Fragrance Science: From “Smells Nice” to a Chemical World That Can Be Studied and Standardized
Fragrance Science: From “Smells Nice” to a Chemical World That Can Be Studied and Standardized
Fragrance materials are often understood as “things that provide a pleasant scent.” In scientific research and industrial contexts, however, they are better viewed as a chemical system dominated by volatile and semi-volatile organic molecules (VOCs/SVOCs), and may also contain small amounts of low-volatility accompanying components. This field spans raw material sources from plants, animals, and synthetic chemistry, and also intersects with analytical chemistry, toxicology and regulations, sensory science, neuroscience, and more.
Fragrance Materials, Fragrance Compositions, and Odor: Three Commonly Confused Concepts
Term | One-sentence definition | “What it is” in the lab | Common misconception |
Fragrance material | A raw material that provides odor characteristics (a single compound or a natural complex mixture) | Single compounds, essential oils/extracts, natural isolates, etc. | Mistaking “fragrance material” for “fragrance composition/formula” |
Fragrance composition/base | A mixture of multiple fragrance materials compounded according to a formula | A formulation system with complex components, often containing solvents/fixatives | Treating a fragrance composition as a “directly quantifiable reference standard” |
Odor/fragrance perception / Olfactory perception | The sensory outcome of human olfaction in response to odor molecules | Sensory output (related to concentration/threshold/inter-individual variability) | “Stronger smell = higher content” is not reliable |
Why Fragrance Matters: History and Culture
The cultural history of fragrance can be simplified into three “paradigm shifts”: incense and rituals → extraction and trade → synthesis, standardization, and safety.
The word “perfume” is often explained as deriving from the Latin per fumum (“through smoke”), reflecting early practices centered on incense burning and fumigation.
Key Milestones in Fragrance History
Time/Stage | What happened | What it means for research/products |
Early civilizations (incense-based) | Fragrance was mainly used for rituals, ambient scenting, and identity symbolism | From the beginning, “scent” was intertwined with society and culture |
Early extraction practices (e.g., Ancient Egypt) | Aromatic liquids were obtained via pressing/maceration | “Fragrance materials” entered a form that could be produced and stored |
Process-industrial stage (distillation/extraction, etc.) | Advances in separation technologies enriched natural product forms | Product forms such as essential oils / concretes / absolutes / resins emerged |
Modern industrial stage | Synthetic aroma chemicals, compounded fragrances, and standardized testing matured | From “smells good” to “scalable, reproducible, and regulatable” |
Contemporary trends | Sustainability and biomanufacturing (fermentation/metabolic engineering) rise | More stable supply and reduced dependence on scarce/ethically sensitive materials |
Sources and Classification of Fragrance Materials
The most effective way to understand fragrance materials is to look simultaneously along three axes: source (natural/synthetic/biomanufactured), product form (essential oil/concrete/single compound, etc.), and chemical family (terpenes/esters/aldehydes, etc.).
