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42722-80-5

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42722-80-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42722-80-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,7,2 and 2 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 42722-80:
(7*4)+(6*2)+(5*7)+(4*2)+(3*2)+(2*8)+(1*0)=105
105 % 10 = 5
So 42722-80-5 is a valid CAS Registry Number.

42722-80-5Relevant articles and documents

Pure, unsolvated (α-Methoxyvinyl)lithlum and related acyl anion equivalents via the transmetalation of organotin compounds

Soderquist, John A.,Hsu, Grace Ji-Ho

, p. 830 - 833 (2008/10/08)

A detailed study of the deprotorution of simple vinyl ethers it reported The major α-deprotooation reaction is accompanied by a tempreature-dependent β-deprotonation process. Pure, unsolvated (α-methoxyvinyl)lithium and related acyl aniom equivalents can be prepared quantitatively from the transmetalation.

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