Cephalexin Sulfoxide Impurity 31 CAS 74708-55-7
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 74708-55-7 |
| Molecular Formula | C16H17N3O5S |
| Molecular Weight | 363.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Cephalexin Sulfoxide Impurity 31 (CAS 74708-55-7), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C16H17N3O5S. Molecular weight: 363.39 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C16H17N3O5S |
| Molecular Weight | 363.39 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cephalexin Standards
- Cephalexin Oxide Impurity 1 (CAS 56193-21-6)
- Cephalexin Impurity 42 (CAS 52210-38-5)
- Cephalexin Impurity 15 (CAS 36114-06-4)
- Cephalexin Impurity 13 (CAS 1323247-65-9)
- Cephalexin Impurity 19 (CAS CATO-C4X-126119)
- Cephalexin-d5 Hydrate (CAS CATO-CCHM703163)
- Cephalexin-d5 (CAS CATO-C4X-12611)
- Cephalexin-d5 (CAS 2101505-56-8)
Recommended Standards
- Omeprazole Impurity 11 (CAS CATO-C4X-125511)
- Torasemide Impurity 44 (CAS CATO-C4X-183644)
- Emtricitabine Impurity 36 (CAS CATO-C4X-123236)
- Terbutaline Impurity 79 (CAS CATO-C4X-118379)
- Baclofen EP Impurity C (CAS 35271-74-0)
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- 6-Chloro-2-(methylthio)pyrimidine-4-carboxamide (CAS 6301-33-3)
- 3,4-Dimethyl-5-(methylsulfamoyl)benzoic acid (CAS 851168-79-1)
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- 103244-41-3 Insulin-like Growth Factor-II fragment 33-40 Ser-Arg-Val-Ser-Arg-Arg-Ser-Arg (CAS 103244-41-3)
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 13829788188 / jacky.chen@cato-chem.com