208172-83-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 208172-83-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,1,7 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 208172-83:
(8*2)+(7*0)+(6*8)+(5*1)+(4*7)+(3*2)+(2*8)+(1*3)=122
122 % 10 = 2
So 208172-83-2 is a valid CAS Registry Number.