1609563-03-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1609563-03-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,9,5,6 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1609563-03:
(9*1)+(8*6)+(7*0)+(6*9)+(5*5)+(4*6)+(3*3)+(2*0)+(1*3)=172
172 % 10 = 2
So 1609563-03-2 is a valid CAS Registry Number.