Julibrine II , CAS No.142628-29-3

CAS: 142628-29-3 Cat. No.: J1448689 Summenformel: C₂₀H₃₁NO₁₂ Molekulargewicht: 477.46

Storage

Store at -20°C

Shipped In

Ice chest + Ice pads

Übersicht

Julibrine II is a pyridoxine derivative that can be isolated from the bark of the Albizzia julibrissin DURAZZ. Julibrine II has the ability to induce cardiac arrhythmias.

Spezifikationen

Storage

Store at -20°C

Verschickt in

Ice chest + Ice pads

Dieses Produkt erfordert Kühlkettenversand. Grundversand und andere Economy-Optionen sind nicht verfügbar.

Namen und Kennungen

Molekulargewicht

477.46

Application Protocols

No manufacturer-tested application protocols are provided for this item.

General-purpose protocols (non-item-specific):

• Stock preparation for small molecules:
  • Weigh under low light and dry conditions if hygroscopicity is suspected.
  • Dissolve in anhydrous DMSO to 10–50 mM; vortex and, if necessary, gentle warming (<40°C). Filter through 0.22 µm PTFE prior to use.
• Cell-based assays:
  • Prepare serial dilutions in DMSO, then dilute into pre-warmed media, keeping final DMSO ≤0.1–0.5% v/v. Include vehicle controls.
  • Verify absence of precipitation microscopically or by nephelometry.
• LC-MS quantitation setup:
  • Use reverse-phase C18 with water/MeCN + 0.1% formic acid. Optimize gradient and source parameters for sensitivity. Prepare matrix-matched calibration curves.

These are generic methods; tailor to your system after verifying compound stability and solubility.

Biological Roles

No biological mechanism-of-action, pathway involvement, or target information is provided for this product in our catalog data.

General guidance for evaluating biological roles (non-item-specific):

• Begin with unbiased profiling: cell viability, reporter assays, or phenotypic screens across relevant model systems.
• Use orthogonal target identification approaches if activity is observed: chemoproteomics, thermal shift assays, CETSA/DSF, photoaffinity probes where chemistry allows.
• Map ADME-related properties empirically: microsomal stability, permeability (PAMPA/MDCK), and plasma protein binding to contextualize phenotypic results.
• For natural products, consider stereochemistry-dependent activity; confirm enantiopurity or diastereomeric ratio prior to interpretation.

Important: This material is for research use only. No claims are made regarding biological activity, safety, or efficacy in humans or animals.

Buffer Applications

This product is not a buffering agent, and no buffer-specific roles are indicated in the product data.

Practical notes (general):

• If preparing aqueous assay solutions, first dissolve in a compatible co-solvent (e.g., DMSO), then dilute into buffer (e.g., PBS, HEPES, or Tris) with rapid mixing to minimize precipitation. Verify final co-solvent concentration is acceptable for your biological system.
• Pre-screen solubility across pH 3–9 using citrate, phosphate, and borate buffers to identify pH-dependent solubility changes before setting assay conditions.

Green Alternatives

In the absence of item-specific solvent or process requirements, you can still improve the environmental profile of your workflows by selecting greener media and conditions.

Greener choices (general recommendations):

• Prefer water or aqueous buffers when feasible. Adjust pH/ionic strength to enhance solubility.
• Use bio-derived solvents such as 2-MeTHF or Cyrene in place of THF/DMF where compatible.
• Replace chlorinated solvents (DCM/CHCl3) with ethyl acetate, dimethyl carbonate, or propylene carbonate when chromatographic or extraction performance allows.
• For crystallizations, consider ethanol or isopropanol instead of acetone/MEK.

Trade-offs to consider:

• DMSO is effective for stock solutions but has high boiling point and persistence; ACN offers low viscosity and UV transparency but comes from non-renewable sources.

