Erythromycin A Enol Ether

红霉素A烯醇醚

Also known as: EM 523, Erythromycin impurity B, 6-Deoxy-9-deoxo-8,9-didehydro-6,9-epoxyerythromycin, 6,9-Epoxy-8,9-didehydro-9-deoxo-6-deoxyerythromycin, 9-Deoxo-6-deoxy-6,9-epoxy-8,9-didehydroerythromycin, 6β,9-Epoxy-8,9-didehydro-9-deoxo-6-deoxyerythromycin, (6R)-6-Deoxy-9-deoxo-6,9-epoxy-8,9-didehydroerythromycin, 11-(4-Dimethylamino-3-hydroxy-6-methyl-tetrahydro-pyran-2-yloxy)-5-ethyl-3,4-dihydroxy-9-(5-hydroxy-4-methoxy-4,6-dimethyl-tetrahydro-pyran-2-yloxy)-2,4,8,10,12,14-hexamethyl-6,15-dioxa-bicyclo[10.2.1]pentadec-1(14)-en-7-one, 8,9-anhydroerythromycin A, 8,9-anhydroerythromycin A 6,9-hemiacetal, 8,9-anhydroerythromycin A 6,9-hemiketal, 8,9-anhydroerythromycin 6,9-hemiketal, Erythromycin Impurity 5, erythromycin hemiketal

Erythromycin A Enol Ether (CAS 33396-29-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C37H65NO12 and a molecular weight of 715.91100 g/mol. It is also known as EM 523, Erythromycin impurity B and 6-Deoxy-9-deoxo-8,9-didehydro-6,9-epoxyerythromycin. Key properties include a melting point of 133-135ºC, a boiling point of 791.6ºC at 760mmHg, a density of 1.2g/cm3 and a flash point of 432.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

33396-29-1

Jingsj CID

J-1970837-5

Molecular Formula

C₃₇H₆₅NO₁₂

Chinese Name

红霉素A烯醇醚

Molecular Weight

715.91100 g/mol

Category

Alcohols

Last updated

8/21/2026