In the sentence extracted from biomedical literature, identify all the chemical entities. The required answer format is the same sentence with HTML <span> tags to mark up specific entities. 
### Entity Markup Guides:
Use <span class="chemical"> to denote a chemical.

### Input Text: We compared the toxicity of NS - 718 with that of Fungizone ( amphotericin B - sodium deoxycholate ; D - AmB ) in vitro using renal cell cultures and in vivo by biochemical analysis , histopathological study of the kidney and pharmacokinetic study of amphotericin B following intravenous infusion of the formulation in rats .
### Output Text:
We compared the toxicity of NS - 718 with that of <span class="chemical">Fungizone</span> ( <span class="chemical">amphotericin B - sodium deoxycholate</span> ; <span class="chemical">D - AmB</span> ) in vitro using renal cell cultures and in vivo by biochemical analysis , histopathological study of the kidney and pharmacokinetic study of <span class="chemical">amphotericin B</span> following intravenous infusion of the formulation in rats . 