What is Doramectin

  • Author:Hubei Ocean Biotech Co,.LTd
  • Release on :2016-05-04
Doramectin is a 25-cyclohexyl group -5-O- demethylation to -25- (1-methylpropyl) avermectin A1a. Calculated on the anhydrous, containing doramectin (C50H74O14) not less than 95.0%. 

white or white crystalline powder, odorless, hygroscopic.
The goods in chloroform, methanol dissolved, very slightly soluble in water.
Specific rotation to take this product, accurately weighed, dissolved in chloroform and diluted quantitatively 10mg per 1ml solution containing assay (Appendix 36) according to the law, the specific rotation of + 58 ° to + 63 °. 

Identification :
(1) to take this product, add methanol 1ml each containing 10? G of the solution, according to spectrophotometry (Appendix 17) Determination of maximum absorption in the 245nm wavelength.
(2) chromatogram in the record the determination, the test sample peak retention time should be consistent with doramectin reference standard peak retention time.

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