Product Name: Relying on erythromycin CAS: 3521-62-8 Standard: National Standard Level: Medical grade Appearance: white powder Packing: 25/ cardboard drum detachable Ingredients: Relying on erythromycin Physical and chemical properties: white powder Category: Pharmaceutical raw materials Field: Bacteriostat Down product: DL-histidine Use: For penicillin-resistant Staphylococcus aureus infection and Staphylococcus aureus infection
Erythromycin 2′-propionate dodecyl sulfate Certificate of Analysis
Product name
Erythromycin 2′-propionate dodecyl sulfate
CAS No.
3521-62-8
Outer Packing
25kg/drum
Production date
20151201
Shelf life
20191201
Standard adopted
USP38
Items of analysis
Specification
Results
Description
white or almost white,crystalline powder
Conforms
Solubility
1/Practically insoluble in water. 2/Freely soluble in ethanol.3/Soluble in acetone,chloroform,alcohol.4/Practically insoluble in dilute hydrochloric acid.
Conforms
Odour
Odourless or practically odourless
Conforms
Identification
Infrared Adsorption:According to standard
Conforms
Crystallinity
Meets the requirements
Conforms
Melting point
132℃-138℃
133℃-135℃
PH
5.0-7.2
6.7
Water
NMT4.0% （K.Fischer）
2.9%
Free Erythromycin
NMT3.0%
0.3%
Residual solvents
Acctone: NMT0.5%(5000ppm)
N.D.
Assay
NLT 600ug of erythromycin per mg (On the anhydrous basis)
635ug/mg
Conclusion
Qualified
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