国产欧美日韩在线视频,纸牌屋第一季在线观看高清完整版,春光乍泄电影未删减完整版免费观看,av福利在线免费观看,一区二区不卡高清,国产又粗又硬又大爽,91挑色欧美

Weinan Huifeng New Material Technology Co., Ltd.

1-Hydroxybenzotriazole

1-Hydroxybenzotriazole

Chemical name: 1-Hydroxybenzotrizole
CAS NO.: 2592-95-2
Molecular formula: C6H5N3O
Molecular weight: 135.13
Structural formula:
Properties: almost white crystal, purity 99%

Packaging: 25㎏ fiber can lined with double layer plastic bag

To use: polypeptide condensating agent


【Return】