28290-27-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28290-27-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,2,9 and 0 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 28290-27:
(7*2)+(6*8)+(5*2)+(4*9)+(3*0)+(2*2)+(1*7)=119
119 % 10 = 9
So 28290-27-9 is a valid CAS Registry Number.