3D Classification Overview (Source × Form × Research Focus)
Dimension | Category | What you would receive in the lab | Most common research focus |
Source | Natural | Essential oils, concretes/absolutes, resins/balsams, natural complex substances | Batch variability, adulteration traceability, fingerprint profiling |
| Synthetic | High-purity single aroma chemicals (aldehydes/esters/musks, etc.) | Mechanistic studies, quantitation, stability and reactivity |
| Biomanufactured | Fermentation/biocatalysis products (often for terpenes, etc.) | Sustainable routes, impurity profiling, control of isomers |
Form | Single compound / reference standard | Single compounds, isotope-labeled internal standards | Qualitative/quantitative analysis, method validation |
| Natural complex substances | Essential oils/extracts/resins | Fingerprinting, comparison, traceability |
| Compounded fragrance | Formulated mixtures (complex composition) | Application evaluation, controlled release materials, sensory research |
Chemical family | Terpenes, esters, aldehydes, lactones, sulfur/nitrogen compounds, musks, etc. | — | Determines volatility, stability, oxidation risk, contamination risk |
Chemical Family “Quick Reference”
Family (examples) | Common odor associations | Lab risks/notes | Analytical tips |
Terpenes / terpene alcohols (limonene, linalool, etc.) | Citrus, fresh, floral | Prone to oxidation; composition drifts after opening; oxidation products may be more sensitizing | For fingerprinting/batch comparisons, strictly standardize sampling and storage |
Esters | Fruity, sweet | Possible hydrolysis/transesterification (affected by water, pH, temperature) | Control solvent choice, water content, and sample pH |
Aldehydes | Strong diffusion, “soapy”/fatty nuances | Some aldehydes show stronger irritation/impact; small dose changes can markedly shift odor | Control contamination even at low levels; blanks and system rinsing are critical |
Lactones / some ketones | Milky, coconut, peach, etc. | Some are hydrophobic and readily adsorb to plastics | Prefer glassware; evaluate recovery |
Sulfur/nitrogen odorants | Very low thresholds, extremely intense | Severe “memory effects” (adsorption in tubing/inlet/septa) | Use dedicated tools/consumables; group analysis; run strong samples last |
Note: Odor descriptions are “common associations,” not absolute rules; experimental design should rely on analytical data and reference standards.
Industry Landscape: Three Key Drivers (Turning “Regulations/Standards” into Usable Takeaways)
Driver 1: Safety Evaluation and Use Boundaries (IFRA + RIFM)
- IFRA Standards: A widely adopted industry “baseline/rule system” for safe use of fragrance ingredients, guiding safe use across different product categories. IFRA Standards are an industry self-regulatory safety system (not legislation) and are widely used as a compliance baseline in the fragrance supply chain.
- RIFM: RIFM provides open-access entry points to peer-reviewed safety assessments and research; meanwhile, the RIFM Database is a subscription/member database covering 7,000+ materials and extensive literature and study data.
Lab note: IFRA/RIFM mainly address risk assessment under consumer use scenarios; laboratories must also comply with SDS, institutional EHS, and ventilation/PPE requirements.
Driver 2: Regulatory Compliance (Especially for Cosmetics)
- EU (EU) 2023/1545 updates allergen labeling requirements in the annexes of the cosmetics regulation and provides thresholds (different for leave-on vs rinse-off).
- At the chemicals level, CLP provides the framework for classification, labeling, and packaging of substances/mixtures; REACH governs registration, evaluation, authorization, and restriction logic for chemicals.
- Quick compliance reference (EU 2023/1545): Allergen labeling thresholds are 0.001% (10 ppm) for leave-on products and 0.01% (100 ppm) for rinse-off products. The regulation sets transition periods: products not meeting the new requirements may be placed on the market until 2026-07-31, and may continue to be made available/supplied until 2028-07-31. In addition, where certain allergens are managed under the annexes as a single combined entry, labeling triggers are typically determined based on whether the sum concentration of relevant substances within that entry exceeds the threshold.
Driver 3: Sustainability and Supply Chain (Rise of Biomanufacturing)
Biotechnology (fermentation, metabolic engineering, biocatalysis) has become an important route for sustainable production of fragrance materials (especially terpenes, etc.). Related reviews systematically summarize microbial cell-factory strategies and challenges.
