855-80-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 855-80-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,5 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 855-80:
(5*8)+(4*5)+(3*5)+(2*8)+(1*0)=91
91 % 10 = 1
So 855-80-1 is a valid CAS Registry Number.