国产女人高潮视频在线观看,亚洲综合欧美在线一区在线播放,中文字幕精品亚洲一区,欧美人与动牲猛交xxxxbbbb,把腿扒开做爽爽视频,性欧美暴力猛交69HD,国产精品免费AV片在线观看,日韩精品人妻系列无码专区,一本大道久久东京热无码AV,最近中文2019字幕第二页

Laurocapram (standard sample grade)
Chemical name: 1-dodecylazacycloheptan-2-one
Picture:
Structure formula:
Molecular formula: C18H35NO
Molecular weight: 281.48
Appearance: colorless to yellowish transparent and oily liquid
Specific gravity: 0.904-0.914
Refractive index: 1.4610-1.4720
Assay: ≥99%
Packing: 2-5g/piece (glass bottle)
Uses: This product can be used as standard sample to test laurocapram content by gas chromatography using an internal standard method.
BACK
Station navigation
Copyright(C)2023,Nanjing Longtan Fine Chemical Co., Ltd.  Supported by ChemNet ChinaChemNet Toocle Copyright Notice