Photolysis of 4 amino, 4 alkoxy and 4 hydroxy 2,3 dimethyl 1 phenyl 3 pyrazolin 5 ones

R&D Labs maybe for 21683-57-8

• Tianjin Jingye Fine Chemicals Co., Ltd.

  Contact:+86-15722078107; +86-22-26911407

  Address:Bohua Fine Chemicals Base of Petrochemical Industry Park, Nanhuan Road, Dagang District, Tianjin, 300271, P. R. China

• Lonzeal Pharmaceuticals Co., Ltd.

  website:http://www.lonzeal.com

  Contact:+86-13381011962

  Address:RM 801, Yue MOMA, No. 26 Anningzhuang Rd. Haidian District, Beijing, China

• Quhua Zhongxing Refrigeration Technology Co.,Ltd.

  Contact:+86-5708886618

  Address:318 Bulding 2, No.866 Quhua Rd.,Kecheng District

• Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd

  website:http://www.jlpharms.com

  Contact:86-571-86982636

  Address:Rm A606, Fuyi Center, jianqiao street

• Linyi Shengxin Pharmaceutical R&D Co., Ltd

  Contact:+86-18653953873

  Address:West First of Yufeng Road, Yishui County