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133973-14-5

133973-14-5

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133973-14-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133973-14-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,9,7 and 3 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 133973-14:
(8*1)+(7*3)+(6*3)+(5*9)+(4*7)+(3*3)+(2*1)+(1*4)=135
135 % 10 = 5
So 133973-14-5 is a valid CAS Registry Number.

133973-14-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-(S)-2-hydroxy-2-ethyl-3-oxo-4-butanoate

1.2 Other means of identification

Product number -
Other names 2-(S)-2-hydroxy-2-ethyl-3-oxobutanoate

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:133973-14-5 SDS

133973-14-5Relevant articles and documents

Stereoelectronic Control of the Base-catalysed Rearrangement of 2-Hydroxy-3-oxocarboxylates

Crout, David H. G.,Lee, Edward R.,Pearson, David P. J.

, p. 381 - 385 (2007/10/02)

The stereochemistry of the alkyl-catalysed rearrangement of α-acetohydroxybutyrate (2-ethyl-2-hydroxy-3-oxobutanoate) was studied.The rearrangement was found to proceed via a transition state in which a syn arrangement of the C-O bonds is preferred over the anti arrangement by a factor of >/= 2:1.

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