18503-88-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18503-88-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,5,0 and 3 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 18503-88:
(7*1)+(6*8)+(5*5)+(4*0)+(3*3)+(2*8)+(1*8)=113
113 % 10 = 3
So 18503-88-3 is a valid CAS Registry Number.