Common and Important Research Applications of Fragrance-Related Chemicals
Common research scenario (the problem you solve) | Common fragrance-related chemical products | Typical outputs/conclusions | Common platform/methods | Key experimental pitfalls to avoid |
1. Component ID & fingerprinting: What is in the sample? What are the major peaks? | Essential oils/natural extracts; natural complex substances (NCS) | Qualitative lists, fingerprints, major component ratios | GC-MS/GC-FID; GC×GC if needed | Inconsistent sampling/storage can create “false batch differences”; use blanks and strict system cleaning for complex samples |
2. Authenticity/adulteration: Dilution, substitution, blending? | Oils/extracts; authentic reference samples; key single-compound standards | Evidence chain (markers, abnormal ratios, chemometrics patterns) | GC-MS + chemometrics; multidimensional GC if needed | Don’t rely on a single peak; run controls/replicates; standardize pretreatment and dilution factors |
3. Method development/quantitation: Traceable and reproducible content? | Single-compound standards, mixed standards, isotope internal standards; target standards | Calibration curves, response factors, validation reports (RSD/recovery/LOD) | Quantitative GC-FID/GC-MS | Internal standard choice and recovery evaluation are central; overload/memory effects destroy repeatability |
4. Stability & oxidation mechanisms: What changes after opening/light/temperature? | Single aroma chemicals (terpenes/alcohols); essential oils/fragrances | Change curves, new products, oxidation-risk alerts | Accelerated aging + periodic GC-MS | Many common terpenes (e.g., linalool, limonene) oxidize in air to hydroperoxides linked to sensitization risk; “sealed, light-protected, cool storage + opening records” is essential |
5. Skin sensitization/allergen research: Which components may cause contact dermatitis? | Target single compounds; oxidation products (e.g., hydroperoxides); key components in fragrance formulas | Sensitization evidence, exposure source inference, risk communication materials | Patch testing/ROAT (clinical); mechanistic studies; chemical ID support | Oxidation products are often more sensitizing than parent compounds; avoid bias and exposure risks from “aged samples” |
6. Scent delivery/controlled release: Longer lasting and triggerable release? | Micro/nanocapsules, cyclodextrin inclusion, polymer carriers; fragrances/single compounds | Release curves, longevity performance, structure–property relationships | Materials characterization + release kinetics; GC monitoring | Focus on “content/release,” not only smell; evaluate adsorption by carrier/packaging materials |
7. Olfactory receptor–ligand screening/odor prediction: Why does a molecule smell this way? How do receptors respond? | High-purity single compounds; well-defined mixtures | OR–odorant response data, hits, model predictions | Receptor assays/imaging; databases + computational screening | Use OR–odorant databases and compute-then-test workflows to reduce blind screening |
8. Indoor air exposure & secondary pollutants: What reactions occur indoors? | Perfume/air-freshener formulas; terpene monomers (e.g., limonene) | VOC emission profiles, ozone oxidation products, particles/SOA | Chamber tests + online MS/aerosol instrumentation | Ozone + terpenes can generate oxidized products and particles; include “reaction products” in exposure/health risk work |
9. Environmental fate & ecological risk: How do fragrance chemicals transform/migrate in water/sediment? | Synthetic musks and other fragrance components; environmental matrices (water/sludge/biota) | Occurrence levels, transformation products, risk assessment | Environmental chemical analysis + modeling | Reviews and studies on sources/distribution/transformation/ecological risk of synthetic musks support topic selection |
10. Bioactivity screening: Antibacterial/anti-inflammatory/antioxidant, etc. (natural product/application-oriented) | Essential oils; main constituents (monoterpenes, phenylpropanoids) | MIC/inhibition spectra, mechanistic clues, synergy effects | In-vitro assays + composition correlation | Activity is highly sensitive to composition variation; GC-MS composition data is required for reproducibility |
11. Safety assessment & alternative methods: Build a citable safety evidence chain | Single compounds and natural complex substances (NCS) | Safety assessment summaries, endpoint coverage, risk communication | Literature/database evaluation; alternative methods research | RIFM provides open peer-reviewed safety assessments and resource entry points for citation and compliance justification |
How to Choose Fragrance-Related “Chemical Products”: Choose by Task, Not by Name
What you want to do | What to choose | Typical examples | Key considerations |
Natural-source research/teaching | Natural complex substances (essential oils/extracts/resins) | Citrus essential oils, frankincense resin extracts | Large batch variation—fingerprinting and records are required; terminology is recommended to align with ISO 9235 |
Mechanism/reaction/stability | Synthetic or high-purity single aroma chemicals | Aldehydes, esters, terpene alcohols, lactones, etc. | Watch purity, water content, and storage; avoid plastic adsorption |
Application evaluation/material controlled release | Compounded fragrances/bases | Fragrance formulas | Complex composition—be cautious with quantitation and mechanistic interpretation; mind allergens/exposure |
Qualitative/quantitative analysis & method development | Reference standards/mixed standards/isotope internal standards | Single standards, mixed standards, isotope internal standards | Build curves, recovery, repeatability; ensure traceability |
Safety/regulatory research support | Safety and compliance resources | IFRA/RIFM, EU regulations | IFRA/RIFM focus on consumer scenarios; labs still follow SDS + EHS as primary requirements |
Note: ISO 9235 aims to define terminology related to natural aromatic raw materials and does not cover fragrance formulations or all industry terminology.
