749181-31-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 749181-31-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,9,1,8 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 749181-31:
(8*7)+(7*4)+(6*9)+(5*1)+(4*8)+(3*1)+(2*3)+(1*1)=185
185 % 10 = 5
So 749181-31-5 is a valid CAS Registry Number.