4303-65-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4303-65-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,0 and 3 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4303-65:
(6*4)+(5*3)+(4*0)+(3*3)+(2*6)+(1*5)=65
65 % 10 = 5
So 4303-65-5 is a valid CAS Registry Number.