447438-63-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 447438-63-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,7,4,3 and 8 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 447438-63:
(8*4)+(7*4)+(6*7)+(5*4)+(4*3)+(3*8)+(2*6)+(1*3)=173
173 % 10 = 3
So 447438-63-3 is a valid CAS Registry Number.