1020204-16-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1020204-16-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,0,2,0 and 4 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1020204-16:
(9*1)+(8*0)+(7*2)+(6*0)+(5*2)+(4*0)+(3*4)+(2*1)+(1*6)=53
53 % 10 = 3
So 1020204-16-3 is a valid CAS Registry Number.