28686-72-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28686-72-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,6,8 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 28686-72:
(7*2)+(6*8)+(5*6)+(4*8)+(3*6)+(2*7)+(1*2)=158
158 % 10 = 8
So 28686-72-8 is a valid CAS Registry Number.