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438221-62-6

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438221-62-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 438221-62-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,8,2,2 and 1 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 438221-62:
(8*4)+(7*3)+(6*8)+(5*2)+(4*2)+(3*1)+(2*6)+(1*2)=136
136 % 10 = 6
So 438221-62-6 is a valid CAS Registry Number.

438221-62-6Downstream Products

438221-62-6Relevant articles and documents

Alkylation of NH-, OH-, and SH-acids in the presence of potassium carbonate: 1. Functionalization of chloromethyl group of alkoxy-substituted aromatic aldehydes

Khachatryan,Razinov,Kolotaev,Belus?,Matevosyan

, p. 395 - 404 (2015/10/29)

An easily scalable, economocal, and more safe method for the preparation of 3-chloromethyl-4-methoxybenzaldehyde was developed. The latter was subjected to reactions with NH-, OH-, and SH-acids in the presence of potassium carbonate to obtain new aromatic aldehydes in high yields.

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