Cefdinir Impurity 34 CAS 73150-67-1
| CAS No. | 73150-67-1 |
| Molecular Formula | C5H4N2O3S |
| Molecular Weight | 172.16 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Cefdinir Impurity 34 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
As a process- or degradation-related impurity, Cefdinir Impurity 34 (CAS 73150-67-1, C5H4N2O3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C5H4N2O3S, Cefdinir Impurity 34 contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 172.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C5H4N2O3S |
| Molecular Weight | 172.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cefdinir Standards
- Cefdinir CP Impurity A (CAS 1450758-21-0)
- Cefdinir Impurity 52 (CAS 66338-96-3)
- Cefdinir Impurity 38 (CAS 37155-50-3)
- Cefdinir CP Impurity C (CAS 79349-82-9)
- Cefdinir Impurity 37 (CAS CATO-C4X-121037)
- Cefdinir Impurity 74 (CAS CATO-C4X-121074)
- Cefdinir USP Impurity A (CAS 178949-03-6)
- Cefdinir Impurity 53 (CAS 178422-40-7)
Recommended Standards
- 3,4-DICARBOXYTHIOPHENE 3,4-THIOPHENEDICARBOXYLIC ACID 4282-29-5 AS06782 Thiophene-3,4-dicarboxylic acid (CAS 4282-29-5)
- Raltitrexed Impurity 5 (CAS 4282-31-9)
- 23945-50-8 5-Pyrimidinecarboxylic acid, 1,2,3,4-tetrahydro-4-oxo-2-thioxo- 1,2,3,4-Tetrahydro-4-oxo-2-thioxopyrimidine-5-carboxylic acid EINECS 245-948-8 2-Thiouracil-5-carboxylic acid (CAS 23945-50-8)
- Prusogliptin impurity 2 (CAS 949153-15-5)
- Progesterone Impurity 49 (CAS 96790-16-8)
- Ziprasidone Impurity 29 (CAS CATO-C4X-124029)
- Flurbiprofen Impurity 92 (CAS CATO-C4X-144492)
- 9b-(4-Chlorophenyl)-1,2,3,9b-tetrahydro-5H-imidazo[2,1-a]isoindol-5-one (CAS 6038-49-9)
- 2-(5-Fluoropyridin-2-yl)propan-2-ol (CAS 1195255-81-2)
- (5-Chloro-2-(difluoromethyl)phenyl)(pyridin-4-yl)methanone (CAS 1261754-35-1)
- 2-Methylpenta-1,4-dien-3-ol (CAS 1572-62-9)
- Nortriptyline EP Impurity H (CAS 24755-73-5)
- (Methyl-pyridin-2-ylmethyl-amino)-acetic aciddihydrochloride 1185304-77-1 (CAS 1185304-77-1)
- Semaglutide-d15 (CAS 910463-68-2(non-labelled))
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 18665070610 / Nicole.chen@cato-chem.com