Cyanocobalamin Impurity 26 CAS CATO-C4X-187426
| CAS No. | CATO-C4X-187426 |
| Molecular Formula | C63H86CoN12O16P |
| Molecular Weight | 1357.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Cyanocobalamin Impurity 26.
CATO supplies Cyanocobalamin Impurity 26 (CAS CATO-C4X-187426), a pharmacopoeial impurity reference standard (molecular formula C63H86CoN12O16P, MW 1357.36 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Cyanocobalamin Impurity 26 (C63H86CoN12O16P) contains a nitrogen-containing heterocyclic scaffold, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 27.0, corresponding to approximately 27 ring(s) or double-bond equivalent(s). With a molecular weight of 1357.36 g/mol, it falls into the high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C63H86CoN12O16P |
| Molecular Weight | 1357.36 g/mol |
| Purity | >95% |
| 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 |
| Nitrogen Atoms | 12 |
Related Cyanocobalamin Standards
- Cyanocobalamin Impurity 24 (CAS CATO-C4X-187424)
- Cyanocobalamin Impurity 25 (CAS CATO-C4X-187425)
- Cyanocobalamin Impurity 27 (CAS CATO-C4X-187427)
- Cyanocobalamin EP Impurity B (CAS 26264-28-8)
- 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)
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