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57031-90-0

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57031-90-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57031-90-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,0,3 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 57031-90:
(7*5)+(6*7)+(5*0)+(4*3)+(3*1)+(2*9)+(1*0)=110
110 % 10 = 0
So 57031-90-0 is a valid CAS Registry Number.

57031-90-0SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name ethyl (Z)-3-hydroxy-2-butenoate

1.2 Other means of identification

Product number -
Other names acetoacetic acid ethyl ester, (Z)-2-enol form

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:57031-90-0 SDS

57031-90-0Relevant articles and documents

Direct Observation of α-Oxo Ketenes Formed from 1,3-Dioxin-4-ones and the Enols of β-Keto Esters

Freiermuth, Beat,Wentrup, Curt

, p. 2286 - 2289 (2007/10/02)

The enol forms of β-keto esters thermolyze to alcohols and α-oxo ketenes, which are characterized by low-temperature IR spectroscopy and on warming regenerate the β-hydroxy-α,β-unsaturated esters. The matrix isolated s-Z and s-E forms of α-oxo ketenes are characterized and photochemically converted into other conformers or sites.Matrix photolysis of 2,2,6-trimethyl-1,3-dioxin-4-one gives the s-Z acetylketene initially. α-Oxo ketenes polymerize in the cold and dimerize only at elevated temperatures.

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