Representative Aladdin Fragrance-Related Chemicals List
This table summarizes a representative set of fragrance-related chemicals available from Aladdin (more specifications can be searched on the official website by CAS number or via the product list summary at the end of the article). Items are categorized and ordered by commonly used structural and application dimensions in fragrance chemistry (e.g., aliphatic esters/aldehydes, terpenes, aromatics and phenylpropanoids, lactones, modern synthetic fragrance skeletons, synthetic musks, trace sulfur/nitrogen modifiers, solvents/carriers, and standards).
The “Function/Application” column helps readers quickly understand typical uses in fragrance formulation development, odor references, GC/GC-MS methods, stability and materials-based fragrance retention studies, olfactory activity screening, and more—supporting an intuitive workflow from “selection → use → application scenario.”
Category | CAS No. | Aladdin Cat. No. | Name | Specification/Purity | Function/Application |
Standards / physical property calibration | 121-33-5 | Vanillin melting point reference standard | +81 to +83 °C | Melting point standard for physical property calibration/identification; vanillin (same CAS; also referred to as vanillin) is also commonly used as a reference in sweet/vanilla note studies and method validation | |
Solvents/carriers & diluents | 25265-71-8 | Dipropylene glycol (mixture of isomers) | ≥98% | Common diluent and carrier for fragrances (DPG); used for dissolving and formula dilution, lowering evaporation rate, improving processability; also used for sample preparation and pretreatment controls | |
Solvents/carriers & diluents | 77-93-0 | Triethyl citrate (TEC) | ≥98% | Common solvent/carrier and fixative aid (also used as plasticizer/solvent in material systems); suitable for fragrance dilution, retention/release studies, and solubility evaluation | |
Solvents/carriers & fixative solvents | 120-51-4 | B683409 | Benzyl benzoate | ≥94% | Common fixative solvent/carrier in fragrances (slightly balsamic base note); dissolves poorly soluble materials, enhances dry-down longevity and stability; also used in method/solvent compatibility tests |
Aliphatic ester (fruity) | 123-92-2 | Isoamyl acetate | AR, ≥99% | Classic banana fruity note; used in food flavors and fruity top-notes for perfumes and personal/home care | |
Aliphatic aldehyde (green/fresh) | 66-25-1 | Hexanal | ≥97% | Green leaf/grass, pod-like freshness; used to shape “green leaf” and “melon/rind” profiles and top-note structure | |
Aliphatic aldehyde (citrus/soapy) | 124-13-0 | 1-Octanal (Octanal) | ≥97% | Citrus peel/fatty-waxy freshness; used to build citrus/soapy/fresh “marine breeze” top-notes and diffusion | |
Green leaf alcohol (C6) | 928-96-1 | cis-3-Hexen-1-ol | ≥98% | Signature “fresh-cut grass/green leaf” odor; used for green leaf/cucumber peel/green fruit profiles; commonly used as a reference for HS/HS-SPME method development and volatile studies | |
Green leaf ester (C6) | 3681-71-8 | cis-3-Hexenyl acetate | ≥98% | Green leaf + rind (softer; green apple/pear nuance); used to modify green-fruity top notes; also a qualitative/quantitative reference in green systems | |
Terpenes (monoterpene hydrocarbon / pine-resin) | 80-56-8 | (±)-α-Pinene | ≥98% | Pine/resin freshness; used in pine/forest/cleaning profiles; also common in terpene-derivative synthesis studies | |
