31869-63-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31869-63-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,8,6 and 9 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 31869-63:
(7*3)+(6*1)+(5*8)+(4*6)+(3*9)+(2*6)+(1*3)=133
133 % 10 = 3
So 31869-63-3 is a valid CAS Registry Number.