28862-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28862-81-9 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 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 28862-81:
(7*2)+(6*8)+(5*8)+(4*6)+(3*2)+(2*8)+(1*1)=149
149 % 10 = 9
So 28862-81-9 is a valid CAS Registry Number.