203319-85-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 203319-85-1 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 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 203319-85:
(8*2)+(7*0)+(6*3)+(5*3)+(4*1)+(3*9)+(2*8)+(1*5)=101
101 % 10 = 1
So 203319-85-1 is a valid CAS Registry Number.