Cefdinir Impurity 52 CAS 66338-96-3
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 66338-96-3 |
| Molecular Formula | C5H5N3O3S |
| Molecular Weight | 187.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Cefdinir Impurity 52 (CAS 66338-96-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C5H5N3O3S. Molecular weight: 187.18 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C5H5N3O3S |
| Molecular Weight | 187.18 g/mol |
| Purity | >95% |
| 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.) | 1975 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cefdinir Standards
- Cefdinir CP Impurity A (CAS 1450758-21-0)
- Cefdinir Impurity 34 (CAS 73150-67-1)
- 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
- 6-methoxy-5-nitropyrimidine-4-thiol (CAS 7154-33-8)
- 2-Acetamido-5-Nitrothiazole (CAS 140-40-9)
- 5-Nitrothiophene-2-Carbohydrazide (CAS 39978-44-4)
- Dronedarone Impurity 3 (CAS 141645-16-1)
- Evocalcet Impurity 38 (CAS 2167323-88-6)
- 4,5-Diphenyl-1H-imidazol-2(5H)-one (CAS 642-36-4)
- 4-(3-(3,4-Dimethylphenyl)-1,2,4-oxadiazol-5-yl)-2-(4-fluorophenyl)isoquinolin-1(2H)-one (CAS 1326849-89-1)
- 1-[3-(4-chlorophenyl)-1,2,4-oxadiazol-5-yl]ethan-1-one (CAS 1339787-73-3)
- trans-2-amino-4,4-difluoro-cyclohexanol;hydrochloride (CAS 1422130-46-8)
- Tirzepatide Impurity 37 (CAS CATO-C4X-324037)
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