Shangyu Sanwei Chemical Co., Ltd.
Profile: Shangyu Sanwei Chemical Co., Ltd. offers chemical products such as 1,2-benzisothiazolin-3-one, zinc pyrithione, 4-nitrobenzoic acid, carbohydrazide and 2,2'-dithiosalicylic acid. The 4-nitrobenzoic acid is a white or light yellow crystal with a melting point of 239-242°C. The carbohydrazide is a white thin column crystal which dissolves in water.