28868-04-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28868-04-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,8,6 and 8 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 28868-04:
(7*2)+(6*8)+(5*8)+(4*6)+(3*8)+(2*0)+(1*4)=154
154 % 10 = 4
So 28868-04-4 is a valid CAS Registry Number.