Acid Red 35 CAS 6441-93-6
| CAS No. | 6441-93-6 |
| Molecular Formula | C19H15N3O8S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Acid Red 35 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Acid Red 35 (CAS 6441-93-6) is a high-purity analytical reference standard with the molecular formula C19H15N3O8S2Na and a molecular weight of 500.45 g/mol.
Acid Red 35 (C19H15N3O8S2Na) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H15N3O8S2 2*Na |
| Molecular Weight | 500.45 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Recommended Standards
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- Acamprosate EP Impurity B Calcium Salt (Acamprosate USP Related Compound B) (CAS 3093141-49-9)
- Ethyl 5-oxo-5-(pyridin-3-yl)pentanoate (CAS 22971-47-7)
- 3-Fluoro-4-hydroxypent-3-en-2-one (CAS 759-02-4)
- Methylhydrazine (CAS 60-34-4)
- 2-Ethyl-4,5,6,7-tetrahydrobenzofuran-3-amine (CAS 2567560-38-5)
- Hippocampal Cholinergic Neurostimulating Peptide (CAS 140158-49-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com