3,5-Br₂-PADAT - AR

Cat. No.: D1456583

GRADE & PURITY AR

Storage

Protected from light,Room temperature

Shipped In

Normal

Specifications

Spezifikationen & Reinheit

AR

Storage

Protected from light,Room temperature

Verschickt in

Normal

Note

AR

Chemische und physikalische Eigenschaften

• Empfindlichkeit: Light sensitive

Application Protocols

Manufacturer-tested applications and conditions: Not specified for this item; refer to CoA/Spec Sheet and SDS.

General protocols to consider given the light-sensitive storage note:

• Stock solution preparation: Weigh quickly under dim light, dissolve in a suitable solvent (e.g., DMSO, DMF, MeCN, or others determined by a solubility screen). Prepare single-use aliquots in amber vials or wrap in foil. Record concentration gravimetrically for accuracy.
• Analytical QC: Run incoming lot verification via HPLC/UPLC with photodiode array and LC–MS. Retain a protected reference aliquot at room temperature to monitor any light-induced changes versus working aliquots.
• Bioassay dosing (if applicable): Dilute stocks into assay buffer with vigorous mixing; maintain consistent cosolvent levels in controls. Protect plates/tubes from light during incubation.
• Synthetic use (if applicable): For coupling reactions, pre-dry glassware, degas solvents, and protect reaction from strong light if decomposition is suspected. Maintain inert atmosphere where catalysts are air/moisture sensitive.

These are general, literature-informed procedures intended to help plan laboratory use in the absence of item-specific protocols.

Biological Roles

Item-specific biological function and targets: Not specified for this item; refer to CoA/Spec Sheet. This product is labeled For Research Use Only.

General considerations for life-science use when structure is not yet confirmed:

• If used as a chemical probe or label, verify purity, spectral properties (UV–Vis/fluorescence), and chemical stability in the intended biological matrix (buffer composition, pH, ionic strength, presence of nucleophiles such as thiols and amines).
• Perform small-scale stability testing in aqueous media (time-course LC/MS) to detect hydrolysis, oxidation, or photolysis, especially given the “protected from light” storage instruction.
• Assess nonspecific binding and aggregation (e.g., by dynamic light scattering or detergent sensitivity tests) before interpreting bioassay results.

No claims are made here about endogenous pathways, receptors, or enzymes for 3,5-Br₂-PADAT. If a biological role is intended, document mechanism-of-action hypotheses and controls in your study plan and corroborate with orthogonal assays. Always avoid medical or diagnostic use.

Buffer Applications

This product is not described as a buffering agent, and no pKa values or ionic functionalities are provided. Therefore, it is not typically used to prepare buffer systems.

Practical guidance for using as a stock solution in buffered assays (general):

• Prepare a concentrated stock in a suitable solvent (often DMSO or DMF when water solubility is low). Filter-sterilize through 0.22 µm if sterility is required and the compound is filter-stable.
• Titrate the stock into the aqueous buffer with rigorous mixing to a final cosolvent fraction ≤1–2% v/v to minimize effects on cells/enzymes. Match the cosolvent content in control wells.
• If light sensitive, prepare and dispense under dim light; use amber microplates or wrap plates in foil during incubation.

Common biological buffers (literature reference only):

• Phosphate (PBS, pH ~7.2–7.4), HEPES (pH 6.8–8.2), Tris (pH 7–9), acetate (pH 4–5.5), and citrate (pH 3–6) may be suitable assay matrices depending on compound stability; confirm compatibility experimentally.

Item-specific buffer recipes, pKa, and target pH ranges: Not specified for this item; refer to CoA/Spec Sheet if applicable.

Green Alternatives

Because the definitive structure and use-case are not specified, green chemistry guidance is provided at the process level rather than the molecule level.

Greener solvent substitutions (general guidance):

• Replace DMF/NMP where possible with safer polar aprotics: Cyrene, propylene carbonate, ethyl lactate, or dimethyl carbonate (assess solubility and reaction compatibility first).
• Swap DCM/CHCl3 in workups and extractions with EtOAc, MTBE, or heptane/EtOAc mixes. For chromatography, use heptane over hexane and minimize halogenated eluent use.
• Consider 2-MeTHF or CPME instead of THF/Et2O for ether solvent roles; they offer improved safety and sustainability profiles and often tolerate water.

Energy and waste minimization:

• Employ catalysis and high-concentration protocols to reduce solvent volumes. Flow chemistry can improve heat/mass transfer for halogenated aromatics (if relevant) and limit exposure to light/air.
• Use LED or green photoredox conditions in place of mercury lamps if photochemistry is required.