Example comparison (general, not item-specific):

• Traditional vs greener solvent choices
  • THF → 2-MeTHF (lower peroxide tendency, bio-based; different polarity)
  • DMF/NMP → Cyrene or NEP (similar solvency; check stability and base sensitivity)
  • DCM → EtOAc/MTBE (reduced chlorinated waste; watch for flammability)

Always confirm analyte stability and assay performance after any green substitution.

Pharmaceutical Uses

No pharmacopeial monograph, excipient role, or manufacturing use is provided for this item. This product is supplied strictly for research use only and is not intended for human or veterinary use, clinical diagnostics, or as a drug substance/excipient.

General formulation considerations for research (non-item-specific):

• For in vitro studies: prepare concentrated DMSO stocks and dilute into assay media immediately prior to use; minimize DMSO content (≤0.1–0.5% v/v typical for cells).
• For in vivo exploratory research (if permitted by your institution and regulations): confirm identity/purity and conduct full safety assessment; select vehicles such as PEG400/EtOH/saline or Captisol only after verifying compound stability and solubility. Institutional approvals are required.

Reminder: No medical or clinical claims are made or implied for this product.

Physical Properties

Item-specific physicochemical specifications are not provided in the current dataset. Do not assume values; verify on the CoA or SDS for your lot.

• Appearance: Not specified for this item; refer to CoA/Spec Sheet.
• Purity/Grade: Not specified for this item; refer to CoA/Spec Sheet.
• Molecular weight: Not specified for this item; refer to CoA/Spec Sheet.
• Melting point: Not specified for this item; refer to CoA/Spec Sheet.
• Boiling point: Not specified for this item; refer to CoA/Spec Sheet.
• Density: Not specified for this item; refer to CoA/Spec Sheet.
• Refractive index: Not specified for this item; refer to CoA/Spec Sheet.
• pKa/logP/solubility: Not specified for this item; refer to CoA/Spec Sheet.

General laboratory guidance (literature/practice, not item-specific):

• For unknown small molecules, assess solubility sequentially: water → buffers (pH 2–10) → MeOH/EtOH → acetonitrile → DMSO/DMF. Record qualitative solubility and clarify with 0.22 µm filtration before biological assays.
• If solid, determine approximate mp by capillary to detect polymorphism/hydrate formation; if oil, use 1H NMR integration vs internal standard for assay of potency.
• For LC-MS method development, start with C18, 5–40% MeCN/H2O + 0.1% formic acid over 10–15 min; adjust based on retention/ionization.

Quality and Grades

• Grade/Purity: Not specified for this item; refer to CoA/Spec Sheet.

Interpreting quality information (general guidance):

• Research-use material is typically supplied to support discovery and preclinical laboratory studies, not for human/animal therapeutic use or diagnostics.
• If a numerical purity is provided on the CoA (e.g., HPLC area %), distinguish between assay (content of active) and purity (sum of impurities). For natural products, content may be corrected for solvent or water of crystallization.
• If stabilizers or counterions are present, they should be listed on the CoA; these can influence solubility and bioassay outcomes. Adjust molar dosing accordingly.
• Typical release tests you may expect for small molecules: identity (NMR/HRMS), purity (HPLC/UPLC), water (KF), residual solvents (GC), and where relevant optical rotation and melting point.

Requesting documentation:

• Ask for a recent CoA and, if available, a reference spectrum package (1H/13C NMR, LC chromatogram, MS). Confirm lot-to-lot consistency, especially for structure-sensitive assays.

Reaction and Applications

This product is listed under Life Science research and is not presented as a general-purpose synthetic reagent in our catalog. No manufacturer application notes are provided.

General laboratory uses (non-item-specific suggestions):

• If Julibrine II is being evaluated as a bioactive small molecule, typical applications include target screening, phenotypic assays, and analytical method development (LC-MS/MS quantitation, stability profiling).
• For analytical characterization, employ:
  • NMR (1H/13C, 2D experiments) for structural confirmation and impurity profiling.
  • HRMS for exact-mass confirmation; consider adduct behavior in ESI (+/−).
  • HPLC/UPLC for purity and stability-indicating methods; perform stress testing (acid/base/oxidation/light) to map degradation pathways.
• If derivatization is required for detection or SAR work, common transformations include carbamate/urethane formation (for amines/alcohols), acylation, or simple ether/ester preparation. Ensure transformations are planned only after confirming functional groups.

