133998-51-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133998-51-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,9,9 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 133998-51:
(8*1)+(7*3)+(6*3)+(5*9)+(4*9)+(3*8)+(2*5)+(1*1)=163
163 % 10 = 3
So 133998-51-3 is a valid CAS Registry Number.