1233921-79-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1233921-79-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,3,9,2 and 1 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1233921-79:
(9*1)+(8*2)+(7*3)+(6*3)+(5*9)+(4*2)+(3*1)+(2*7)+(1*9)=143
143 % 10 = 3
So 1233921-79-3 is a valid CAS Registry Number.