203398-79-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 203398-79-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,3,9 and 8 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 203398-79:
(8*2)+(7*0)+(6*3)+(5*3)+(4*9)+(3*8)+(2*7)+(1*9)=132
132 % 10 = 2
So 203398-79-2 is a valid CAS Registry Number.