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Revisões
Avaliações dos Clientes
Application Protocols
Validated application data (e.g., WB, IHC, IF, flow cytometry, ELISA, enzymatic assays) are not provided for 4A3-SC8.
Item-specific
Tested applications and recommended dilutions: Not specified for this item; refer to CoA/Spec Sheet.
General guidance (literature/practice)
Upon receipt, run a small pilot to confirm performance in your assay of interest. Optimize concentration, incubation times, temperature, and buffer composition empirically.
Refer to the CoA and SDS before establishing SOPs.
Biological Roles
The biological target or role of 4A3-SC8 has not been disclosed.
Item-specific
Target/Pathway/Function: Not specified for this item; refer to CoA/Spec Sheet.
General considerations (literature/practice)
If the reagent is a biomolecule (e.g., peptide, protein, or antibody-derived material), potential roles may include binding to a specific epitope, acting as a biochemical probe, or serving as a calibration/control reagent. These possibilities are hypothetical and must not be assumed without item-specific documentation.
Avoid extrapolating biological significance without validated target information from the supplier documentation.
Buffer Applications
Specific buffer systems for 4A3-SC8 are not provided.
Item-specific
Recommended buffer and pH range: Not specified for this item; refer to CoA/Spec Sheet.
General guidance (literature/practice)
For peptides/proteins/bioconjugates: typical working buffers include PBS (pH 7.2–7.6), HEPES (pH 7.0–8.0), or acetate (pH 4.5–5.5) depending on stability and solubility. Include 50–300 mM NaCl to improve solubility; add 0.01–0.05% polysorbate only if compatible with your assays.
For small molecules: prepare concentrated DMSO stocks (e.g., 10–100 mM), then dilute into assay buffers ensuring final DMSO ≤1% to limit biological interference.
These are general practices and not specifications for this item.
Green Alternatives
Without a disclosed structure or solvent system, classical “green substitution” advice (e.g., swapping chlorinated solvents) is not directly applicable.
General sustainability guidance (literature/practice)
Minimize solvent volumes during dissolution and purification; prefer water or bio-based solvents when compatible with the reagent.
For assay stocks, prepare the minimal DMSO/DMF concentration required and dilute into aqueous buffers promptly.
Cold-chain impact: consolidate orders to reduce packaging waste and shipping frequency; promptly transfer to −20°C storage to avoid re-shipments.
Waste: segregate halogenated vs non-halogenated organic waste; neutralize buffers where permitted; use micro-scale protocols to cut waste generation.
Item-specific
No greener alternative specified for this item; refer to CoA/Spec Sheet for any special handling that may influence solvent choice.
Pharmaceutical Uses
No pharmacopeial status, excipient function, or formulation role is provided for 4A3-SC8.
Item-specific
Regulatory/Pharmacopeia listing: Not specified for this item.
Intended use: For research use only; not for human or veterinary use.
Accordingly, no pharmaceutical development or clinical formulation uses should be inferred.
Physical Properties
Core physical-chemical data have not been provided for this item.
Item-specific (from Product Data)
Appearance: Not specified for this item; refer to CoA/Spec Sheet.
Molecular Weight: Not specified for this item; refer to CoA/Spec Sheet.
If 4A3-SC8 is a peptide/protein: typically solid/lyophilized or aqueous solution; hygroscopic; reconstitution in buffered aqueous media is common.
If it is a small molecule: melting/boiling points, logP, pKa, refractive index, and density would be method-dependent and must be sourced from the CoA or analytical characterization.
Values not disclosed (do not use as specifications)
Melting/boiling point, density, solubility profile, logP/logD, pKa, UV–Vis properties, and refractive index: Not specified for this item; refer to CoA/Spec Sheet.
Practical notes
Because storage is specified at −20°C, protected from light and desiccated, treat as moisture- and light-sensitive. Warm to ambient in a desiccator before opening to avoid condensation.
Quality and Grades
Item-specific (from Product Data)
Grade/Purity: Not specified for this item; refer to CoA/Spec Sheet.
Research Use Note: For research use only.
Interpretation and implications (general guidance)
“For research use only” indicates the product is not intended for human or veterinary use, in vitro diagnostic use, or as a drug substance/excipient. It should be handled exclusively in research settings.
When grade/purity is not disclosed, the CoA typically lists key release criteria: identity assay (e.g., LC–MS/intact mass), purity by HPLC, residual solvents/salts, water content (KF), endotoxin/bioburden (for bio-reagents), and activity (if applicable). Always consult the lot-specific CoA.
If the reagent is a peptide/protein: look for sequence confirmation, modification stoichiometry, and counterion content. For small molecules: look for chromatographic purity, identity spectra, and residual inorganic/organic impurities.
Practical QC recommendations
Verify suitability for your application by running a small pilot experiment.
If low UV background or MS-compatibility is critical, confirm that with the CoA or request additional documentation (e.g., UV cutoff, LC–MS traces).
Reaction and Applications
Not enough information is provided to detail reaction chemistry or end-use applications for 4A3-SC8.
Item-specific
Manufacturer Applications: Not specified for this item.
General notes
For biomolecular reagents, “applications” typically include binding/assay workflows, labeling, or functional studies. For small molecules, applications may include screening, probe studies, or synthesis. Please consult the CoA or contact technical support with your intended use for tailored guidance.
Reaction Conditions
No reaction condition guidance can be provided in the absence of structural and reactivity information.
Item-specific
Catalysts, temperatures, solvents, times, or yields: Not specified for this item; refer to CoA/Spec Sheet.
Any experimental design should be preceded by small-scale scouting and verification of identity and stability per the CoA and SDS.
