91九色免费视频,激情丁香婷婷,国产精品视频首页,国产大尺度未删减完整电影,韩国三级未删减版视频,色戒完整版分析,福利电影一区二区三区

Weinan Huifeng New Material Technology Co., Ltd.

2,4,6,8-Tetrahydroxy-Pyrimido-(5,4D)Pyrimidine

2,4,6,8-Tetrahydroxy-Pyrimido-(5,4D)Pyrimidine

Alias: 1,5-Dihydropyrimido(5,4-d)pyrimidine-2,4,6,8(3H,7H)tetrone; 2,4,6,8-Tetrahydroxy-pyrimido[5,4-d]pyrimidine
Properties: purity ≥60% light green powder
To use: medical intermediate  
Packaging: 25fiber can lined with plastic bag


【Return】