33159-54-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33159-54-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,1,5 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 33159-54:
(7*3)+(6*3)+(5*1)+(4*5)+(3*9)+(2*5)+(1*4)=105
105 % 10 = 5
So 33159-54-5 is a valid CAS Registry Number.