2224-83-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2224-83-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,2 and 4 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 2224-83:
(6*2)+(5*2)+(4*2)+(3*4)+(2*8)+(1*3)=61
61 % 10 = 1
So 2224-83-1 is a valid CAS Registry Number.
2224-83-1Relevant articles and documents
IMPROVED PROCESS FOR THE PREPARATION OF CHLORTHALIDONE
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Page/Page column 7, (2018/09/20)
The present invention relates to methods for preparing chlorthalidone. In particular, the disclosed processes are feasible on an industrial scale and provide substantially pure chlorthalidone.