Cefazolin Impurity 61 CAS CATO-C4X-157761
| CAS No. | CATO-C4X-157761 |
| Molecular Formula | C10H13N3O7S |
| Molecular Weight | 319.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Cefazolin Impurity 61 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies Cefazolin Impurity 61 (CAS CATO-C4X-157761), a pharmacopoeial impurity reference standard (molecular formula C10H13N3O7S, MW 319.29 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Cefazolin Impurity 61 (C10H13N3O7S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 319.29 g/mol, it falls into the moderately-high-molecular-weight range. 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).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C10H13N3O7S |
| Molecular Weight | 319.29 g/mol |
| Purity | ＞90% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cefazolin Standards
- Cefazolin Impurity 63 (CAS CATO-C4X-157763)
- Cefazolin EP Impurity G (CAS 1172998-53-6)
- Cefazolin EP Impurity C (CAS 56842-77-4)
- Cefazolin 3-Hydroxymethyl Impurity Sodium Salt (CAS 50971-65-8)
- Cefazolin Impurity 11 (CAS 478494-71-2)
- Cefazolin EP Impurity J (CAS 1675245-00-7)
- Cefazolin USP Related Compound D(Diastereoisomer Mixture) (CAS 1675245-01-8)
- Cefazolin Impurity 89 (CAS CATO-C4X-157789)
Recommended Standards
- 3-(difluoromethyl)-5-([(3,5-dimethyl-4-nitro-1h-pyrazol-1-yl)methyl]sulfanyl)-4h-1,2,4-triazol-4-ami 3-(difluoromethyl)-5-([(3,5-dimethyl-4-nitro-1h-pyrazol-1-yl)methyl]thio)-4h-1,2,4-triazol-4-amine 3-Difluoromethyl-5-(3,5-dimethyl-4-nitropyrazol-1-ylmethylsulfanyl)-[1,2,4]triazol-4-ylamine 3-difluoromethyl-5-(3,5-dimethyl-4-nitro-pyrazol-1-ylmethylsulfanyl)-[1,2,4]triazol-4-ylamine 925179-62-0 (CAS 925179-62-0)
- tert-Butyl 8-fluoro-7-(trifluoromethyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate (CAS 2757409-73-5)
- 2-((2-Isopropyl-4-(trifluoromethyl)-2h-pyrazolo[3,4-b]pyridin-6-yl)thio)acetic acid (CAS 1018046-67-7)
- 3-(2,4-Dichloro-6-methylphenyl)-1,1-diisopropylthiourea (CAS 1980044-24-3)
- Dronedarone Impurity 62 (CAS 5511-89-7)
- Amiodarone Impurity 39 (CAS 138320-27-1)
- Mirogabalin Impurity 29 (CAS CATO-C4X-292429)
- Desthiobiotin-PEG3-NHS ester (CAS 2411681-92-8)
- 2-(2-Bromobenzoyl)benzoic acid (CAS 51310-33-9)
- 4-(Methylsulfanyl)pyrimidin-2-amine (CAS 1073-54-7)
- 2-Bromo-3-fluoroisonicotinaldehyde hydrate (CAS 1553621-71-8)
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- 4-Acetyl-5-hydroxy-1-methyl-1H-pyrrol-3(2H)-one (CAS 303081-91-6)
- D-Trp25-Tirzepatide (CAS CATO-CPTD788909)
Why CATO?
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