Terpenes (monoterpene hydrocarbon / citrus) | 5989-27-5 | L592270 | (R)-(+)-Limonene | ≥93% (GC) | Citrus peel, fresh terpene character; used to strengthen citrus top notes, home care “fresh” profiles; also for terpene analysis and reference |
Terpenes (sesquiterpene hydrocarbon) | 87-44-5 | T684510 | (−)-trans-Caryophyllene | ≥85% | Woody spicy/peppery; used in woody-spicy systems and natural product/essential oil research and benchmarking |
Terpene alcohol (floral/soapy bridge) | 98-55-5 | α-Terpineol | ≥80% (GC), mixture of isomers | Floral (muguet/clove-like) with slight pine and soapy facets; used to bridge floral→pine and build “clean” feel in soaps/wash care; also for terpene alcohol stability/oxidation studies | |
Terpene alcohol (floral core) | 106-24-1 | Geraniol | ≥98% | Rose/geranium floral; used as a main body in florals and to enhance natural petal character | |
Terpene alcohol (floral/citrus blossom) | 106-25-2 | Nerol | ≥97% | Soft sweet floral (orange blossom/rose); often used for citrus blossom/white floral systems and “naturalness” modification; also for geraniol/nerol compatibility studies | |
Terpene alcohol (rose/citronella) | 106-22-9 | β-Citronellol | ≥95% | Rose/citronella freshness; used for rose/geranium/fresh florals and soapy systems; common in wash care/home care floral skeletons (also suitable as a reference for allergen/formula consistency studies) | |
Terpene aldehyde (citronella/lemon fresh) | 106-23-0 | Citronellal | ≥93% | Lemon/citronella freshness; used in citrus and fresh florals, repellent/herbal fresh styles; also a common starting material in synthesis/route studies of muguet materials (e.g., hydroxycitronellal) | |
Terpene aldehyde (citral/geranial type) | 141-27-5 | (E)-3,7-Dimethylocta-2,6-dienal | ≥98% | Strong lemon freshness; used in citrus accords, soapy/wash care fresh notes; also common as a fragrance synthesis intermediate | |
Terpene aldehyde (citral/neral type) | 106-26-3 | (Z)-3,7-Dimethyl-2,6-octadienal | ≥95% | Lemon freshness, softer nuance; used in citrus/fresh floral systems, boosting “fresh-squeezed lemon” and diffusion | |
Terpene aldehyde (Citral: mixture) | 5392-40-5 | Citral | Moligand™, ≥97%, mixture of cis and trans | Core lemon note material; used in citrus fragrances and daily-care fresh profiles; also used in olfaction research and odor evaluation | |
Terpene ester (linalyl acetate) | 115-95-7 | Linalyl acetate | ≥96% | Lavender/bergamot fresh floral; used for “crisp floral top notes” in perfumery and wash care | |
Terpene ester (terpene alcohol–aromatic acid ester) | 94-48-4 | (E)-3,7-Dimethylocta-2,6-dien-1-yl benzoate | ≥98% | Floral–fruity with soft sweetness; used in floral systems as a fixative and roundness enhancer (mid-to-dry-down modifier) | |
Terpene oxide (eucalyptol / 1,8-cineole) | 470-82-6 | Eucalyptol | Moligand™, ≥99% | Eucalyptus, cool and transparent; used in toothpaste, fresheners, medicinal/cooling styles and home care “penetration” effects | |
Terpene ketone (camphor) | 76-22-2 | (±)-Camphor (synthetic) | Moligand™, ≥96% | Camphoraceous cooling diffusion; used for medicinal/cooling daily-care scenting, air freshening and “uplifting penetration” in clean profiles | |
Cooling agent (terpene alcohol) | 89-78-1 | DL-Menthol | Moligand™, ≥98% | Cooling mint; used in toothpaste/gum/cooling daily-care and mint profile construction | |
