不卡免费视频丨国产女主播av丨亚洲五月激情丨日日摸夜夜添无码无码av丨翔田千里高潮在线播放丨亚洲视频123丨www91com国产91丨日文字体乱码一二三四最新丨久久久亚洲综合丨国产欧美一级丨欧美裸体xxxx极品丨国产一区二区三区免费观看网站上丨亚洲男人天堂网站丨99在线影院丨中文字幕不卡一区丨玩两个丰满老熟女丨国产999在线观看丨国产网红主播三级精品视频丨色综合久久88色综合天天丨69xx视频在线观看

 
Location:Home >>Product >>Intermediate

?1,8-diazabicyclo [5.4.0]undec-7-ene(DBU)

Update time:2023/06/12 08:57:06  ???View:  

1,8-diazabicyclo [5.4.0]undec-7-ene(DBU)
CAS 6674-22-2
Transparent colorless to light yellow oily liquid.
Catalysts used in the production of poly (Aminomethanol ethyl ester) and other chemicals, such as ammonia and dichloroethane, react in its presence to produce piperazine, which is an excellent dehydrating agent, epoxy resin hardener, rust inhibitor, and can also be used to prepare advanced corrosion inhibitor.
At present, it is widely used in the production of Semisynthesis cephalosporin antibiotics. It is also used for organic synthesis reaction and Semisynthesis antibiotics.

------分隔線----------------------------

Service Hotline:

You only need a phone call, we will serve you attentively

Consult now
Copyright © Shandong Zhengji Chemical Co., Ltd.  All Rights Reserved   Case Number :魯ICP備20007847號-4 chemBlink Premium Supplier