News List

The Nobel Prize in Chemistry 2021

Oct. 12, 2021

Two scientists won the Nobel Prize for chemistry Wednesday for finding an “ingenious” new way to build molecules that ca

Hangzhou keying new stock list 2021/07/22

Jul. 22, 2021

德国朗盛Emulvin WA芳基乙基苯基聚乙二醇醚Emulvin WA104376-75-2三甲基氯硅烷Chlorotrimethylsilane75-77-4异十二烷PERMETHYL 99A Isododecano31807-55-3

招聘

Jun. 28, 2021

招聘岗位:【外贸业务员】岗位职责:1.开展外贸业务,拓展海外市场,开发、维护国外客户;2.收集市场信息,提交市场分析报告;3.进出口业务的联络、洽谈和谈判;订单处理,保证按照客户要求交付;4.对供应商质量、交付的监控,及时处理相关问题;5.

2021/06/22 keying stock list

Jun. 22, 2021

甲磺酸酚妥拉明Phentolamine mesilate65-28-1盐酸四环素Tetracycline hydrochloride64-75-51-二十二醇n-Docosanol661-19-8硫代卡巴肼Thiocarbohydrazid

2021/06/03/ Keying stock list

Jun. 03, 2021

WE HAVE FOLLOW ITEMS IN STOCK , CAN OFFER YOU A GOOD PRICE !!乙二醇乙醚2-Ethoxyethanol110-80-5聚甘油-10 十油酸酯Decaglyceryl Decaole

2021 Labor Holiday

Apr. 29, 2021

Dear ColleaguesPlease be noted following holiday arrangements for 2021 Labor Holiday .1st May -5th May (5 days ).Please

Hangzhou keying new stock list

Mar. 24, 2021

2-氟-6-氨基嘌呤2-Fluoroadenine700-49-2辛基三秦酮;光稳定剂150;乙基己基三嗪酮Ethylhexyl Triazone88122-99-0异壬醇isononyl alcohol27458-94-21-溴-4-甲基

沃尔夫-凯惜纳-黄鸣龙还原反应

Mar. 24, 2021

沃尔夫-凯惜纳-黄鸣龙还原反应(Wolff-Kishner-Huang还原反应)是一个有机还原反应,羰基化合物(醛或酮)在高沸点溶剂如一缩二乙二醇中与肼和氢氧化钾一起加热反应,羰基还原为亚甲基。 原来的反应过程是用醛酮、肼与金属钠或钾在高温