8784
These data suggest that iron carbonyls can be used as scaffolds for the design and synthesis of pharmacologically active CO - RMs and indicate that increasing water solubility and controlling the rate of CO release are important parameters for limiting their potential toxic effects .
 Chemical: iron carbonyls; Chemical: CO; Chemical: CO
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: iron carbonyls; Chemical: CO; Chemical: CO