1213591-61-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1213591-61-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,3,5,9 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1213591-61:
(9*1)+(8*2)+(7*1)+(6*3)+(5*5)+(4*9)+(3*1)+(2*6)+(1*1)=127
127 % 10 = 7
So 1213591-61-7 is a valid CAS Registry Number.