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23074-57-9

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23074-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23074-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,0,7 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 23074-57:
(7*2)+(6*3)+(5*0)+(4*7)+(3*4)+(2*5)+(1*7)=89
89 % 10 = 9
So 23074-57-9 is a valid CAS Registry Number.

23074-57-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-ethoxybut-3-en-2-one

1.2 Other means of identification

Product number -
Other names 4-ethoxy-but-3-en-2-one

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:23074-57-9 SDS

23074-57-9Relevant articles and documents

Pyridine C-region analogs of 2-(3-fluoro-4-methylsulfonylaminophenyl)propanamides as potent TRPV1 antagonists

Ryu, Hyungchul,Seo, Sejin,Lee, Jee-Young,Ha, Tae-Hwan,Lee, Sunho,Jung, Aeran,Ann, Jihyae,Kim, Sung-Eun,Yoon, Suyoung,Hong, Mannkyu,Blumberg, Peter M.,Frank-Foltyn, Robert,Bahrenberg, Gregor,Schiene, Klaus,Stockhausen, Hannelore,Christoph, Thomas,Frormann, Sven,Lee, Jeewoo

, p. 101 - 108 (2015/03/05)

A series of pyridine derivatives in the C-region of N-((6-trifluoromethyl-pyridin-3-yl)methyl) 2-(3-fluoro-4-methylsulfonylaminophenyl)propanamides were investigated as hTRPV1 antagonists. The SAR analysis indicated that 6-difluorochloromethyl pyridine derivatives were the best surrogates of the C-region for previous leads. Among them, compound 31 showed excellent antagonism to capsaicin as well as to multiple hTRPV1 activators. It demonstrated stronganalgesic activity in the formalin test in mice with full efficacy and it blocked capsaicin-induced hypothermia in vivo.

Protected propargylic acetals. Nicholas-Prins cyclization leading to functionalized 2-alkynyl-tetrahydropyrans. Intramolecular trapping by allenes

Olier, Clarisse,Gastaldi, Stéphane,Gil, Gérard,Bertrand, Michèle P.

, p. 7801 - 7804 (2008/03/11)

Dicobalt hexacarbonyl complexes derived from propargylic acetals undergo Lewis acid-mediated Nicholas-Prins cyclization in the presence of homoallylic alcohols. The trapping of the resulting cyclic carbocation enables the synthesis of a series of functionalized tetrahydropyrans. The complexation of the triple bond contributes to the suppression of the side reactions and very significantly increases both the yield and the diastereoselectivity of the reaction. Homoallenic alcohols lead to dienic compounds through proton elimination.

THE TWO STAGES OF THE ACID-CATALYZED HYDRATION OF 1-ALKOXY-1-BUTEN-3-YNES AND THE EFFECT OF CIS-TRANS ISOMERISM

Vavilova, A. N.,Trofimov, B. A.,Volkov, A. N.,Keiko, V. V.

, p. 809 - 812 (2007/10/02)

The kinetics of the acid-catalyzed hydrolysis of alkoxybutenynes under mild conditions were studied, and this made it possible to measure the rate of the first stage of the reaction.It was shown that the reaction rate depends on the configuration of the initial alkoxybutenynes.

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