39690-61-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39690-61-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,6,9 and 0 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 39690-61:
(7*3)+(6*9)+(5*6)+(4*9)+(3*0)+(2*6)+(1*1)=154
154 % 10 = 4
So 39690-61-4 is a valid CAS Registry Number.