503426-87-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 503426-87-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,3,4,2 and 6 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 503426-87:
(8*5)+(7*0)+(6*3)+(5*4)+(4*2)+(3*6)+(2*8)+(1*7)=127
127 % 10 = 7
So 503426-87-7 is a valid CAS Registry Number.