Cas 87198-72-9,4-(3-nitrophenyl)-2-thiazolesulfamoylic acid

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Check Digit Verification of cas no

The CAS Registry Mumber 87198-72-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,1,9 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 87198-72:
(7*8)+(6*7)+(5*1)+(4*9)+(3*8)+(2*7)+(1*2)=179
179 % 10 = 9
So 87198-72-9 is a valid CAS Registry Number.

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87198-72-9Relevant academic research and scientific papers

Study of reaction routes in sulfoination of 2-aminothiazoles with chlorosulfonic acid

Lyashchuk,Enya,Doroshenko,Skrypnik

, p. 1647 - 1650 (2004)

The sulfonation of 4-substituted 2-aminothiazoles with chlorosulfonic acid under mild conditions afforded primarily 2-amino-5-thiazolesulfonic acids that at heating in sulfuric acid rearranged into the corresponding stable 2-thiazolesulfamoylic acids. 200

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