13337-81-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13337-81-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,3,3 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 13337-81:
(7*1)+(6*3)+(5*3)+(4*3)+(3*7)+(2*8)+(1*1)=90
90 % 10 = 0
So 13337-81-0 is a valid CAS Registry Number.