Note: Without structure-specific data, do not assume reactivity patterns or stability. Validate each operation on milligram scale prior to scale-up.

Reaction Conditions

No reaction conditions are item-specific for this product, as it is not positioned as a reagent. If you intend to modify or derivatize the compound for SAR or analytical tagging, use conservative, compatibility-first conditions.

General guidance (non-item-specific):

• Mild acylation/carbamylation: base (DIPEA, pyridine) in DCM or acetonitrile, 0–25°C, 0.5–4 h.
• Amide coupling (if amine/acid present): EDCI/HOBt or HATU with DIPEA in DMF/MeCN, 0–25°C, 1–12 h; monitor by LC-MS.
• Etherification (alcohols): Mitsunobu (PPh3/DIAD) or Williamson conditions (NaH/alkyl halide) with careful control to avoid elimination.
• Hydrogenation (if reducible groups): Pd/C in EtOH or EtOAc under H2 (1–3 bar) at rt–40°C; check for over-reduction.

These are literature-typical conditions, provided as general guidance rather than specifications for this item.

Safety and Handling

Hazard classification details are not provided in the product data for this item. Always consult the product SDS for authoritative guidance.

• GHS classification, pictograms, signal word, H-statements: Not specified for this item; refer to SDS.
• General precautions (good laboratory practice):
  • Wear appropriate PPE: lab coat, safety glasses, and nitrile gloves; use a chemical fume hood when weighing, dissolving, or transferring.
  • Avoid inhalation of dust/aerosols and contact with skin or eyes. Wash hands after handling.
  • Prevent environmental release; collect waste in labeled, compatible containers.
• Storage incompatibilities: In absence of structure-specific data, segregate from strong oxidizers and acids/bases until compatibility is known. Protect from moisture and light if stability is uncertain.
• First-aid overview (general):
  • Inhalation: Move to fresh air; seek medical attention if symptoms persist.
  • Skin/eye contact: Rinse with water for at least 15 minutes; remove contaminated clothing; get medical advice if irritation continues.
  • Ingestion: Rinse mouth; do not induce vomiting; seek medical attention.
• Thermal/chemical stability: Unknown for this specific item. Minimize exposure to heat and repeated freeze–thaw. Follow Storage Conditions below (-20°C) and consult SDS for any decomposition hazards.
• Waste: Dispose according to local regulations for organic research chemicals; do not flush to drain.

Solvent Selection

Because structural and solubility data are not provided, choose solvents empirically while preserving material integrity for downstream assays.

• Practical dissolution sequence (general best practice):
  1. Water or assay buffer (pH 7.4) up to 1 mg/mL.
  2. If insoluble, test MeOH and EtOH (1–5 mg/mL), then acetonitrile.
  3. For stubborn cases, use DMSO or DMF to prepare 10–100 mM stocks; dilute into aqueous media with vigorous mixing to avoid precipitation (keep final DMSO ≤0.1–0.5% v/v for cells).
• Miscibility profile (general):
  • DMSO, DMF: broadly miscible with organics and water; excellent for stock solutions.
  • MeOH/EtOH: protic, miscible with water; good for spectroscopic work.
  • ACN: aprotic, UV-transparent; useful for LC methods.
• Chromatography considerations:
  • Start with reverse-phase C18 using water/MeCN or water/MeOH with 0.1% formic or ammonium bicarbonate, depending on detection.
  • For normal-phase or flash purification, begin with hexanes/EtOAc gradients, moving to DCM/MeOH if polarity is higher.

