20386
The structure of the new compound was determined as methyl 3 - ( 5 , 7 - dihydroxy - 2 - ( 4 - hydroxyphenyl ) - 4 - oxo - 4H - chromen - 6 - yl ) - 4 - methoxybenzoate by means of spectroscopic evidence , including UV , IR , 1D and 2D NMR analyses as well as HR - ESI - MS .
 Chemical: methyl 3 - ( 5 , 7 - dihydroxy - 2 - ( 4 - hydroxyphenyl ) - 4 - oxo - 4H - chromen - 6 - yl ) - 4 - methoxybenzoate
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
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Answer:
 Chemical: methyl 3 - ( 5 , 7 - dihydroxy - 2 - ( 4 - hydroxyphenyl ) - 4 - oxo - 4H - chromen - 6 - yl ) - 4 - methoxybenzoate