19354
The structure elucidation was carried out on the basis of UV , infrared ( IR ) , HR - ESI - MS , 1D and 2D NMR spectra and finally confirmed by the single crystal X - ray analysis .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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