Small comparison (general):

• Water: safest, but limited solubility for hydrophobes.
• MeOH/EtOH: greener than chlorinated solvents; moderate solvency.
• DMSO: highest solvency; consider cell assay compatibility and hygroscopicity.

Storage and Reconstitution

Item-specific storage conditions provided:

• Storage: Store at -20°C
• Shipping: Shipped in ice chest with ice pads

Additional best practices (general, not item-specific specifications):

• Protect from light and moisture. Store in a tightly closed, inert-atmosphere vial if the compound is air/moisture sensitive (unknown for this item).
• Upon receipt, allow the sealed container to equilibrate to room temperature before opening to avoid condensation.
• If supplied as a solid, subdivide into single-use aliquots to minimize freeze–thaw and headspace exposure. If supplied as solution, verify solvent, concentration, and presence of stabilizers on the CoA.

Reconstitution guidance (general):

• For biochemical assays: prepare a concentrated stock in dry DMSO (e.g., 10–50 mM), then dilute into assay buffer immediately before use; confirm solubility and stability by test injections on LC.
• For spectroscopic work: use anhydrous solvents; record fresh solutions to minimize degradation.

Always consult the product’s CoA/SDS for definitive stability and handling instructions for your specific lot.

Structure and Identity

Brief overview: This listing is for Julibrine II (CAS 142628-29-3). Key structural identifiers are not provided in the current product data and should be confirmed via the supplied CoA/SDS or primary literature.

• CAS: 142628-29-3
• Chemical name: Not specified for this item; refer to CoA/Spec Sheet.
• Synonyms: Not specified for this item; refer to CoA/Spec Sheet.
• Molecular formula: Not specified for this item; refer to CoA/Spec Sheet.
• Molecular weight: Not specified for this item; refer to CoA/Spec Sheet.
• SMILES: Not specified for this item; refer to CoA/Spec Sheet.
• InChI / InChIKey: Not specified for this item; refer to CoA/Spec Sheet.

Structural description (general guidance):

• When identifiers are unavailable, confirm identity by orthogonal methods: 1H/13C NMR, HRMS, IR, and where applicable optical rotation and UHPLC purity.
• If Julibrine II is a small-molecule natural product (as the name suggests), expect defined heteroatoms and potential stereochemistry; verify stereochemical assignments by coupling constants/NOE or comparison to literature spectra.

Documentation recommendation:

• Request and review the CoA for exact structural descriptors, spectral data, and purity information for this specific lot.

Synthetic Utility

This item is offered as a Life Science research material rather than a general synthetic building block. No functional group information is provided.

General strategies if derivatization is desired (non-item-specific):

• If the molecule contains alcohols or amines, consider forming carbamates/urethanes or amide derivatives to create probes or improve stability.
• If an aromatic core is present, late-stage diversification via electrophilic substitution or cross-coupling (e.g., Suzuki–Miyaura from aryl halides/boronates) may be feasible, but only after confirming the presence of compatible handles.
• For analytical tagging, install fluorophores/biotin via NHS esters (amines) or click chemistry (azide/alkyne), provided handles exist.

Caution: Do not assume reactivity without structural confirmation. Perform microscale test reactions and monitor by LC-MS/NMR to avoid material loss.

Target Specificity

No target, epitope, or specificity information is provided for this product. It is not an antibody or affinity reagent entry in our catalog.

Guidance (general):

• If biological activity is suspected, determine target specificity using dose–response profiling, off-target panels, and orthogonal biophysical assays (ITC, SPR, DSF) where feasible.

Häufig gestellte Fragen

How should this product be stored?

Store at ?20 °C. Freezer storage is required to maintain the specified shelf life.

How is this product shipped?

This product ships in an insulated container with ice pads. Unpack on arrival and transfer it to the storage condition stated above.

What are the CAS number, molecular formula and molecular weight?

The CAS Number is 142628-29-3, the molecular formula is C20H31NO12, and the molecular weight is 477.46 g/mol.

What documentation is provided?

Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.