28153-29-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28153-29-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,1,5 and 3 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 28153-29:
(7*2)+(6*8)+(5*1)+(4*5)+(3*3)+(2*2)+(1*9)=109
109 % 10 = 9
So 28153-29-9 is a valid CAS Registry Number.