Oxfendazole BP/EP made in china CAS NO.53716-50-0

characteristics

white or almost white powder

identification

practically insoluble in water,slightly soluble in ethanol(96%) and methylene chloride

ir identification

conforms with reference spectrum

related substances(hplc)

total impurities:≤3.0%

impurity a(fenbendazole): ≤1.0%

impurity b(peroxide): ≤2.0%

impurity c: ≤1.0%

impurity d: ≤1.0%

other unspecified impurities:≤0.1%

loss on drying

≤0.5%

sulphated ash

≤0.2%

assay（dried basis)

97.5%~100.5%

in-house specification

particle size

90%≤100µm

75%≤25µm

50%≤10µm

bulk density

——

polymorph

polymorph-a

residual solvents

methanol:≤600ppm

ethanol:≤200ppm

methyl formate:≤100ppm

microbiological purity

total aerobic microbial count:≤100cfu/g

total combined mold and yeast count:≤100cfu/g

control bacteria:p.aeruginosa absent in 10g of product.