Comparison snapshot (literature, typical trends):

• 2-MeTHF vs THF: similar polarity and coupling performance; 2-MeTHF has higher boiling point and better stability toward peroxide formation.
• EtOAc vs DCM: broadly substitutable in many extractions; less toxicity and environmental impact.

Note: Validate any substitution against the confirmed structure and performance targets of 3,5-Br₂-PADAT.

Pharmaceutical Uses

Regulatory/compendial status: Not specified for this item; no pharmacopeial monograph indicated. Product is for Research Use Only and is not intended for human or veterinary use.

Formulation-relevant considerations (general, if used in preclinical research settings):

• Solubility enabling: For hydrophobic small molecules, co-solvents (PEG 400, ethanol), surfactants (Tween 80, Cremophor EL), or cyclodextrins may be used to create research-grade dosing vehicles. Verify stability and light protection.
• Solid form: If polymorphism or amorphous character affects dissolution, characterize by PXRD/DSC/TGA where relevant. None of these attributes are specified for this item and must be established experimentally if needed.
• Adsorption and container compatibility: Test adsorption to plastics or rubber stoppers, especially for aromatic/halogenated organics. Amber glass is recommended for light-sensitive substances.

No therapeutic claims are made. Any use in formulation development must be confined to laboratory research, with risk assessments guided by the SDS and institutional policies. For translational workflows, obtain full identity and impurity profiles from the CoA and perform appropriate preformulation studies.

Physical Properties

Item-specific specifications (this catalog entry):

• 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.
• Solubility: Not specified for this item; refer to CoA/Spec Sheet.
• LogP, pKa, refractive index, UV/Vis features: Not specified for this item; refer to CoA/Spec Sheet.

General/literature guidance to plan handling when properties are unknown:

• If the compound is an aromatic, dibrominated derivative (as the name suggests), it may be relatively nonpolar with limited water solubility and enhanced solubility in chlorinated or polar aprotic organic solvents (e.g., DCM, THF, DMF, DMSO). This is a literature tendency for aryl bromides and is NOT a specification for this item.
• Dibromination often increases molecular mass and can raise melting point versus the non-halogenated parent (literature trend). Actual values depend strongly on the PADAT core and substitution pattern.
• If the material is photosensitive (storage “protected from light”), expect potential light-induced degradation or isomerization; evaluate by tracking UV–Vis/HPLC before and after light exposure (general practice).

Practical screening workflow (general):

• Perform a 6–8 solvent solubility screen at room temperature (water, MeOH, EtOH, ACN, acetone, EtOAc, DCM, DMF/DMSO). Target 1–10 mg/mL.
• For analytical setup, record a quick UV–Vis scan (200–800 nm) and LC retention in two orthogonal methods to benchmark purity and stability prior to scale-up or storage decisions.

Quality and Grades

Item-specific grade: AR (Analytical Reagent).

What AR grade generally implies:

• AR denotes high chemical purity suitable for demanding analytical and synthetic applications. Typical expectations include tightly controlled inorganic/organic impurities, but exact impurity limits are manufacturer- and item-specific.
• UV/Vis background, water content, and trace metals are NOT specified for this item; refer to CoA/Spec Sheet if these parameters are critical to your method (e.g., photophysics, catalysis, or trace analysis).

Implications for use:

• AR grade is appropriate for most research-scale synthetic transformations, assay development, and material preparations where consistent purity is important.
• If your use is chromatography-sensitive (HPLC/UPLC detectors) or catalysis-sensitive (ppm metal), request the lot-specific CoA. For photophysical experiments, confirm any stabilizers and baseline absorbance.

Stabilizers/additives:

• None are indicated in the provided data. If present, stabilizers will appear on the CoA/SDS. Their presence can influence assay backgrounds, shelf life, and reactivity.

Documentation and compliance:

• Research Use Only (as stated). No medical, diagnostic, or food/feed use.
• For regulated workflows (GLP/GMP-adjacent), retain lot-specific CoA and SDS, and verify that AR grade and impurity profiles meet your internal specifications.

Reaction and Applications

Item-specific applications: Not specified for this item; no manufacturer application notes were provided beyond Research Use Only.

General possibilities inferred from the name fragment “3,5-Br₂-” (literature context, conditional):

• If the compound bears a 3,5-dibromo-aryl motif, it could serve as a versatile synthon for cross-coupling chemistry (Suzuki–Miyaura, Sonogashira, Buchwald–Hartwig) to elaborate the PADAT scaffold. This statement is conditional on the actual structure; confirm via CoA/Spec Sheet.

Photosensitivity considerations (applicable based on storage instructions):

• Conduct reactions and transfers under subdued light; use amberized glassware. If photochemistry is intended, pre-characterize absorption bands and quantum yields to avoid unplanned degradation.

