pyrazolone

The isonicotinic acid - pyrazolone light intensity method is currently applied to measure the prussiates in the water.

水中氰化物的测定,目前采用异烟酸———吡啉光度法。

specialized in the manufacturing of the acetoacet anilide derivatives,pyrazolone derivatives,benzimidazole de-rivatives and other fine chemical products.

生产芳胺、吡和苯骈料及中间体。