170220-82-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 170220-82-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,0,2,2 and 0 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 170220-82:
(8*1)+(7*7)+(6*0)+(5*2)+(4*2)+(3*0)+(2*8)+(1*2)=93
93 % 10 = 3
So 170220-82-3 is a valid CAS Registry Number.