128902-88-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128902-88-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,0 and 2 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 128902-88:
(8*1)+(7*2)+(6*8)+(5*9)+(4*0)+(3*2)+(2*8)+(1*8)=145
145 % 10 = 5
So 128902-88-5 is a valid CAS Registry Number.