80641-34-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80641-34-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,6,4 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 80641-34:
(7*8)+(6*0)+(5*6)+(4*4)+(3*1)+(2*3)+(1*4)=115
115 % 10 = 5
So 80641-34-5 is a valid CAS Registry Number.