Furazolidone

Appearance: This product is a yellow powder or crystalline powder, odorless.
This product is slightly soluble in N, N-dimethylformamide and almost insoluble in water, ethanol, or ether.
Acidity: The pH value should be between 5.5 and 7.0.
Dissolved substances in ethanol: residual residue should not exceed 0.5%.
5-Nitrofurfural diacetate: not exceeding 1.0%.
Dry weight loss: not exceeding 0.5%.
Burning residue: not exceeding 0.2%
Heavy metals: not exceeding 20 parts per million.
Content: should be between 97.0% and 103.0%.