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40309-42-0

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40309-42-0 Usage

Synthesis Reference(s)

Synthesis, p. 561, 2000 DOI: 10.1055/s-2000-6378

Check Digit Verification of cas no

The CAS Registry Mumber 40309-42-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,3,0 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 40309-42:
(7*4)+(6*0)+(5*3)+(4*0)+(3*9)+(2*4)+(1*2)=80
80 % 10 = 0
So 40309-42-0 is a valid CAS Registry Number.

40309-42-0SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name Ethyl 3-hydroxy-4-methylpentanoate

1.2 Other means of identification

Product number -
Other names 3-methyl-4-hydroxycyclobut-3-ene-1,2-dione

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:40309-42-0 SDS

40309-42-0Relevant articles and documents

Reduction of aromatic and aliphatic keto esters using sodium borohydride/MeOH at room temperature: a thorough investigation

Kim, Juryoung,De Castro, Kathlia A.,Lim, Minkyung,Rhee, Hakjune

supporting information; experimental part, p. 3995 - 4001 (2010/07/05)

Reduction of keto esters is a valuable alternative to produce diols. Sodium borohydride/MeOH system at room temperature and short reaction time efficiently reduced α, β, γ, and δ-keto esters having α-keto esters as the most reactive. The ester functionality was reduced effectively due to the presence of oxo group that somehow facilitates the formation of ring intermediate. As expected, the chemoselective experiments showed that ester functionality was not reduced using this system. This study presents a simple, easy, and benign reduction process of various keto esters to its corresponding diols.

Stereoselective enzymatic synthesis of chiral alcohols with the use of a carbonyl reductase from Candida magnoliae with anti-prelog enantioselectivity

Zhu, Dunming,Yang, Yan,Hua, Ling

, p. 4202 - 4205 (2007/10/03)

In our effort to search for carbonyl reductases with anti-Prelog enantioselectivity, the activity and enantioselectivity of a carbonyl reductase from Candida magnoliae have been examined with various ketones of diverse structures. This carbonyl reductase catalyzed the reduction of a series of ketones, α-and β-ketoesters, to anti-Prelog configurated alcohols in excellent optical purity. The usefulness of this carbonyl reductase has been demonstrated by synthesis of several chiral alcohol intermediates of pharmaceutical importance.

Synthesis of isotetronic acids by cyclization of 1,3-bis(trimethylsilyloxy) alk-1-enes with oxalyl chloride

Dede, Rüdiger,Michaelis, Lars,Langer, Peter

, p. 8129 - 8131 (2007/10/03)

Isotetronic acids were regioselectively prepared by cyclization of 1,3-bis(trimethylsilyloxy)alk-1-enes with oxalyl chloride.

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