(3R,4S,5R)-Ascorbic Acid EP Impurity C CAS 21675-47-8
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 21675-47-8 |
| Molecular Formula | C6H10O7 |
| Molecular Weight | 194.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (3R,4S,5R)-Ascorbic Acid EP Impurity C (CAS 21675-47-8), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C6H10O7. Molecular weight: 194.14 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C6H10O7 |
| Molecular Weight | 194.14 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1963 |
Recommended Standards
- Ascorbic Acid EP Impurity C (CAS 526-98-7)
- Niraparib Impurity 7 (CAS 1289162-62-4)
- Gefitinib Impurity 28 (CAS 1379208-77-1)
- Tinidazole Impurity 12 (CAS 595596-97-7)
- Apixaban Impurity 66 (CAS CATO-C4X-108866)
- 2-(Difluoromethoxy)-7-mercaptobenzo[d]oxazole (CAS 1806281-92-4)
- 2,4-Bis((furan-2-ylmethyl)amino)benzenesulfonamide (CAS 2138047-64-8)
- 2-Chloro-5H,6H,7H-pyrrolo[3,4-d]pyrimidine hydrochloride (CAS 1314790-85-6)
- Ethyl 6-ethylpicolinate (CAS 41337-78-4)
- D-Tyr1-Tirzepatide (CAS CATO-CPTD788928)
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