203568-17-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 203568-17-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,5,6 and 8 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 203568-17:
(8*2)+(7*0)+(6*3)+(5*5)+(4*6)+(3*8)+(2*1)+(1*7)=116
116 % 10 = 6
So 203568-17-6 is a valid CAS Registry Number.