5609-94-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5609-94-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,0 and 9 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 5609-94:
(6*5)+(5*6)+(4*0)+(3*9)+(2*9)+(1*4)=109
109 % 10 = 9
So 5609-94-9 is a valid CAS Registry Number.