503547-54-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 503547-54-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,5,4 and 7 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 503547-54:
(8*5)+(7*0)+(6*3)+(5*5)+(4*4)+(3*7)+(2*5)+(1*4)=134
134 % 10 = 4
So 503547-54-4 is a valid CAS Registry Number.