Cyanocobalamin EP Impurity B CAS 26264-28-8
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 26264-28-8 |
| Molecular Formula | C63H87CoN13O15P |
| Molecular Weight | 1356.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Cyanocobalamin EP Impurity B (CAS 26264-28-8), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C63H87CoN13O15P. Molecular weight: 1356.37 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C63H87CoN13O15P |
| Molecular Weight | 1356.37 g/mol |
| Purity | >90% |
| 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) | 27.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 13 |
Related Cyanocobalamin Standards
- Cyanocobalamin /Vitamin B12 Impurity 22 (CAS 38437-93-3)
- Cyanocobalamin /Vitamin B12 Impurity 23 (CAS 38218-55-2)
- Cyanocobalamin EP Impurity D(Cyanocobalamin-b-monocarboxylic acid; 32-Carboxycyanocobalamin) (CAS 38218-77-8)
- Cyanocobalamin Impurity 31 (CAS 121483-62-3)
- Cyanocobalamin Impurity 24 (CAS CATO-C4X-187424)
- Cyanocobalamin Impurity 25 (CAS CATO-C4X-187425)
- Cyanocobalamin Impurity 26 (CAS CATO-C4X-187426)
- Cyanocobalamin EP Impurity E (8-epi-cyanocobalamin) (CAS 41325-63-7)
Recommended Standards
- N-((11bS)-4-((2,6-Bis(3,5-dimethylphenyl)-4-(((trifluoromethyl)sulfonyl)imino)-4l5-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl)imino)-2,6-bis(3,5-dimethylphenyl)-4l5-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl)-1,1,1-trifluoromethanesulfonamide (CAS 2088441-78-3)
- Diethyl 2-(3-oxo-3,4-dihydroquinoxalin-2-yl)hexanedioate (CAS 1501-72-0)
- Fibronectin Fragment (1377-1388) (H-2572.0001) (CAS 162257-99-0)
- Carbidopa EP Impurity H HCl (CAS CATO-C4X-231015)
- Carbocisteine Impurity N1 (CAS 31898-75-6)
- Ethyl 2,6-dichloro-5-methoxypyrimidine-4-carboxylate (CAS 1313717-11-1)
- Cefodizime Impurity 14 (CAS CATO-C4X-180614)
- 2-Chloro-N'-methyl-N'-(6-methylpyridin-2-yl)acetohydrazide (CAS 924867-43-6)
- 1-(4-Bromophenyl)-2,2-dimethylpropane-1,3-diol (CAS 1444623-87-3)
- [5-31]-Semaglutide (CAS CATO-C4X-2226263)
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