Best-practice tips (general):

• Dry solids under vacuum at ambient or mild temperature if compatible (verify stability first). Use anhydrous solvents for moisture-sensitive steps.
• For catalytic couplings (if applicable), degas solvents (argon sparge or freeze–pump–thaw) and use oxygen-minimized environments to maintain catalyst activity.
• Establish quick QC checkpoints: TLC with dual visualization (UV254/anisaldehyde or KMnO4), LC/MS to confirm mass integrity after manipulations, and a dark-control sample to monitor light stability.

If the material is a probe or chromophore (common for photo-labile items):

• Characterize emission/absorption in intended media and evaluate photobleaching under assay illumination. Validate filter sets and excitation sources accordingly. These are general photochemical practices, not item-specific claims.

Reaction Conditions

Item-specific conditions: Not specified for this item.

General literature conditions for aryl dibromides (only if the compound indeed contains aryl–Br bonds; confirm structure first):

• Suzuki–Miyaura: Pd(PPh3)4 (1–3 mol%), K2CO3 or K3PO4 (2–3 equiv), 1,4-dioxane/H2O (3:1) or toluene/H2O, 60–100 °C, 2–16 h. Alternative ligands: SPhos/XPhos for challenging substrates.
• Buchwald–Hartwig amination: Pd2(dba)3 (0.5–1 mol%) with BrettPhos or RuPhos (1–2 mol%), NaOtBu or Cs2CO3, toluene or dioxane, 80–110 °C.
• Sonogashira: Pd(PPh3)2Cl2 (1–2 mol%) + CuI (5–10 mol%), Et3N or i-Pr2NH, THF/amine, 25–80 °C. Copper-free variants use bulky phosphines and higher temperatures.
• Lithium–halogen exchange: n-BuLi or s-BuLi at −78 to −30 °C in THF/Et2O, strict anhydrous conditions. Quench with electrophiles to elaborate substitution.

General practices:

• Anhydrous, degassed solvents and inert atmosphere are often required. Monitor by TLC/GC/LC–MS.
• Scale-up: validate heat removal and exotherm management, especially for halogen–metal exchanges.

These conditions are provided as literature examples and are not specifications or guarantees for this item. Optimize based on the confirmed structure and target transformation.

Safety and Handling

Item-specific hazard information provided:

• Signal Word: Not specified for this item; refer to SDS.
• H-Statements: Not specified for this item; refer to SDS.
• GHS Classification: Not specified for this item; refer to SDS.
• Pictograms: Not specified for this item; refer to SDS.

General laboratory safety guidance (not a substitute for the SDS):

• Handle in a fume hood wearing appropriate PPE: lab coat, nitrile gloves, and splash goggles. Avoid inhalation of dust/aerosols and prevent skin/eye contact.
• Given the storage note “protected from light,” minimize exposure to ambient and UV light. Use amber glassware or wrap vessels in foil; store in the original light-protective container.
• Avoid incompatible conditions typical for halogenated organics and reactive building blocks: strong nucleophiles/bases or reducing/oxidizing agents may induce undesired reactions (general caution; confirm against the definitive structure once available).
• Spills: Contain solids/liquids with inert absorbent, collect mechanically, and dispose via approved hazardous waste streams. Prevent release to drains/environment.
• First aid (general): If on skin/eyes, rinse with water for ≥15 min; remove contaminated clothing. If inhaled, move to fresh air. If ingested, rinse mouth. Seek medical advice; show the SDS.

Authoritative source: Always consult the product’s SDS for definitive hazard, exposure limits, and emergency measures before use. The above are prudent practices when detailed GHS data are not available.

Solvent Selection

Item-specific solubility and miscibility: Not specified for this item; refer to CoA/Spec Sheet.

General approach when solvent data are unknown (practical guidance):

• Begin with a tiered solubility screen at room temperature using 1–2 mg in 0.5 mL:
  • Protic/polar: water, MeOH, EtOH, i-PrOH
  • Polar aprotic: ACN, acetone, DMF, DMSO
  • Mid-polar/aprotic: EtOAc, THF, CPME
  • Nonpolar: toluene, DCM, hexanes
• If light sensitivity is noted (here it is), conduct screening under reduced light; use amber vials.

Selection by application (general):

• Stock solutions for bioassays: DMSO or DMF are common due to broad solubilizing power; dilute into aqueous buffers with ≤1–2% final cosolvent to minimize biological interference.
• Synthetic chemistry: Choose solvent by reactivity of the functional groups once structure is confirmed. For cross-coupling of aryl bromides (if applicable), dioxane, toluene, THF, or polar aprotics (DMF/MeCN) are common (literature).
• Purification: If nonpolar, normal-phase silica with hexanes/EtOAc; if polar/ionic, consider reverse-phase or ion-exchange.

