131981-73-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131981-73-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,9,8 and 1 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 131981-73:
(8*1)+(7*3)+(6*1)+(5*9)+(4*8)+(3*1)+(2*7)+(1*3)=132
132 % 10 = 2
So 131981-73-2 is a valid CAS Registry Number.