91蝌蚪视频在线观看,美女内射视频WWW网站午夜,日韩高清无码免费,一级毛片在线免费看,97久久超碰极品视觉盛宴,午夜少妇精品视频小电影,九色综合伊人久久富二代,国产伦片中文免费观看
N,N'-dicyclohexylcarbodiimide


Rational Formula:
a) Mole. Form:C13H22N2
b) Structural Formula:

c) Relative Molecular Mass:206.33

Property & State:
It is white or light yellow crystal or transparent liquid with melting point: 32-36,boiling point: 154-156(1,47kPa);It dissolves in benzene, alcohol, ethyl ether, but not in water.

Index of Quality(Q/ZTH001-2008)

Name of Index
Index of Quality
High Grade
Grade I
Qualified
Appearance
White to light yellow crystal or transparent liquid White to light yellow crystal or transparent liquid White to light yellow crystal or transparent liquid
Content,%,≥
99.5
99.0
98.5
melting point(℃)
32-36
32-36
32-36
Acetone Insoluble Matter
None
None
None

Use:
This product is mainly used in amikacin, glutathione dehydrants, as well as in synthesis of acid anhydride, aldehyde, ketone, isocyanate; when it is used as dehydrating condensing agent, it reacts to dicyclohexylurea through short-time reaction under normal temperature.
This product can also be used in synthesis of peptide and nucleic acid. It is easy to use this product to react with compound of free carboxy and amino-group into peptide.
This product is widely used in medical, health, make-up and biological products, and other synthetic fields.

Packing:
It is packed in 25L or 220L plastic buckets with net content 20kg/bucket or 180kg/bucket or other specifications of packing on customers' request.

Notes for use :
It is irritant. When its vapor or liquid touched skin, it will led to dermatitis; when eye contacts it, it will lead to hurt of eye cornea. Need to protect when using it.
It should be stored in cool, ventilated, dry warehouse.

 





  Previous product:   None
  Next product: N,N'-Diisopropylcarbodiimide

主站蜘蛛池模板: 国产精鲁鲁网在线视频| 99热最新网址| 热这里只有精品国产热门精品| 国产精品私拍在线爆乳| 91午夜福利在线观看| 久久中文字幕2021精品| 美女无遮挡免费视频网站| 亚洲欧美综合在线观看| 少妇精品网站| 国产精品香蕉| 色哟哟国产精品| 欧美一级黄片一区2区| 狠狠色噜噜狠狠狠狠奇米777 | 激情亚洲天堂| 91成人免费观看在线观看| 国产成人精品高清在线| 国产精品亚洲综合久久小说| 青青久视频| 欧美日韩午夜| 日韩欧美中文字幕一本| 丝袜美女被出水视频一区| 成人av手机在线观看| 久久人妻xunleige无码| 免费观看国产小粉嫩喷水| 五月激激激综合网色播免费| 五月婷婷伊人网| 无遮挡国产高潮视频免费观看 | 国产成人艳妇AA视频在线| 日韩二区三区无| 高清无码一本到东京热| 亚洲精品黄| 在线国产你懂的| 99视频精品在线观看| 毛片久久网站小视频| 亚洲精品图区| 伊人久久婷婷五月综合97色| 国产欧美视频综合二区| 色婷婷成人网| 一本一道波多野结衣av黑人在线| 亚洲国产欧美国产综合久久| 成·人免费午夜无码视频在线观看 | 无码专区国产精品第一页| 国产日韩精品欧美一区喷| 国产黑人在线| 亚洲精品视频网| 日本道综合一本久久久88| 亚洲国产无码有码| 深爱婷婷激情网| 亚洲激情99| 亚洲精品高清视频| 国产成人久久777777| 久久久久国产精品嫩草影院| 欧美一区二区三区不卡免费| 欧美啪啪精品| 凹凸精品免费精品视频| 91青青在线视频| 亚洲日韩国产精品无码专区| 丁香婷婷激情网| 秋霞国产在线| 久久综合伊人77777| 91精品人妻互换| 免费国产好深啊好涨好硬视频| 日韩精品毛片| 99视频在线免费看| 一区二区日韩国产精久久| 国产精品久久久久久久久久98| 免费va国产在线观看| 国产一区二区三区日韩精品| 国产性猛交XXXX免费看| 亚洲成综合人影院在院播放| 在线观看国产精品第一区免费| 亚洲床戏一区| 精品视频第一页| 伊人久久精品无码麻豆精品| 国产精品亚洲一区二区三区z| 精品一区国产精品| 国产精品手机在线观看你懂的| 欧美区一区| 国产91无码福利在线| 香蕉在线视频网站| 国产网站黄| 日本在线国产|