55781-80-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55781-80-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,7,8 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 55781-80:
(7*5)+(6*5)+(5*7)+(4*8)+(3*1)+(2*8)+(1*0)=151
151 % 10 = 1
So 55781-80-1 is a valid CAS Registry Number.