39694-91-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39694-91-2 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 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 39694-91:
(7*3)+(6*9)+(5*6)+(4*9)+(3*4)+(2*9)+(1*1)=172
172 % 10 = 2
So 39694-91-2 is a valid CAS Registry Number.