Elimination of a Good Leaving Group from the 3'-Position of a Cephalosporin Need Not Be Concerted with β-Lactam Ring Opening: TEM-2 β-Lactamase-Catalyzed Hydrolysis of Pyridine-2-azo-4'-(N',N'-dimethylaniline) Cephalosporin (PADAC) and of Cephaloridine

R&D Labs maybe for 38894-49-4

• Nanjing Vincero International Trading Co.,Ltd

  Contact:8618936897229

  Address:NO.68, ZhuShan Road, JiangNing WanDa Plaza, Building E Room 1703

• hangzhou verychem science and technology co.ltd

  website:http://www.verypharm.com

  Contact:+86-571-88162785; 88162786

  Address:F1502, 753 Shenhua road, Hangzhou, China

• Jiangsu Dacheng Pharmaceutical and Chemical Co.,Ltd

  Contact:+86-0517-87036900

  Address:Chuzhou Chemical park, Huai'an, Jiangsu Province

• Yuan Shi(SuQian)Biotechnology Co.,Ltd

  website:http://www.yuanshibio.com

  Contact:+86-527-84226672

  Address:jiangsu suqian

• Xian Lyphar Biotech Co., Ltd.

  Contact:0086-29-89196322

  Address:North of the Fifth Keji Road, Hi-Tech Industrial Zone, Xi'an City, Shaanxi Province, China