Fluorescent Brightener 351 CAS 38775-22-3
Purity >80%In StockPharmaceutical Standards
| CAS No. | 38775-22-3 |
| Molecular Formula | C28H22O6S2 |
| Molecular Weight | 518.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Fluorescent Brightener 351 (CAS 38775-22-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C28H22O6S2. Molecular weight: 518.60 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C28H22O6S2 |
| Molecular Weight | 518.60 g/mol |
| Purity | >80% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Sulfur Atoms | 2 |
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Recommended Standards
- Fmoc-Orn(Dde)-OH (CAS 269062-80-8)
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- Pemafibrate Impurity 43 (CAS CATO-C4X-290343)
- 2-(Thiophen-3-yl)cyclohexan-1-ol (CAS 1934721-78-4)
- N-(4-Isopropylphenyl)-5-methoxy-1-methyl-4-oxo-1,4-dihydropyridine-2-carboxamide (CAS 1040659-33-3)
- Cyanocobalamin EP Impurity G（50-methylcyanocobalamin） (CAS 15130-04-8)
- 3-Fluoro-5-iodo-4-methylbenzonitrile (CAS 1357624-09-9)
- (R)-1-(2-Chloropyridin-4-yl)propan-1-amine (CAS 1212959-02-8)
- 2-Bromo-5-(difluoromethyl)-4-fluoronicotinaldehyde (CAS 1806904-77-7)
- Semaglutide impurity 66 (CAS CATO-C4X-222666)
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