99430-18-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99430-18-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,4,3 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 99430-18:
(7*9)+(6*9)+(5*4)+(4*3)+(3*0)+(2*1)+(1*8)=159
159 % 10 = 9
So 99430-18-9 is a valid CAS Registry Number.