Erythromycin EP Impurity I（Erythralosamine） CAS 546-57-6
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 546-57-6 |
| Molecular Formula | C29H49NO8 |
| Molecular Weight | 539.70 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Erythromycin EP Impurity I（Erythralosamine） (CAS 546-57-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C29H49NO8. Molecular weight: 539.70 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C29H49NO8 |
| Molecular Weight | 539.70 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 11-(4-(Dimethylamino)phenyl)-13-methyl-17-(2-methyl-1,3-dioxolan-2-yl)-1,2,6,7,8,11,12,13,14,15,16,17-dodecahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxolane]-5,17(4H)-diol (CAS 126690-41-3)
- (10-(2,5-Dihydroxy-3,4-dimethylphenyl)decyl)triphenylphosphonium (CAS 1147011-72-0)
- 1129403-56-0 GLY8ABW25V Amcasertib Amcasertib [USAN] UNII-GLY8ABW25V 1H-Pyrrole-3-carboxamide, N-(2-(diethylamino)ethyl)-5-((1,2-dihydro-2-oxo-5-(2-phenyl-4-thiazolyl)-3H-indol-3-ylidene)methyl)-2,4-dimethyl- Amcasertib [INN] BBI503 Amcasertib [USAN:INN] (CAS 1129403-56-0)
- Cefoperazone EP Impurity B (CAS 711598-76-4)
- Rosuvastatin Impurity 111 (CAS 404958-68-5)
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- 4-Amino-N-hydroxy-3-nitrobenzimidamide (CAS 1256486-31-3)
- Des-Gln24-Tirzepatide (CAS CATO-CPTD788949)
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