A convenient synthesis of 7-aryl-2,4-dimethoxy-5-oxo-5H-pyrano[4,3-d]pyrimidines

R&D Labs maybe for 123420-12-2

• Xiamen XM-Innovation Chemical Co., Ltd

  Contact:+86-592-3216205

  Address:Unit Q, 11/F, No.1 Office Building, Wuyuan Bay Business Center, Huli District, Xiamen City, Fujian Province, P.R.C

• Shanghai Micro-mega Industry Co., Ltd.

  Contact:0086-21-34628682;57153848

  Address:Rm413,No.413,West Meilong Road, Minhang District,Shanghai P R China

• TIANJIN ZHONGXIN CHEMTECH CO.,LTD.

  Contact:86-022-66880623

  Address:FINANCIAL STREET WEST BLK 7, #308, NO.52 XINCHENG WEST ROAD, TEDA, TIANJIN, P.R.CHINA

• ShiJiaZhuang Dowell Chemical Co.,Ltd.

  website:http://www.dowechem.com

  Contact:+86-13463963265

  Address:Xiyangling village, high tech Zone, Shijiazhuang，Hebei, China

• Shandong Jusage Technology Co.,Ltd.

  Contact:86-13406130167

  Address:No.20,North Ride No.9 Road, Guangrao Economic Development Zone, Shandong Province