22900
The regression lines established by the comparison between theoretical CCS values and observed drift times from IMS for each set of parent compound ( labetalol , ezetimibe , atorvastatin and warfarin ) and its MS / MS product ions accurately and selectively projected the actual drift times of NMP derivatives of corresponding aromatic or isomeric hydroxylated metabolites .
 Chemical: labetalol; Chemical: ezetimibe; Chemical: atorvastatin; Chemical: warfarin; Chemical: NMP
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: labetalol; Chemical: ezetimibe; Chemical: atorvastatin; Chemical: warfarin; Chemical: NMP