3339-53-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3339-53-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,3,3 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 3339-53:
(6*3)+(5*3)+(4*3)+(3*9)+(2*5)+(1*3)=85
85 % 10 = 5
So 3339-53-5 is a valid CAS Registry Number.