203315-97-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 203315-97-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,3,1 and 5 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 203315-97:
(8*2)+(7*0)+(6*3)+(5*3)+(4*1)+(3*5)+(2*9)+(1*7)=93
93 % 10 = 3
So 203315-97-3 is a valid CAS Registry Number.