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Veterinary
Avermectin
 
Technical Data Sheet
Chemical name:  Mixture of Avermectin B1a and Avermectin B1b
Moleculor Formula: C48H72O14;C47H70O14
Molecular Weight: (873.09);(859.06)
CAS#: 71751-41-2
 
Molecular Structure:
 
Specifications:
Items
Specifications
Results
Appearance
White to yellowish crystalline powder
Conforms
Identification
1.      IR : Corresponds with that of CRS standard
2.      HPLC: The retention time for H2B1a corresponds with that of standard preparation
Conforms 
Appearance of Solution
Clear and color less than BY7
Conforms
Acetone insoluble
0.2%
Conforms
PH
4.5 ~ 7.0
Conforms
Loss on Drying
2.0%
Conforms
Assay (HPLC,Anhydrous)
H2B1a 92.0%
H2B1a+H2B1b 97.0%
94.82%
99.9%
Conclusion
This conforms to standard of Enterprise
 
Properties: White to yellowish crystalline powder
Therapeutic Category:  Antiparasitic -- Antinematode drug (veterinary)
 
Storage: Sealed tightly and stored away from light in a cool and dry place
Packing:  In 25kg drums with plastic inner.
 
 
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