4945-33-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4945-33-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,4 and 5 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 4945-33:
(6*4)+(5*9)+(4*4)+(3*5)+(2*3)+(1*3)=109
109 % 10 = 9
So 4945-33-9 is a valid CAS Registry Number.