805203-48-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 805203-48-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,5,2,0 and 3 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 805203-48:
(8*8)+(7*0)+(6*5)+(5*2)+(4*0)+(3*3)+(2*4)+(1*8)=129
129 % 10 = 9
So 805203-48-9 is a valid CAS Registry Number.