18415-63-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18415-63-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,4,1 and 5 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 18415-63:
(7*1)+(6*8)+(5*4)+(4*1)+(3*5)+(2*6)+(1*3)=109
109 % 10 = 9
So 18415-63-9 is a valid CAS Registry Number.