33089-31-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33089-31-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,0,8 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 33089-31:
(7*3)+(6*3)+(5*0)+(4*8)+(3*9)+(2*3)+(1*1)=105
105 % 10 = 5
So 33089-31-5 is a valid CAS Registry Number.