Cefazolin Impurity 36 CAS CATO-C4X-157736
| CAS No. | CATO-C4X-157736 |
| Molecular Formula | C11H12N4O3S3 |
| Molecular Weight | 344.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Cefazolin Impurity 36 (CAS CATO-C4X-157736), a pharmacopoeial impurity reference standard (molecular formula C11H12N4O3S3, MW 344.43 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Cefazolin Impurity 36 (C11H12N4O3S3) 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 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 344.43 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.
As a certified reference material (CRM), Cefazolin Impurity 36 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.
Physical & Chemical Properties
| Molecular Formula | C11H12N4O3S3 |
| Molecular Weight | 344.43 g/mol |
| Purity | 97%+ |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 3 |
Related Cefazolin Standards
- Cefazolin EP Impurity A (CAS 30246-33-4)
- 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)
- Cefazolin Impurity 70 (CAS CATO-C4X-157770)
- Cefazolin Impurity 85 (CAS CATO-C4X-157785)
Recommended Standards
- Tiapride EP Impurity D (CAS 63484-11-7)
- Mianserin EP Impurity B (CAS CATO-C4X-13698)
- Abrocitinib Impurity 12-d4 (CAS CATO-C4X-288413)
- Mianserin Hydrochloride EP Impurity B (CAS CATO-C4X-136930)
- Rosuvastatin Impurity 256 (CAS 1422954-13-9)
- Fenofibrate Impurity 16 (CAS CATO-C4X-164316)
- Allisartan Isoproxil Impurity 30 (CAS CATO-C4X-321730)
- Guanfacine-13C,15N3 Hydrochloride (CAS 1261393-21-8)
- n-(Sec-butyl)-4-oxo-4h-pyrido[1,2-a]pyrimidine-3-carboxamide (CAS 1089998-19-5)
- 4-(((4'-Methoxy-[1,1'-biphenyl])-4-sulfonamido)methyl)benzoic acid (CAS 885269-44-3)
- 6-(4-Methylbenzyl)pyrimidine-2,4(1H,3H)-dione (CAS 19188-51-3)
- 6-(2-Chloropropanoyl)-4-methyl-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 878617-62-0)
- 2-(2,3-Dihydro-1H-inden-1-ylidene)acetic acid (CAS 4483-48-1)
- Semaglutide impurity 215 (CAS CATO-C4X-2226215)
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