128890-33-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128890-33-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,8,9 and 0 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 128890-33:
(8*1)+(7*2)+(6*8)+(5*8)+(4*9)+(3*0)+(2*3)+(1*3)=155
155 % 10 = 5
So 128890-33-5 is a valid CAS Registry Number.