在线观看视频免费完整版,人人超人人超碰超国产香蕉,国产色综合色产在线视频,欧洲亚洲色视频综合在线,欧洲亚洲色视频综合在线

№D004
CAS Rn:【2682-45-3】
Molecular weight: 199.27
Simple formula: C₁₂H₉NS
Chemical structure formula:
SPECIFICATIONS:
Appearance : crystal
Colour : light yellow
Purity : 99.0% min (HPLC)
Loss on drying : 0.5% max
Packing : In 25kg net drum with PE liners