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211990-31-7

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211990-31-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 211990-31-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,9,9 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 211990-31:
(8*2)+(7*1)+(6*1)+(5*9)+(4*9)+(3*0)+(2*3)+(1*1)=117
117 % 10 = 7
So 211990-31-7 is a valid CAS Registry Number.

211990-31-7Relevant articles and documents

Asymmetric aza-diels-alder reaction using the chiral 1-phenyl ethyl imine of methyl glyoxylate

Stella,Abraham,Feneau-Dupont,Tinant,Declercq

, p. 2603 - 2606 (2007/10/02)

The Diels-Alder reaction between cyclopentadiene and the chiral 1-phenyl-ethyl imine of methyl glyoxylate takes place very easily by activation with trifluoroacetic acid and boron trifluoride etherate to provide diastereoselectively (total face selectivit

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