3509-94-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3509-94-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,5,0 and 9 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 3509-94:
(6*3)+(5*5)+(4*0)+(3*9)+(2*9)+(1*4)=92
92 % 10 = 2
So 3509-94-2 is a valid CAS Registry Number.