Erythromycin EP Impurity E CAS 33396-29-1
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 33396-29-1 |
| Molecular Formula | C37H65NO12 |
| Molecular Weight | 715.91 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Erythromycin EP Impurity E (CAS 33396-29-1) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C37H65NO12. Molecular weight: 715.91 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C37H65NO12 |
| Molecular Weight | 715.91 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 1 |
Related Erythromycin Standards
- Erythromycin EP Impurity D (CAS 23893-13-2)
- Erythromycin EP Impurity F (CAS 105882-69-7)
- Erythromycin Impurity 53 (CAS CATO-C4X-100153)
- Erythromycin B rearranged derivatives (CAS CATO-C4X-100170)
- Erythromycin C rearranged derivatives (CAS CATO-C4X-100171)
- Erythromycin thiocyanate impurity B rearranged derivative (CAS CATO-C4X-100174)
- Erythromycin B (CAS 527-75-3)
- Erythromycin EP Impurity B (CAS 992-62-1)
Recommended Standards
- 10,11-Anhydroerythromycin A (CAS 40554-78-7)
- (3S,3aR,6aS)-Hexahydrofuro[2,3-b]furan-3-ylcarbonyl Darunavir (CAS 1546918-97-1)
- DPP48-Br (CAS 1454609-37-0)
- Gadoxetate Impurity 9 (CAS CATO-C4X-26189)
- Brivaracetam Impurity 214 (CAS CATO-C4X-2007214)
- tert-butyl (3S)-3-amino-3-methylpyrrolidine-1-carboxylate (CAS 1613721-23-5)
- 2,4-Dipropoxybenzoic acid (CAS 695812-18-1)
- D-Glucitol-2- (CAS 287100-73-6)
- 2-Chloro-N-(4-(dimethylamino)cyclohexyl)-N-isopropylacetamide (CAS 1353952-43-8)
- Lixisenatide (CAS 320367-13-3)
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