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90725-44-3

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90725-44-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90725-44-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,7,2 and 5 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 90725-44:
(7*9)+(6*0)+(5*7)+(4*2)+(3*5)+(2*4)+(1*4)=133
133 % 10 = 3
So 90725-44-3 is a valid CAS Registry Number.

90725-44-3Relevant articles and documents

Synthesis of Oxazine, Thiazine, and Quinoxaline Derivatives Containing a Benzyl Fragment from 3-Aryl-2-Bromopropanoic Acids and Their Esters

Martyak, R. L.,Matiychuk, V. S.,Obushak, M. D.,Pokhodylo, N. T.,Rogovyk, M. P.

, p. 532 - 539 (2021/06/01)

Abstract: 3-Aryl-2-bromopropanoic acid esters reacted with o-phenylenediamine, 2-sulfanylaniline, and L-cysteine to give quinoxaline, 1,4-thiazine, and thiomorpholine derivatives, respectively, containing an aryl-methyl substituent. Analogous 1,4-benzoxaz

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