日本三人交三人配_黄色电影小说图片_国产精品18毛片一区二区_性做爰的免费视频_777影院理伦片片,三级不卡视频,亚洲第一久久久,亚州一区二区

№A508
CAS Rn:【22190-33-6】
Molecular weight: 198.06
Simple formula: C₈H₈BrN
Chemical structure formula:
SPECIFICATIONS:
Appearance : Crystals or crystalline powder
Colour : Celadon
Purity : 98.0% min (HPLC)
Melting point : 36-40℃
Loss on drying : 0.5% max
Packing : In 25kg net drum with PE liners