91865-05-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91865-05-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,8,6 and 5 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 91865-05:
(7*9)+(6*1)+(5*8)+(4*6)+(3*5)+(2*0)+(1*5)=153
153 % 10 = 3
So 91865-05-3 is a valid CAS Registry Number.