41931-31-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 41931-31-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,9,3 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 41931-31:
(7*4)+(6*1)+(5*9)+(4*3)+(3*1)+(2*3)+(1*1)=101
101 % 10 = 1
So 41931-31-1 is a valid CAS Registry Number.