午夜插插,噜噜噜影院,啪啪伊人网,欧美熟夫,景甜吻戏视频,男人强操性感蕾丝美女视频在线网站,日本美女跳舞视频

HYDROXYZINE HYDROCHLORIDE

HYDROXYZINE HYDROCHLORIDE Struktur
CAS-Nr.
Englisch Name:
HYDROXYZINE HYDROCHLORIDE
Synonyma:
HYDROXYZINE HYDROCHLORIDE
CBNumber:
CB7484355
Summenformel:
C21H28Cl2N2O2
Molgewicht:
411.37
MOL-Datei:
Mol file

HYDROXYZINE HYDROCHLORIDE Eigenschaften

Sicherheit

HYDROXYZINE HYDROCHLORIDE Chemische Eigenschaften,Einsatz,Produktion Methoden

Originator

Atarax,UCB,France,1956

Manufacturing Process

A mixture of 0.1 mol of N-mono-1-p-chlorobenzohydrylpiperazine and 0.1 mol of 1-chloro-2-(2-hydroxy-ethoxy)-ethane is heated for 3 hours to 150°C. The mass is then taken up in 100 ml of benzene and 100 ml of a 10% aqueous solution of NaOH; decanting takes place, and the benzene solution is washed with water and the solvent is evaporated. Vacuum distilling of the residue yields 1-p-chlorobenzohydryl-4-[2-(2-hydroxy-ethoxy)-ethyl]-piperazine, BP 220°C/0.5 mm Hg.
The corresponding dihydrochloride is prepared by dissolving this base in about twice its weight of alcohol, by treating it with excess of gaseous HCl and by precipitating it with ether. The solvent is decanted and the residue, dissolved in a minimum of alcohol, crystallizes on the addition of ether, MP 193°C.

Therapeutic Function

Tranquilizer

HYDROXYZINE HYDROCHLORIDE Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


HYDROXYZINE HYDROCHLORIDE Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 18)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
S.Z. PhyStandard Bio-Tech. Co., Ltd. 0755-83725681-603
China 4496 50
Beijing Solarbio Science & Tecnology Co., Ltd. 17801761073
3193328036@qq.com China 6338 68
Nanjing Shizhou Biology Technology Co.,Ltd 13675144456
sean.lv@synzest.com China 10784 58
Gongyishengan Technology (Shenzhen) Co., Ltd. +86-0755-89218110 +86-13480856786
2880189130@qq.com China 991 58

  • HYDROXYZINE HYDROCHLORIDE
Copyright 2019 ? ChemicalBook. All rights reserved