1337-59-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1337-59-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,3 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1337-59:
(6*1)+(5*3)+(4*3)+(3*7)+(2*5)+(1*9)=73
73 % 10 = 3
So 1337-59-3 is a valid CAS Registry Number.