610
Their structures were elucidated by their extensive high resolution - electrospray ionization mass spectrometry ( HR - ESI - MS ) , one - and two - dimensional spectroscopic analysis , including heteronuclear single quantum coherence ( HSQC ) , HMBC and NOESY experiments .
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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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