39503-05-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39503-05-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,5,0 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 39503-05:
(7*3)+(6*9)+(5*5)+(4*0)+(3*3)+(2*0)+(1*5)=114
114 % 10 = 4
So 39503-05-4 is a valid CAS Registry Number.