1020173-74-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1020173-74-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,0,1,7 and 3 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1020173-74:
(9*1)+(8*0)+(7*2)+(6*0)+(5*1)+(4*7)+(3*3)+(2*7)+(1*4)=83
83 % 10 = 3
So 1020173-74-3 is a valid CAS Registry Number.