1609565-04-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1609565-04-9 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 5 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1609565-04:
(9*1)+(8*6)+(7*0)+(6*9)+(5*5)+(4*6)+(3*5)+(2*0)+(1*4)=179
179 % 10 = 9
So 1609565-04-9 is a valid CAS Registry Number.