... hydrocarbon and benzene.It present yellow or brown because of a small amount polymer containing hydrocyanic acid.Packing:package in ... condiment,pesticide,dyes,pigments and so on.It is a kind of organic intermediates using extensively. Purity not less than ... In addition, it can be used to synthesize various intermediates of pharmaceutical, pesticide, dye, pigment, such as triazole, anilidothiobiaole ...