Doramectin 95%min Pharmaceutical Veterinary for Antiparasitic made in china CAS NO.117704-25-3

doramectin

appearance

white or off white crystalline powder

identification

hplc:retention time of principal peak of sample conforms to that of reference standard

ir:spectrum of sample conforms to that of reference standard

specific optical rotation

(substance without water and residual solvents)

+55° ~ +65°

clarity&colour of solution

solution should be clear,and its colour depth isn't more than the by6

water

≤3.0%

heavy metals

≤20ppm

sulfated ash

≤0.1%

related substances

impurity1 : ≤0.8%

impurity2: ≤1.5%

impurity3: ≤1.2%

impurity4: ≤0.5%

impurity5: ≤1.0%

any impurity: ≤0.8%

total impurity: ≤5.0%

assay(substance without water and residual solvents)

≥95.0%

residual solvents

alcohol≤30000ppm

acetone≤5000ppm