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4224-63-9

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4224-63-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4224-63-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,2 and 4 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 4224-63:
(6*4)+(5*2)+(4*2)+(3*4)+(2*6)+(1*3)=69
69 % 10 = 9
So 4224-63-9 is a valid CAS Registry Number.

4224-63-9Relevant articles and documents

Expedient synthesis of long-chain ω-substituted fatty acids and esters from cyclic ketones using iodine and hydrogen peroxide

Podrezova, Ekaterina V.,Larkina, Maria S.,Belousov, Mikhail V.,Kirschning, Andreas,Zhdankin, Viktor V.,Yusubov, Mekhman S.

, p. 4081 - 4088 (2018/10/15)

A simple and convenient synthesis of ω-iodoaliphatic carboxylic acids and esters by the reaction of cyclic ketones with iodine and hydrogen peroxide in the presence of catalytic CuCl has been developed. ω-Iodoaliphatic carboxylic esters were further used for the efficient preparation of di(2-pyridylmethylamino)alkanoic acids in excellent yields.

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