Studies on v-triazoles. Part II. Synthesis of 9-oxo-lH,9H-benzopyrano [2,3-d]-v-triazoles

R&D Labs maybe for 344242-96-2

• Changsha Yihai Chemical Technology Co.,ltd

  website:http://www.cs-yihai.com/

  Contact:0731- 85620465

  Address:Room 23005, unit 2, the northern building of Xiangsong international building , NO.259 Shaoshan Road , Changsha , Hunan, China.(mainland)

• Xinchang Yueding Chemical Co., Ltd.

  Contact:86-571-56926323

  Address:NO.90 BEIMENCHENGWAI CHENGGUAN TOWN XINCHANG

• Shanghai Science Peptide Biological Technology Co.,ltd

  website:http://www.scipeptide.com

  Contact:+86-21-51099675

  Address:No.8 Changyang Rd

• Shanghai Maxchemco Chemical Industry Co., Ltd.

  Contact:(86)21-51079223

  Address:No.1305-8, B241, the Ecust Park, Huajing Road, Xuhui District, Shanghai

• Chengda Pharmaceuticals Co., Ltd.

  Contact:+86-573-84601188

  Address:hengshan Road 5# in Jiashan, zhejiang