65615-68-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 65615-68-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,6,1 and 5 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 65615-68:
(7*6)+(6*5)+(5*6)+(4*1)+(3*5)+(2*6)+(1*8)=141
141 % 10 = 1
So 65615-68-1 is a valid CAS Registry Number.