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

№A001
CAS Rn:【120-72-9】
Molecular weight: 117.15
Simple formula: C₈H₇N
Chemical structure formula:
SPECIFICATIONS:
Appearance : crystalline powder
Colour : White
Purity : 99.0% min (HPLC)
Melting point : 51-53℃
Loss on drying : 0.5% max
Packing : In 25kg net drum with PE liners