Clarithromycin EP Impurity B CAS 299409-85-1
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 299409-85-1 |
| Molecular Formula | C37H67NO13 |
| Molecular Weight | 733.93 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Clarithromycin EP Impurity B (CAS 299409-85-1), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C37H67NO13. Molecular weight: 733.93 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C37H67NO13 |
| Molecular Weight | 733.93 g/mol |
| Purity | >90% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Clarithromycin Standards
- Clarithromycin EP Impurity D (CAS 101666-68-6)
- Clarithromycin EP Impurity N (CAS 144604-03-5)
- Clarithromycin impurity 14 (CAS 138109-92-9)
- Clarithromycin (CAS 81103-11-9)
- Clarithromycin EP Impurity J(Roxithromycin EP Impurity C) (CAS 111321-02-9)
- Clarithromycin EP Impurity M (CAS 127182-43-8)
- Clarithromycin-N-methyl-d3 (CAS 959119-22-3)
- Clarithromycin-D3 (CAS 959119-17-6 (unlabeled))
Recommended Standards
- Erythromycin EP Impurity M (CAS 616234-56-1)
- Erythromycin EP Impurity J (CAS 105900-46-7)
- EH44 (CAS 1879076-81-9)
- Lincomycin Impurity 10 (CAS CATO-C4X-134210)
- Alogliptin Impurity 92 (CAS CATO-C4X-109992)
- 1-(2,2-dimethylpropanoyl)-2,3-dihydro-1H-indole-5-carboxylic acid (CAS 1097098-94-6)
- 2-(2,4-Dichlorophenyl)-5-(trifluoromethyl)-2H-1,2,3-triazole-4-carboxylic acid (CAS 1707576-37-1)
- 1-(2-Cyano-4-fluorophenyl)piperidine-3-carboxylic acid (CAS 1000339-80-9)
- (RS)-Selegiline hydrochloride CRS (CAS 14611-51-9)
- Semaglutide Impurity 10 (CAS CATO-C4X-222610)
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