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

• ShenZhen InnoSyn Biotech Co.,Ltd

  website:http://www.innosyns.com

  Contact:+86-755-28351685

  Address:Floor 5 & 6, Building A1, HAIKEXING Strategic Innovative Industrial Park, 16 BaoShan Road, PingShan District

• King Brother Chem Co., Ltd

  website:http://www.uvchemkeys.com

  Contact:0086-021-58785816

  Address:RM2607 Building No.1 Guosheng, Lane 388, Zhongjiang Road, Putuo District, Shanghai 200062 China

• Ningbo Inno Pharmchem Co., Ltd.

  Contact:86-574-87319282

  Address:6F-5,NO.163 RUIQING RD.,NINGBO 315000 CHINA

• HUNAN OUYA BIOLOGICAL CO.,LTD

  Contact:+8613400661290

  Address:No 908,Kangwan Rd, Liuyang Economic

• Zhushan County Tianxin Pharmaceutical & Chemical Co., Ltd.

  Contact:0086-719-4224892

  Address:Tutang Road, Chengguan Town, Zhushan County, Hubei Province