443900-48-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 443900-48-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,3,9,0 and 0 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 443900-48:
(8*4)+(7*4)+(6*3)+(5*9)+(4*0)+(3*0)+(2*4)+(1*8)=139
139 % 10 = 9
So 443900-48-9 is a valid CAS Registry Number.