The chemistry of 2H-3,1-benzoxazine-2,4-(1H)-dione (isatoic anhydride); 131. Facile preparation of 4-oxoquinoline-2-acetic acid derivatives

R&D Labs maybe for 89545-05-1

• Tangshan Wisdom Trading Co.,Ltd

  Contact:86 315 2222979

  Address:No.41 BeiXinXi Road, Yangguang building 1-1102 , Tangshan, Hebei, China

• SICHUAN ZHONGBANG NEW MATERIAL CO., LTD

  website:http://www.zhongbangst.com

  Contact:86-830-2585019

  Address:sichuan,china

• Suzhou Kangrun Pharmaceutical, Inc

  Contact:86-512-63912376，63913329

  Address:Building 2, No. 2358 ,Chang'an Rd, Wujiang Economic Development Zone Pioneering park, china

• ZHANGJIAGANG FREE TRADE ZONE YONG HAN INTERNATIONAL TRADING CO., LTD(expird)

  Contact:86 512 57910558

  Address:qianjin M road

• Changzhou Qidi Chemical Co., Ltd

  website:http://www.czqdhg.com/

  Contact:86-519-83382137

  Address:128-1-16# HuaYuan Street,Hutang Town,Wujin District,Changzhou City,P.R.China.