67428-18-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67428-18-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,4,2 and 8 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 67428-18:
(7*6)+(6*7)+(5*4)+(4*2)+(3*8)+(2*1)+(1*8)=146
146 % 10 = 6
So 67428-18-6 is a valid CAS Registry Number.