31877-49-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31877-49-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,8,7 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 31877-49:
(7*3)+(6*1)+(5*8)+(4*7)+(3*7)+(2*4)+(1*9)=133
133 % 10 = 3
So 31877-49-3 is a valid CAS Registry Number.