99203-95-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99203-95-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,0 and 3 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 99203-95:
(7*9)+(6*9)+(5*2)+(4*0)+(3*3)+(2*9)+(1*5)=159
159 % 10 = 9
So 99203-95-9 is a valid CAS Registry Number.