1351961-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1351961-57-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,1,9,6 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1351961-57:
(9*1)+(8*3)+(7*5)+(6*1)+(5*9)+(4*6)+(3*1)+(2*5)+(1*7)=163
163 % 10 = 3
So 1351961-57-3 is a valid CAS Registry Number.
1351961-57-3Relevant articles and documents
ORGANIC COMPOUNDS
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Page/Page column 63, (2011/12/14)
Optionally substituted 4,5,7,8-tetrahydro-(optionally 4-oxo, 4-thioxo or 4-imino)-(1H or 2H)-imidazo[1,2-a]pyrazolo[4,3-e]pyrimidine or 4,5,7,8,9-pentahydro-(optionally 4-oxo, 4-thioxo or 4-imino)-(1H or 2H)-pyrimido[1,2-a]pyrazolo[4,3-e]pyrimidine compou