83655-80-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83655-80-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,6,5 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 83655-80:
(7*8)+(6*3)+(5*6)+(4*5)+(3*5)+(2*8)+(1*0)=155
155 % 10 = 5
So 83655-80-5 is a valid CAS Registry Number.