Terpene alcohol (general floral backbone) | 78-70-6 | Linalool | Moligand™, ≥98% | Fresh floral (lavender/muguet/citrus blossom); a universal floral backbone in perfumery, wash care, and soaps | |
Aromatic ester (floral) | 140-11-4 | Benzyl acetate | ≥99% | Jasmine with fruity sweetness; used to sweeten florals and enhance natural jasmine diffusion | |
Aromatic ester (floral-fruity sweet) | 103-45-7 | Ethyl phenylacetate | ≥98% (GC) | Honeyed/fruity sweetness; used to sweeten and round floral-fruity accords and improve dry-down | |
Aromatic alcohol (rose core) | 60-12-8 | 2-Phenylethanol (Phenethyl alcohol) | ≥99% (GC) | Classic rose floral; used as a main body in florals, softening harshness and adding natural petal realism; also used as a QC/method development reference | |
Aromatic aldehyde (cinnamaldehyde) | 104-55-2 | Cinnamaldehyde | Moligand™, ≥95% (GC) | Primary cinnamon spicy component; used in spicy/oriental accords and food flavors; also used for formula stability and oxidation change evaluation | |
Aromatic alcohol (cinnamyl alcohol) | 104-54-1 | Cinnamyl alcohol | ≥98% | Cinnamon-floral (hyacinth nuance) with sweetness; used to sweeten and soften oriental/floral accords and improve dry-down texture | |
Coumarins (powdery/tonka fixative) | 91-64-5 | Coumarin | ≥99% | Hay/powdery/tonka sweetness; used in fougère/oriental dry-down skeletons and fixation; also a reference for powdery systems | |
Phenylpropanoids (phenol: eugenol) | 97-53-0 | Eugenol | 10 mM in DMSO | Clove spicy; used in olfactory activity research (DMSO stock), also as a spicy molecule reference | |
Phenylpropanoids (aromatic ether: anethole) | 104-46-1 | Anethole | Moligand™, 10 mM in DMSO | Anise/licorice sweetness; used in olfaction research (DMSO stock) to evaluate aromatic ether activity in sweet notes | |
Aromatic alcohol (olfaction reference) | 100-51-6 | Benzyl alcohol | 10 mM in DMSO | Olfaction research stock; used as a reference for aromatic alcohol odor activity and system compatibility | |
Lactones (γ-hexalactone) | 695-06-7 | γ-Hexalactone | ≥99% | Creamy/coconut/fruity; used in food flavors and dessert/milky accords to boost thickness; also for threshold/blending studies in fruity-milky systems | |
Lactones (γ-decalactone) | 706-14-9 | γ-Decalactone | ≥98% | Peachy creamy fruit; used for fruity/milky/tropical profiles and to thicken dry-down longevity | |
Modern freshener (wash-care backbone) | 18479-58-8 | Dihydromyrcenol | ≥99% | Typical “fresh clean/citrus-soapy” backbone; used in wash care, deodorization, cleaners, and cologne styles to enhance diffusion; suitable as a fresh-type reference and stability study target | |
Aquatic/ozonic aroma chemical (Calone type) | 28940-11-6 | 7-Methyl-1,5-benzodioxepin-3-one | ≥98% | Typical aquatic/marine/ozonic backbone (with watery-melon sweetness); used in sea-breeze/aquatic perfumes, air fresheners, home care; also as an olfaction/sensory reference | |
Jasmine diffuser (Hedione type) | 24851-98-7 | Methyl dihydrojasmonate (mixture of trans and cis) | ≥96% | Transparent jasmine/airy character; used to increase diffusion in perfumery and wash care, improving floral clarity and layering | |
Muguet / fresh floral backbone (Cyclamen aldehyde type) | 103-95-7 | 3-(4-Isopropylphenyl) isobutyraldehyde | ≥92% | Muguet/clean fresh floral with strong diffusion; used as a “clean floral” backbone and diffuser in wash care, soaps, and perfumery | |
