7284-66-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7284-66-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,8 and 4 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 7284-66:
(6*7)+(5*2)+(4*8)+(3*4)+(2*6)+(1*6)=114
114 % 10 = 4
So 7284-66-4 is a valid CAS Registry Number.