Vat Violet 13 CAS 4424-87-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4424-87-7 |
| Molecular Formula | C28H14N2O4 |
| Molecular Weight | 442.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Vat Violet 13 (CAS 4424-87-7), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C28H14N2O4. Molecular weight: 442.42 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C28H14N2O4 |
| Molecular Weight | 442.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 23.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
Related Vat Standards
- Methyl Violet B Base (CAS 1733-13-7)
- Methyl violet (CAS 1340-02-9)
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- Ethyl Violet [Sensitive spectrophotometric reagent for anionic surfactants] (CAS 65121-93-9)
- Ethyl Violet (CAS 2390-59-2)
- Acid Violet 17 (CAS 4129-84-4)
- Acid Violet 49 (CAS 1694-09-3)
Recommended Standards
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- 5-Methoxy-1,2-dimethyl-6-oxo-1,6-dihydropyrimidine-4-carboxylic acid (CAS 1936543-00-8)
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- 2-(Difluoromethoxy)cyclohexan-1-ol (CAS 2306269-33-8)
- Methyl 4,5,6,7-tetrahydrothieno[2,3-c]pyridine-2-carboxylate (CAS 1259287-72-3)
- N-(3-Amino-4-chlorophenyl)-2-[2-(sec-butyl)-phenoxy]butanamide (CAS 1020054-76-5)
- Semaglutide impurity 210 (CAS CATO-C4X-2226210)
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 13829788188 / jacky.chen@cato-chem.com