Erythromycin Stearate CAS 643-22-1
Purity >95%In StockPharmaceutical Standards
| CAS No. | 643-22-1 |
| Molecular Formula | C37H67NO13 C18H36O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Erythromycin Stearate (CAS 643-22-1) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C37H67NO13 C18H36O2. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C37H67NO13 C18H36O2 |
| Molecular Weight | 1018.42 g/mol |
| Purity | >95% |
| 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.) | 1957 |
| Nitrogen Atoms | 1 |
Related Erythromycin Standards
- Erythromycin EP Impurity F (CAS 105882-69-7)
- Erythromycin EP Impurity J (CAS 105900-46-7)
- Erythromycin Impurity 45 (CAS 1094780-33-2)
- Erythromycin (CAS 114-07-8)
- Erythromycin Compound M3 (CAS 119665-62-2)
- Erythromycin Impurity N8 (CAS 119665-78-0)
- Erythromycin Ethyl Succinate (CAS 1264-62-6)
- Erythromycin Ethylsuccinate-13C-d3 (CAS 1264-62-6 (non-labelled))
Recommended Standards
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- 5-(Trifluoromethyl)-1-[5-(trifluoromethyl)pyridin-2-yl]-1h-pyrazole-4-carboxylic acid (CAS 1013794-64-3)
- Semaglutide Impurity 145 (CAS CATO-C4X-2226145)
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