Dihydroavermectin B1a CAS 70161-11-4

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Model: MOS70161-11-4
Brand: MOSINTER
CAS: 70161-11-4
Molecular formula: C48H74O14
Molecular weight: 875.0928
Boiling point: 940.4°C at 760 mmHg
Refractive index: 1.564
Density: 1.23g/cm3
Flash point: 267.3°C
Vapour Pressur: 0mmHg at 25°C
Category:

Dihydroavermectin B1a (CAS: 70161-11-4)

ITEM STANDARD RESULT
Appearance White or yellowish-crystalline powder White crystalline powder
Identification IR: compare with that of CRS standard

HPLC: the retention time for it compare 

with that of CRS standard

 Complies
Water  ≤ 1.0% 0.24%
Appearance of solution Clear and not more colored than BY7 Clear 
Related substances Individual impurities ≤ 2.5% 1.95
Any other individual impurities ≤ 1% 0.62 0.24 0.15 0.35 0.16 0.53 0.16
Total impurities ≤ 5% 4.55
Detection limit ≤ 0.05% 0.05%
Ethanol ≤ 5% 3.95%
 Formamide ≤ 3% 2.70%
Heavy metals ≤ 0.002% < 0.001%
Sulphated ash ≤ 0.1% 0.05%
Assay (on dried basis) 95% ~102% 95.83%
H2B12 ≥ 90% 97%
specific optical rotation -17° ~ -20° -18°

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