Safety and Handling
Safety details are not provided for this specific item; consult the product SDS for authoritative information.
Item-specific (from Product Data)
Storage: Store at −20°C, desiccated, protected from light.
Shipping: Ice chest + ice pads (cold-chain).
GHS/Signal word/H-statements/Pictograms: Not specified for this item; refer to SDS.
General laboratory precautions (literature/practice)
Use appropriate PPE: lab coat, safety glasses, and chemical-resistant gloves. For powders/lyophilizates, minimize dust/aerosol formation; handle in a clean area or biological safety cabinet if sterility is required.
Avoid repeated freeze–thaw cycles; aliquot upon first thaw/reconstitution.
Incompatibilities: Without structural data, avoid strong oxidizers/reductants, extreme pH, and prolonged exposure to light and moisture.
First-aid overview (general)
Inhalation: Move to fresh air; seek medical attention if symptoms persist.
Skin/eye contact: Rinse with water for several minutes; remove contaminated clothing; seek medical attention if irritation persists.
Ingestion: Rinse mouth; do not induce vomiting; seek medical attention.
Waste disposal
Dispose according to institutional chemical/biological waste procedures. Treat as research reagent; do not release to drains.
Always defer to the SDS and institutional EHS guidance for final instructions.
Solvent Selection
This section is application-dependent and cannot be itemized without structural information.
Item-specific (from Product Data)
No solvent/solubility guidance provided; refer to CoA/Spec Sheet.
General guidance (literature/practice)
If 4A3-SC8 is a peptide/protein/bioconjugate: prefer aqueous buffers (e.g., PBS, HEPES, or acetate) with gentle pH (6.5–8.0). Additives such as NaCl or low percentages of co-solvents (≤10% v/v acetonitrile or DMSO) can aid solubility; filter-sterilize if sterility is required.
If it is a hydrophobic small molecule: dissolve first in anhydrous DMSO or DMF to make a concentrated stock, then dilute into assay buffer/media as needed while monitoring for precipitation.
Do not treat the above as specifications; select solvents only after consulting the CoA and small-scale trials.
Storage and Reconstitution
Item-specific (from Product Data)
Storage conditions: Store at −20°C, protected from light, desiccated.
General reconstitution guidance (literature/practice; not item-specific specifications)
If provided as a lyophilized solid: allow the vial to equilibrate to room temperature in a desiccator before opening to prevent moisture condensation. Reconstitute with sterile, nuclease-free water or an appropriate buffer (e.g., PBS, HEPES) at a concentration suitable for your application. Vortex gently or pipette to mix; avoid foaming for proteinaceous materials.
If provided in solution: keep on ice during handling; promptly aliquot into low-bind tubes to avoid adsorption and minimize freeze–thaw cycles.
Aliquoting: Prepare single-use aliquots and store at −20°C (or as otherwise indicated on the CoA). Avoid repeated freeze–thaw; thaw on ice and mix gently before use.
Light sensitivity: Protect from ambient and UV light during handling (wrap tubes in foil; use amber vials).
Stability: Long-term stability, pH tolerance, and solvent compatibility are Not specified for this item; refer to CoA/Spec Sheet.
Always prioritize the lot-specific CoA for exact diluents, concentrations, and stability windows.
Structure and Identity
Brief overview: 4A3-SC8 is listed under Life Science reagents. The supplier has not disclosed a definitive chemical structure or biomolecular identity for this SKU.
Item-specific (from Product Data)
Product Name: 4A3-SC8 (SKU: A771239)
CAS: 1857340-78-3
InChIKey: 125340 (as provided)
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.
Structural features (general commentary)
The product name suggests a coded research reagent (e.g., peptide, protein, antibody derivative, or small-molecule probe). However, no functional groups, sequence, or conjugation details are provided.
Without a disclosed structure, stereochemistry, ring systems, and functional motifs cannot be described.
Practical identification notes
Use the CAS number when cross-referencing databases or literature. Confirm identity against the Certificate of Analysis (CoA) accompanying your lot.
If analytical confirmation is required, consider orthogonal methods (LC–MS, HRMS, NMR for small molecules; intact mass/peptide mapping for peptides/proteins) after consulting the specific handling guidance from the CoA.
Synthetic Utility
This section is not typically applicable without a defined chemical structure.
Item-specific
Functional group/reactivity information: Not specified for this item; refer to CoA/Spec Sheet.
General note
If 4A3-SC8 were a small-molecule intermediate or linker, synthetic roles could include conjugation, labeling, or scaffold modification. Do not assume such utility without structural disclosure and CoA confirmation.
Target Specificity
Target identity, epitope details, species reactivity, and related immunochemical parameters are not provided for 4A3-SC8.
Item-specific
Antigen/target: Not specified for this item; refer to CoA/Spec Sheet.
Clone/isotype/host: Not specified for this item; refer to CoA/Spec Sheet.
No claims on specificity or cross-reactivity can be made without supplier documentation.
Perguntas frequentes
What is the purity of this product?
This product is supplied at ≥98% purity (chemical assay). Lot-specific values are stated on the Certificate of Analysis.
How should this product be stored?
Store at ?20 °C, protected from light, desiccated. Keep the container tightly closed with desiccant — the material is moisture-sensitive.
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 1857340-78-3, the molecular formula is C75H139N3O16S4, and the molecular weight is 1467.18 g/mol. InChIKey HMIDEMNFLBUNTB-UHFFFAOYSA-N.
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.
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Products are supplied to verified businesses, institutions, and qualified professionals for research and development use only. Not for use in humans, animals, diagnosis, or therapy.
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