65614-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 65614-91-7 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 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 65614-91:
(7*6)+(6*5)+(5*6)+(4*1)+(3*4)+(2*9)+(1*1)=137
137 % 10 = 7
So 65614-91-7 is a valid CAS Registry Number.