Muguet floral backbone (Lilial type) | 80-54-6 | L774899 | Lilial | ≥94% | Muguet/clean floral backbone, suitable for formula exploration and odor evaluation; Note: for consumer-product-oriented research/formulation, pay extra attention to regional regulatory compliance (this substance is more strictly restricted in some markets) |
Muguet floral backbone (Hydroxycitronellal) | 107-75-5 | Hydroxycitronellal | Moligand™, ≥98% | Classic muguet (Muguet) backbone; used to build “clean floral” in soaps/wash care and florals; commonly used as a reference for muguet thresholds, blending, and analytical comparison | |
Woody-amber backbone (Iso E Super type; confirm naming by CAS) | 54464-57-2 | Amber ketone | ≥90%, mixture of isomers | Woody-amber/soft woody; enhances diffusion and spatial volume; used in perfumery and daily care to increase “woody body,” smooth edges, and improve longevity (often used as a woody-amber backbone reference) | |
Ambergris fixative (Ambroxide/Ambroxan) | 6790-58-5 | (−)-Ambroxide | ≥98% (GC) | Core ambergris/amber-woody fixative; used to strengthen base and longevity, improve fixation and texture; suitable for adsorption/release and stability studies of base materials | |
Violet/orris powdery backbone (β-ionone) | 14901-07-6 | β-Ionone | ≥97% | Violet/orris powdery with woody/fruity undertones; used as a mid-note backbone in violet/orris/tea/floral-woody systems; also a reference for structure–odor relationship studies | |
Violet powdery backbone (commercial isomethyl ionone formula) | 127-51-5 | Isomethyl Ionone 70 | 60–70% | Violet/woody powdery backbone (common commercial concentration); used to thicken mid-notes in soaps/wash care and perfumery; convenient for weighing and gradient experiments | |
Synthetic musk (macrocyclic musk: Musk T) | 105-95-3 | Musk T | ≥98% | Soft sweet musk; enhances fixation and longevity; used as a base note and longevity booster in laundry/daily care/perfumery | |
Synthetic musk (polycyclic musk: Galaxolide) | 1222-05-5 | Galaxolide | 50% in diethyl phthalate solution | Musk solution for formulations (easy weighing/dilution); used for musky base and longevity in laundry soap and wash care (the solvent system is also suitable for compatibility/solubility evaluation) | |
Sweetness booster (ethyl maltol) | 4940-11-8 | Ethyl maltol | ≥99% | Caramel/cotton-candy sweetness; used to sweeten and round flavors (food/tobacco) and fragrances, and mask off-notes | |
Sulfur flavor material (thioether: DMS) | 75-18-3 | M103711 | Dimethyl sulfide (DMS) | ≥99% | Used in synthesis, analysis, and flavor research; trace levels used to build “cooked”/vegetable-like base nuances (strict dose control; note cross-contamination and safety management) |
Sulfur flavor material (thiol: methanethiol) | 74-93-1 | M194889 | Methanethiol | 5% in propanediol | Strong onion/garlic sulfur note (requires ultra-low dose); used for trace modification in savory/meaty flavors; solution form facilitates safer trace preparation |
Nitrogen heterocycle odorant (indole) | 120-72-9 | Indole | ≥99% | At low dose, adds “animalic realism” to jasmine/orange blossom; used for odor evaluation and formula research; trace levels enhance white-floral depth (high contamination risk and memory effects) | |
Others (synthetic additive/thiourea) | 105-55-5 | 1,3-Diethyl-2-thiourea | ≥97% | Organic synthesis reagent/intermediate (not a typical fragrance material); may be used in fragrance synthesis route studies for reaction promotion/mechanistic research |
Aladdin: https://www.aladdinsci.com/