81965-15-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81965-15-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,6 and 5 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 81965-15:
(7*8)+(6*1)+(5*9)+(4*6)+(3*5)+(2*1)+(1*5)=153
153 % 10 = 3
So 81965-15-3 is a valid CAS Registry Number.