9-Substituted 4,9-dihydropyrano[3,4-b]indol-1(3H)-ones-synthesis and conversion into 2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indoles

R&D Labs maybe for 112821-54-2

• Shifang Taifeng New Flame Retardant Co., Ltd

  Contact:02884721008

  Address:tingjiang industrial park, hefeng town

• Changsha Nutritopper Bio Technology Co.,Ltd.

  Contact:+86-731-87803543

  Address:East 1st Street, Baima Road, Ningxiang County

• Sichuan WeiKeqi Biological Technology Co., Ltd.

  Contact:86-028-81700200

  Address:sichuan Chengdu Qingjiang Zhonglu 63号

• Wuhan Shengmao Corp

  website:http://www.shengmaochem.com

  Contact:86-27-82853423, 82819281

  Address:Rm 202, A Unit Huaqiao Building No. 2, Lihuangpi Road, Wuhan, China

• Shanghai WinTide BioTechnology Co.,Ltd

  Contact:86-21-37100630

  Address:No. 908 Yunhe Road, Fengxian district, Shanghai