5(6)-Carboxynaphthofluorescein diacetate CAS 163831-68-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 163831-68-3 |
| Molecular Formula | 2*C33H20O9 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5(6)-Carboxynaphthofluorescein diacetate (CAS 163831-68-3) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: 2*C33H20O9. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | 2*C33H20O9 |
| Molecular Weight | 560.51 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 24.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
Related Carboxynaphthofluorescein Standards
Recommended Standards
- cis-4-(Azetidin-1-yl)-3-fluoropiperidine dihydrochloride (CAS 2105380-44-5)
- Tert-butyl tert-pentylalaninate (CAS 1510744-49-6)
- 2-Cyano-N-(4-(diethylamino)phenyl)acetamide (CAS 29395-19-5)
- Methyl 2,2-dimethylspiro[chromane-4,1'-cyclopropane]-6-carboxylate (CAS 1350761-55-5)
- 2,6-Dichloro-4-methylaniline (CAS 56461-98-4)
- (E)-2-(2-Chloro-5-ethylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1355090-24-2)
- Semaglutide impurity 249 (CAS CATO-C4X-2226249)
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