171020-83-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171020-83-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,0,2 and 0 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 171020-83:
(8*1)+(7*7)+(6*1)+(5*0)+(4*2)+(3*0)+(2*8)+(1*3)=90
90 % 10 = 0
So 171020-83-0 is a valid CAS Registry Number.