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,采用异烟酸———吡唑啉光度法。

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

产芳胺、吡唑和苯骈咪唑类颜料及中间体。