Comparison snapshot (general tendencies, not item-specific specs):

• DMSO/DMF: maximal solubility, high boiling, challenging removal.
• ACN/acetone: mid-polar, easy removal, good for analytics.
• EtOAc/THF: versatile for workups, moderate polarity.
• Toluene/DCM: strong for hydrophobic solids; DCM is chlorinated—handle with care.

Storage and Reconstitution

Item-specific instructions (from Product Data):

• Storage Conditions: Protected from light; Room temperature.
• Shipped In: Normal.

Additional practical guidance (general, non-specification):

• Store in original, tightly closed container. Use amber vials or secondary light shielding (foil wrap) to limit photodegradation during routine handling.
• For working solutions, prepare small aliquots to minimize repeated light/air exposure. Label with concentration, solvent, and preparation date. Keep solutions protected from light; refrigerate if your stability studies indicate benefit, but avoid freezing unless stability is confirmed.
• Reconstitution: The optimal solvent is not specified for this item. Begin with a small-scale solubility screen (water, MeOH/EtOH, ACN, acetone, DMSO, DMF, DCM, THF). Sonication and mild warming (≤35–40 °C) under subdued light can aid dissolution if the compound is stable under those conditions.
• Stability monitoring: Periodically verify by HPLC/LC–MS and, if relevant, UV–Vis to detect photobleaching or degradation.

For definitive storage life, solution stability, and compatible solvents, consult the lot-specific CoA and SDS. Research Use Only.

Structure and Identity

Item-specific identifiers (as provided):

• CAS: Not specified for this item; refer to CoA/Spec Sheet.
• InChIKey: Not specified for this item; refer to CoA/Spec Sheet.
• SMILES: 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.

Notes on the name and structural implications (general/literature context):

• The designation “3,5-Br₂-” commonly denotes a 3,5-dibrominated motif on an aromatic ring (literature convention). However, the core scaffold abbreviated as “PADAT” is not defined in the supplied data, and multiple structural interpretations are possible.
• Without a definitive structure, stereochemical features, ring systems, or functional groups cannot be asserted for this specific catalog item.

What you can expect to find on the CoA/Spec Sheet (practical guidance):

• A resolved IUPAC name and/or structure drawing clarifying the PADAT scaffold.
• Exact molecular formula and relative molecular mass, enabling stoichiometric use.
• Structure-defining identifiers (SMILES, InChI, InChIKey) that allow database cross-referencing and ELN registration.

2D structure description (deferred):

• Not available for this item from the provided data. Please consult the product CoA/Spec Sheet for the definitive structural representation before planning structure-dependent applications (e.g., cross-coupling, photophysics, or bioconjugation).

Synthetic Utility

Item-specific reactivity: Not specified for this item; refer to CoA/Spec Sheet for definitive functional groups.

Conditional utility inferred from the name fragment “3,5-Br₂-” (literature context):

• Aryl dibromides often function as linchpin electrophiles for diversification:
  • Suzuki–Miyaura coupling with boronic acids/esters to install aryl/alkenyl units.
  • Sonogashira coupling to append alkynes for conjugation/rigidification.
  • Buchwald–Hartwig amination for anilines/carbazoles.
  • Lithium–halogen exchange or Grignard formation (typically from aryl bromides) to access nucleophiles, though functional-group tolerance must be evaluated.
• 3,5-disubstitution patterns can enable symmetry-based convergent synthesis on certain scaffolds (if PADAT is symmetric), facilitating iterative couplings. These are literature possibilities and not specifications for this item.

Photophysical or conjugation aspects (if PADAT is a chromophore/probe, suggested by light protection):

• Derivatization at halo positions can tune absorption/emission and improve solubility. Validate by UV–Vis/PL and quantum yield measurements post-modification.

Actionable recommendation:

• Confirm the exact structure and functional groups from the CoA/SDS before planning any transformation. Then select catalyst/ligand/solvent systems based on that structure and desired chemoselectivity.

Target Specificity

No target, antigen, enzyme, or receptor specificity is provided for this product. It is not described as an antibody, protein, or nucleic acid reagent in the supplied data.

Item-specific target data: Not specified for this item; refer to CoA/Spec Sheet.

If used as a chemical probe (general guidance):

• Establish target engagement with orthogonal methods (biochemical IC50/Ki, CETSA, DARTS, chemoproteomics) and include counterscreens to exclude assay artifacts (aggregation, redox cycling, phototoxicity). These are general best practices and not item-specific claims.