Erythromycin 2'-propionate dodecyl sulfate

Empirical Formula: C₅₂H₉₇NO₁₈S
Molecular Weight: 1056.3875 
EINECS: 222-532-4
Flash Point: 454.4 °C
Enthalpy of Vaporization: 136.89 kJ/mol
Boiling Point: 827.7 °C at 760 mmHg
Vapour Pressure: 8.87E-32 mmHg at 25 °C
Melting point: 135-140 °C
Appearance: Long needles
Structure of Erythromycin estolate (CAS NO.3521-62-8):
                         
IUPAC Name: [(2S,3R,4S,6R)-4-(Dimethylamino)-2-[[(1R,2R,4R,6R,7R,8S,9R,12R,13S,14S)-9-ethyl-2,7,8-trihydroxy-13-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-2,4,6,8,12,14-hexamethyl-5,11-dioxo-10-oxacyclotetradec-1-yl]oxy]-6-methyloxan-3-yl] propanoate ; Dodecyl hydrogen sulfate
Product Category of Erythromycin estolate (CAS NO.3521-62-8): Intermediates & Fine Chemicals;Pharmaceuticals

 Erythromycin estolate (CAS NO.3521-62-8) has been used as an antibacterial agent and is often used for people who have an allergy to penicillins.

Hazard Codes: Xn,Xi
Risk Statements: 22-42/43-36/37/38 
R22:Harmful if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R42/43:May cause sensitization by inhalation and skin contact.
Safety Statements: 22-36-26 
S22:Do not breathe dust. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.

It is a macrolide antibiotic that has an antimicrobial spectrum similar to or slightly wider than that of penicillin. Erythromycin estolate (CAS NO.3521-62-8) inhibits the cytochrome P450 system, particularly the CYP3A4 isozyme, which can cause it to affect the metabolism of many different drugs. It is not recommended when using clindamycin containing products, even topical products such as duac or benzaclin. In general, the simultaneous use two different erythromycin derivatives should be avoided as drugs in this macrolide family share a common mechanism of action.