503456-33-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 503456-33-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,4,5 and 6 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 503456-33:
(8*5)+(7*0)+(6*3)+(5*4)+(4*5)+(3*6)+(2*3)+(1*3)=125
125 % 10 = 5
So 503456-33-5 is a valid CAS Registry Number.