69740-31-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69740-31-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,7,4 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 69740-31:
(7*6)+(6*9)+(5*7)+(4*4)+(3*0)+(2*3)+(1*1)=154
154 % 10 = 4
So 69740-31-4 is a valid CAS Registry Number.