674305-53-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 674305-53-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,4,3,0 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 674305-53:
(8*6)+(7*7)+(6*4)+(5*3)+(4*0)+(3*5)+(2*5)+(1*3)=164
164 % 10 = 4
So 674305-53-4 is a valid CAS Registry Number.