135972-13-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135972-13-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,9,7 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 135972-13:
(8*1)+(7*3)+(6*5)+(5*9)+(4*7)+(3*2)+(2*1)+(1*3)=143
143 % 10 = 3
So 135972-13-3 is a valid CAS Registry Number.