Odorless CAS 81103-11-9 Clarithromycin Raw Material For Medicine Manufacturing

Basic Information
Place of Origin: CHINA
Brand Name: MOSINTER
Certification: COA
Model Number: Veterinary Medicine API - 30
Minimum Order Quantity: 1KG
Price: Negotiation
Packaging Details: Aluminum foil bag, fiber can, kraft paper bag, plastic drum
Delivery Time: Within 7 days
Supply Ability: Can be customized according to customer requirements
Detail Information
Name: Clarithromycin CAS: 81103-11-9
Appearance: Powder Molecular Formula: C38H69NO13
Molecular Weight: 747.95 Melting Point: 217-220°C
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Product Description

Clarithromycin CAS 81103-11-9 Pharmaceutical Grade Chemicals




White crystalline powder or colorless acicular crystal, odorless, bitter taste.More soluble in chloroform or acetone, slightly soluble in ethanol, ether or methanol, almost insoluble in water.Achromatic acicular crystals were obtained from chloroform isopropyl ether (1:2)




Items Specifications Results
Appearance White to almost white crystalline powder white powder
Solubility Soluble in acetone;slightly soluble in dehydrated alcohol,in methanol, Conforms
and in acctonitrile,and in phosphate butter at PH values of 2 to5;
practically insoluble in water
Identification IR:conforms to the spectrum of clarithromycin RS Conforms
Specific optical rotation -94.--102.(anhydrous substance,1 -98
0mg/ml methylene chloride)
Sulphated ash ≤ 0.2% <0.01%
Appearance of solution Clear or not more opalescent than reference suspension II Conforms
and not more intensely coloured than reference solutionY7
Crystallinity Meet the requirements Conforms
pH 8.0-10.0 8.7
Water ≤ 2.0% 0.35%
Related substances (1)any single impurity ≤ 1.0% 0.65%
(2)any impurities not more than 4 impurities 1
greater than 0.4%
(3)total impurities ≤ 3.5% 2.00%
Heavy metals ≤ 0.002% 2.00%
Residul solvents Ethanol ≤ 5000ppm Not detected
Pyridine≤220ppm Not detected
Assay (on dried basis ) 96.0% ~ 102.0%(anhydrous substance) 97.30%
Conclusion It complies with USP38 standard.



1. Macrolide antibiotic, A derivative of erythromycin, changed the OH group on the 6th position of erythromycin A to OCH3, namely clarithromycin.It is effective against gram-positive and negative bacteria, chlamydia and mycobacterium, and can effectively inhibit all pathogenic bacteria of respiratory system.Stable stomach acid, good oral absorption, high blood concentration, long blood half-life.Its use and erythromycin similar to respiratory tract, urinary tract, skin, ear, nose and throat and other effective infections.

2. It is a macrolide antibiotic, used to treat upper and lower respiratory tract infection, subcutaneous soft tissue infection, etc

3. Other apis


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