Cefapirin EP Impurity A CAS 60517-75-1
| CAS No. | 60517-75-1 |
| Molecular Formula | C15H13N3O4S2 |
| Molecular Weight | 363.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Cefapirin EP Impurity A (C15H13N3O4S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 363.41 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Cefapirin EP Impurity A (CAS 60517-75-1), a pharmacopoeial impurity reference standard (molecular formula C15H13N3O4S2, MW 363.41 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
CATO manufactures Cefapirin EP Impurity A 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.
Physical & Chemical Properties
| Molecular Formula | C15H13N3O4S2 |
| Molecular Weight | 363.41 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Cefapirin Standards
Recommended Standards
- Ruxolitinib Impurity 224 (CAS CATO-C4X-2058224)
- Ozenoxacin (CAS 245765-41-7)
- Palbociclib Impurity 166 (CAS CATO-C4X-1125166)
- 5-((5-(3-Hydroxyprop-1-yn-1-yl)-4-((piperidin-4-ylmethyl)amino)pyridin-2-yl)amino)pyrazine-2-carbonitrile (CAS 1137478-29-5)
- Luliconazole Impurity 13 (CAS CATO-C4X-285313)
- Trelagliptin Impurity 11 (CAS 1938080-42-2)
- Olaparib Impurity 40 (CAS CATO-C4X-113540)
- 2-Ethyl-1-((5-isopropyl-2-methoxyphenyl)sulfonyl)-1H-imidazole (CAS 898644-99-0)
- 7-Ethoxy-2,3-dihydro-1h-pyrrolo[1,2-a]indole (CAS 439948-86-4)
- (Z)-3-(benzylamino)-N-(4-chlorophenyl)but-2-enamide (CAS 77871-53-5)
- n-Cycloheptyl-1-propylpiperidin-4-amine (CAS 416866-04-1)
- 3alpha-Angeloyloxypterokaurene L3 (CAS 79406-11-4)
- 3-Benzyl-6-isopropylisoxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 1263211-73-9)
- Angiotensin II Antipeptide (CAS 121379-63-3)
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