3299-53-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3299-53-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,9 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 3299-53:
(6*3)+(5*2)+(4*9)+(3*9)+(2*5)+(1*3)=104
104 % 10 = 4
So 3299-53-4 is a valid CAS Registry Number.