81278-84-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81278-84-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,2,7 and 8 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 81278-84:
(7*8)+(6*1)+(5*2)+(4*7)+(3*8)+(2*8)+(1*4)=144
144 % 10 = 4
So 81278-84-4 is a valid CAS Registry Number.