Heterocyclic Systems; 11. A Novel Transformation of 4-Oxo-4H-1-benzopyran-3-carboxaldehydes to 3-Acetyl-5-(2-hydroxybenzoyl)-2-methylpyridines

R&D Labs maybe for 80472-50-0

• Hangzhou Neway Chemicals Co., Ltd.

  Contact:+86-571-85095566

  Address:Room 803, Qinglian Bldg, No 139 Qingchun Road, Hangzhou, Zhejiang China

• Shanghai Hongbang Medical Technology CO.,. Ltd

  Contact:13671516988 /18917636693

  Address:Room1, No67 Building, Yongde Road369, Wujing Town, Minhang Districy, Shanghai CIty, China.

• Guangzhou Flower's Song Fine Chemical CO,. Ltd

  Contact:+86-20-87475199

  Address:No.12, Fenghuang 3 Road, Jiulong Industrial Park, Luogang District, Guangzhou. China

• Nanjing Habo Medical Technology Co., Ltd.

  Contact:025－85769882

  Address:No.108. Ganjiabian east. Qixia District .Nanjing

• Zhangjiagang Jianing Import & Export Co.,Ltd.

  Contact:086-512-55379012 13913607595

  Address:NO.1 Guotai North Road Zhangjiagang Economic Development Zone,215600,Jiangsu,China