Cefmetazole Impurity 31 CAS 55862-52-7
| CAS No. | 55862-52-7 |
| Molecular Formula | C4H6N4O2S |
| Molecular Weight | 174.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Cefmetazole Impurity 31 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.
Cefmetazole Impurity 31 (CAS 55862-52-7) is a certified pharmaceutical impurity reference standard with the molecular formula C4H6N4O2S and a molecular weight of 174.18 g/mol.
The molecular framework of Cefmetazole Impurity 31 (C4H6N4O2S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C4H6N4O2S |
| Molecular Weight | 174.18 g/mol |
| Purity | 97%+ |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Cefmetazole Standards
- Cefmetazole Impurity 58 (CAS CATO-C4X-150758)
- Cefmetazole Impurity 48 (CAS 310466-38-7)
- Cefmetazole Impurity 21 (CAS 52069-55-3)
- Cefmetazole Impurity 46 (CAS 17347-32-9)
- Cefmetazole Impurity 47 (CAS 4923-87-9)
- Cefmetazole Impurity 11 (CAS 55817-29-3)
- Cefmetazole impurity 75 (CAS 62671-38-9)
- Cefmetazole Impurity 8 (CAS CATO-C4X-15078)
Recommended Standards
- (5-Methyl-[1,3,4]oxadiazol-2-ylsulfanyl)-acetic acid 0403AF 842965-64-4 C5H6N2O3S (CAS 842965-64-4)
- 4-(sec-Butoxy)-4-oxobutanoic Acid (CAS 100405-37-6)
- methyl 4-methoxy-1,2,5-thiadiazole-3-carboxylate (CAS 89322-93-0)
- Ethyl cis-5-hydroxy-tetrahydro-pyran-2-carboxylate (CAS 100514-02-1)
- Dacomitinib Impurity 12 (CAS CATO-C4X-208612)
- Glipizide EP Impurity G (CAS 33288-74-3)
- Bucladesine Impurity 10 (CAS CATO-C4X-202610)
- Tert-butyl n-{[2-(hydroxymethyl)cyclohexyl]methyl}carbamate (CAS 1490171-95-3)
- Methyl 3-(4-amino-3-methylphenoxy)benzoate (CAS 946786-12-5)
- 1-(4-Bromo-3-chlorophenyl)pyrrolidine (CAS 1291487-20-1)
- Benzyl tert-butyl trans-cyclohexane-1,4-diyldicarbamate (CAS 296270-92-3)
- Sunitinib Impurity 47 (CAS 56341-39-0)
- 3,5-Dichloro-2-methylpyridin-4-ol (CAS 1823944-64-4)
- KALA Amphipathic Peptide (CAS 187987-64-0)
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