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131131-40-3

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131131-40-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131131-40-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,1,3 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 131131-40:
(8*1)+(7*3)+(6*1)+(5*1)+(4*3)+(3*1)+(2*4)+(1*0)=63
63 % 10 = 3
So 131131-40-3 is a valid CAS Registry Number.

131131-40-3Downstream Products

131131-40-3Relevant articles and documents

Mechanical Activation of Magnesium Turnings for the Preparation of Reactive Grignard Reagents

Baker, Karen V.,Brown, John M.,Hughes, Nigel,Skarnulis, A. Jerome,Sexton, Ann

, p. 698 - 703 (2007/10/02)

Preactivation of magnesium by dry stirring in an inert atmosphere is highly beneficial for the clean synthesis of reactive allylic or benzylic organomagnesium chlorides.This procedure routinely produces 0.4 M solutions of the Grignard reagent in diethyl ether free from coupling products.The purity may be directly assayed by 13C spectroscopy.Using spin saturation transfer techniques, the rate constant for interconversion of the enantiomers of (1-phenyl-2-methylpropyl)magnesium chloride in Et2O at 25 deg C was shown to be -1.Electron microscopy has been used to define the surface changes occurring during the dry stirring of magnesium turnings.

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