1020663-73-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1020663-73-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,0,6,6 and 3 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1020663-73:
(9*1)+(8*0)+(7*2)+(6*0)+(5*6)+(4*6)+(3*3)+(2*7)+(1*3)=103
103 % 10 = 3
So 1020663-73-3 is a valid CAS Registry Number.