Capecitabine Impurity 40 CAS 5636-04-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 5636-04-4 |
| Molecular Formula | C16H18N4O4 |
| Molecular Weight | 330.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Capecitabine Impurity 40 (CAS 5636-04-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C16H18N4O4. Molecular weight: 330.34 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C16H18N4O4 |
| Molecular Weight | 330.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 4 |
Related Capecitabine Standards
- Capecitabine Impurity 42 (CAS CATO-C4X-102442)
- Capecitabine Impurity 10 (CAS 2230479-30-6)
- Capecitabine EP Impurity C (CAS 161599-46-8)
- Capecitabine Impurity 56 (CAS CATO-C4X-102456)
- Capecitabine Impurity 37 (CAS CATO-C4X-102437)
- Capecitabine Impurity 47 (CAS CATO-C4X-102447)
- Capecitabine Impurity 48 (CAS CATO-C4X-102448)
- Capecitabine Impurity 27 (CAS 13007-50-6)
Recommended Standards
- 6-phenyl-1-(pyridin-4-ylmethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 869464-83-5)
- Diethyl 1-(4-acetylphenyl)-1H-pyrazole-3,4-dicarboxylate (CAS 853356-11-3)
- 6-Phenyl-1-(pyridin-3-ylmethyl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 920627-44-7)
- 3-(2-AMINOETHYL)ANILINE 2HCL (CAS 879666-37-2)
- Ethyl 2-mesityl-2-(methylamino)acetate (CAS 1218428-24-0)
- 2-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-4-(3-chlorophenyl)-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one (CAS 860786-38-5)
- 5,6-Diamino-2-(difluoromethyl)nicotinic acid (CAS 1806868-20-1)
- Ethyl 2-(3-bromo-4-methoxyphenyl)-2-oxoacetate (CAS 1226321-02-3)
- 4-Fluoro-6-methylpyridin-2-ol (CAS 1227508-66-8)
- 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