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132505-72-7

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132505-72-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132505-72-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,5,0 and 5 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 132505-72:
(8*1)+(7*3)+(6*2)+(5*5)+(4*0)+(3*5)+(2*7)+(1*2)=97
97 % 10 = 7
So 132505-72-7 is a valid CAS Registry Number.

132505-72-7Downstream Products

132505-72-7Relevant articles and documents

SELECTIVE MONOETHERIFICATION AND MONOESTERIFICATION OF DIOLS AND DIACIDS UNDER PHASE-TRANSFER CONDITIONS

Zerda, Jaime de la,Barak, Gabriela,Sasson, Yoel

, p. 1533 - 1536 (2007/10/02)

Research on the selectivity of etherification reactions of diols and esterification reactions of diacids by alkyl halides under phase-transfer catalysis has shown that under such conditions, selectivity of monoetherification increases in the order prim sec tert diols, though overall yield of monoether decreases from sec to tert diols.Monoesterification of diacids was accomplished with a high degree of selectivity.Optimal extraction of diols and diacids was found to correspond in general to chain lengths of around 5 carbons.This could mean that the complex formed between the catalyst and the anion to react is stabilized for certain carbon lengths by inner solvation in virtue of its spatial conformation.

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