CAS Number: 1264-62-6
Chemical Name: Erythromycin Ethyl Succinate
Molecular Formula: C43H75NO16
Molecular Weight: 862.05

CAS Number: NA
Chemical Name: 3''-N-Desmethyl-3''-N- (ethoxysuccinyl)erythromycin A
Molecular Formula: C42H73NO17
Molecular Weight: 864.04

CAS Number: 33442-56-7
Chemical Name: Erythromycin D
Molecular Formula: C36H65NO12
Molecular Weight: 703.90

CAS Number: 3225-82-9
Chemical Name: Erythronolide B
Molecular Formula: C21H38O7
Molecular Weight: 402.50