Cefmetazole Impurity 67 CAS CATO-C4X-150767
| CAS No. | CATO-C4X-150767 |
| Molecular Formula | C26H33N13O7S6 |
| Molecular Weight | 832.01 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Cefmetazole Impurity 67 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.
CATO supplies Cefmetazole Impurity 67 (CAS CATO-C4X-150767), a pharmacopoeial impurity reference standard (molecular formula C26H33N13O7S6, MW 832.01 g/mol) used for the identification and quantification of trace impurities in APIs.
Cefmetazole Impurity 67 (C26H33N13O7S6) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C26H33N13O7S6 |
| Molecular Weight | 832.01 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 13 |
| Sulfur Atoms | 6 |
Related Cefmetazole Standards
- Cefmetazole Impurity 68 (CAS CATO-C4X-150768)
- Cefmetazole Impurity 70 (CAS CATO-C4X-150770)
- Cefmetazole Impurity 74 (CAS CATO-C4X-150774)
- Cefmetazole Impurity 72 (CAS CATO-C4X-150772)
- Cefmetazole Impurity 71 (CAS CATO-C4X-150771)
- Cefmetazole Impurity 69 (CAS CATO-C4X-150769)
- Cefmetazole Impurity 73 (CAS CATO-C4X-150773)
- Cefmetazole Impurity 32 (CAS CATO-C4X-150732)
Recommended Standards
- H-Arg-Val-Leu-psi(CH2NH)Phe-Glu-Ala-Nle-NH2 (CAS 167875-35-6)
- Tirzepatide Impurity 9 (CAS CATO-C4X-32409)
- Rifampicin impurity 11 (CAS CATO-C4X-145611)
- 1-Docosahexaenoin-2-oleoyl 3-Phosphocholine (CAS 99265-02-8)
- Fosaprepitant Impurity 17 (CAS 24021-90-7)
- Aprepitant Impurity N2 HCl (CAS 327623-37-0 (free base))
- Cefepime EP Impurity D Sodium Salt (CAS 78172-35-7)
- (S)-2-((3-((((benzyloxy)carbonyl)amino)methyl)oxetan-3-yl)amino)-4-(tert-butoxy)-4-oxobutanoic acid (CAS 2209840-31-1)
- Dutasteride EP Impurity F (CAS CATO-C4X-11036)
- Bisoprolol Impurity 94 (CAS CATO-C4X-124794)
- 2-Chloroacridine-9(10H)-thione (CAS 30558-73-7)
- 6-Azaspiro[3.4]Octane-7-carboxylic acid (CAS 1934361-21-3)
- 5-Chloro-4H-1,2,4-triazole-3-carboxamide (CAS 54671-66-8)
- Semaglutide impurity 235 (CAS CATO-C4X-2226235)
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