Benzylpenicillin Impurity 21(Mixture of Diastereomers) CAS 13057-98-2
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 13057-98-2 |
| Molecular Formula | C16H20N2O5S |
| Molecular Weight | 352.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Benzylpenicillin Impurity 21(Mixture of Diastereomers) (CAS 13057-98-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C16H20N2O5S. Molecular weight: 352.41 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C16H20N2O5S |
| Molecular Weight | 352.41 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Benzylpenicillin Standards
- Benzylpenicillin Potassium EP impurity E (CAS 11039-68-2)
- Benzylpenicillin EP Impurity E (CAS CATO-C4X-18995)
- Benzylpenicillin impurity 58 (CAS 493-39-0)
- Benzylpenicillin Impurity 10 (CAS 34104-15-9)
- Benzylpenicillin Potassium EP Impurity C (CAS 525-91-7)
- Benzylpenicillin Impurity 28 (CAS 4052-54-4)
- Benzylpenicillin Impurity 83 (CAS CATO-C4X-189983)
- Benzylpenicillin Impurity 84 (CAS CATO-C4X-189984)
Recommended Standards
- Etomidate Impurity 45 (CAS CATO-C4X-188445)
- N-Nitroso Gliclazide (CAS CATO-C4X-144913)
- Ampicillin Impurity 83 (CAS CATO-C4X-144383)
- N-Nitroso Ondansetron impurity 17 (CAS CATO-C4X-139417)
- Entecavir Impurity 29 (CAS CATO-C4X-107729)
- 3-CARBAMOYL-4-FLUOROBENZOIC ACID (CAS 1534121-96-4)
- 7-Bromo-2-methyl-1,2,3,4-tetrahydroisoquinolin-3-one (CAS 877265-10-6)
- 1-(4-Nitrophenyl)sulfonylpyrrolidine (CAS 175278-37-2)
- 4-(2-Chlorophenyl)-3-methyl-1-(2-phenoxyethyl)-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 860789-89-5)
- Peptide 433 (CAS CATO-CPTD788433)
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