Cefotiam Impurity 17 CAS CATO-C4X-120417
| CAS No. | CATO-C4X-120417 |
| Molecular Formula | C18H23N9O4S3 |
| Molecular Weight | 525.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Cefotiam Impurity 17 (CAS CATO-C4X-120417, C18H23N9O4S3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C18H23N9O4S3, Cefotiam Impurity 17 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 525.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C18H23N9O4S3 |
| Molecular Weight | 525.63 g/mol |
| Purity | 97%+ |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 9 |
| Sulfur Atoms | 3 |
Related Cefotiam Standards
- Cefotiam Impurity 24 (CAS CATO-C4X-120424)
- delta(3)-Cefotiam (CAS 142182-63-6)
- Cefotiam (CAS 61622-34-2)
- Cefotiam Impurity 20 (CAS CATO-C4X-120420)
- Cefotiam Impurity 9 (CAS CATO-C4X-12049)
- Cefotiam Impurity 11 (CAS CATO-C4X-120411)
- Cefotiam Impurity 32 (CAS CATO-C4X-120432)
- Cefotiam Impurity 51 (CAS CATO-C4X-120451)
Recommended Standards
- tert-Butyl (2S,4R)-4-(tosyloxy)-2-((tosyloxy)methyl)pyrrolidine-1-carboxylate (CAS 61478-27-1)
- (2R,3R,4R,5R)-N-Dodecyl-2,3,5,6-tetrahydroxy-4-(((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexanamide (CAS 69313-68-4)
- Tert-butylcis-2,4-bis(p-tolylsulfonyloxymethyl)azetidine-1-carboxylate (CAS 1414540-38-7)
- trans-Carboxy Glimepiride-d5 (CAS 1217718-14-3)
- Flomoxef Impurity 50 (CAS CATO-C4X-138250)
- Aniline (Mesalazine EP Impurity K) (CAS 62-53-3)
- Mefatinib Impurity 16 (CAS CATO-C4X-299216)
- 2-((4-Isopropylphenyl)sulfonyl)acetonitrile (CAS 207853-59-6)
- 5-Phenyl-1,2,3,4-thiatriazole (CAS 34733-85-2)
- 4-amino-3-(1H-imidazol-1-yl)benzoic acid (CAS 1550964-06-1)
- 2-amino-N-cyclopropyl-3-phenylpropanamide hydrochloride (CAS 1251922-95-8)
- cis-Benzyl 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)cyclopentanecarboxylate (CAS 2007916-24-5)
- N-Succinimidyl 4-Azidosalicylate (CAS 96602-46-9)
- Semaglutide Impurity 124 (CAS CATO-C4X-2226124)
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