Item | Specification |
Appearance | White crystalline powder |
Identification | HPLC, IR |
Appearance of solution | The solution is clear and not more intensely colored than reference solution BY6 |
Water | ≤3% |
Heavy metal | ≤20ppm |
Sulphated Ash | ≤0.1% |
BHT | ≤2000ppm |
Related substance | Avermectin B1a≤1.5% |
Avermectin B1b≤1.0% | |
Avermectin B1a and Avermectin B1b≤2.0% | |
Total impurities NMT 5.0% | |
Residual solvent | Acetone≤5000ppm |
Ethanol≤30000ppm | |
Ethyl acetate≤5000ppm | |
Methanol≤3000ppm | |
Assay | ≥95%(on anhydrous and solvent free basis) |
Synonyms: 25-Cclohexyl-avermectin B1, Avermectin A1a
CAS No.: 117704-25-3
Quality: in house Molecular Formula: C50H74O14 Formula Weight: 899.11