Fenbendazole

CAS number: 43210-67-9

Molecular formula: C15H13N3O2S

molecular weight: 299.3476

Chemical structure:

Product Name 
Fenbendazole
Shelf life4 years
Test Specification Test result 
Appearance A white or almost white powder Almost white powder 
Identification Ir spectrum if sample complies with RS comforms
release substances 

Impurity A ≤0.5%

Impurity≤ 0.5% 

0.01% 

0.04%

loss on drying ≤0.5%0.14%
Heavy metals <20ppm< td="">complies
Sulphated ash ≤0.3%0.08%
Residual solvents 

Methanol: ≤ 3000ppm

Toluene≤890ppm

Xylene ≤2170ppm

Acetic acid ≤5000ppm

Ethanol ≤5000ppm

1715ppm

721ppm

4ppm

1400ppm

1400ppm


Assay on dries substancce 99.6%
conclusion :The product complies with the standard