Cyanocobalamin Impurity 33 CAS CATO-C4X-187433
| CAS No. | CATO-C4X-187433 |
| Molecular Formula | C9H9N3O |
| Molecular Weight | 175.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Cyanocobalamin Impurity 33 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 175.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Cyanocobalamin Impurity 33 (CAS CATO-C4X-187433) is a certified pharmaceutical impurity reference standard with the molecular formula C9H9N3O and a molecular weight of 175.19 g/mol.
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 | C9H9N3O |
| Molecular Weight | 175.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Cyanocobalamin Standards
- Cyanocobalamin /Vitamin B12 Impurity 18 (CAS 582-60-5)
- Cyanocobalamin /Vitamin B12 Impurity 17 (CAS 3171-45-7)
- Cyanocobalamin Impurity 13 (CAS 17234-76-3)
- Cyanocobalamin Impurity 14 (CAS CATO-C4X-187414)
- Cyanocobalamin /Vitamin B12 Impurity 36 (CAS CATO-C4X-187436)
- Cyanocobalamin /Vitamin B12 Impurity 37 (CAS CATO-C4X-187437)
- Cyanocobalamin /Vitamin B12 Impurity 38 (CAS CATO-C4X-187438)
- Cyanocobalamin (Vitamin B12) (CAS 68-19-9)
Recommended Standards
- N-nitroso 5,6-dimethylbenzimidazole (CAS CATO-C4X-187428)
- 1-methyl-1H-indazole-3-carboxamide (CAS 129137-93-5)
- Rizatriptan Impurity 24 (CAS 119192-11-9)
- Dihydralazine EP Impurity A (CAS 649765-80-0)
- Capivasertib Impurity 4 (CAS CATO-C4X-33124)
- Domperidone Impurity 40(1s,4r) (CAS CATO-C4X-142040)
- Piperazine Impurity 16 (CAS CATO-C4X-242716)
- 3-Methoxy-N-((1-propyl-1H-pyrazol-4-yl)methyl)propan-1-amine hydrochloride (CAS 1856056-34-2)
- (1S,2R)-2-aminocycloheptane-1-carboxylic acid hydrochloride (CAS 522644-09-3)
- 3-{3-[(2-chloro-6-fluorophenyl)methoxy]phenyl}-1-[(3-chlorophenyl)methyl]-1H-pyrazole (CAS 477712-58-6)
- Amicarbazone (CAS 129909-90-6)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-fluorophenyl)-2-methylpropanoic acid (CAS 1172127-44-4)
- Pyrazolo[1,5-a]pyridin-7-ylboronic acid (CAS 1231934-40-9)
- β-Bag Cell Peptide (Aplysia californica) (CAS 109024-47-7)
Why CATO?
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