24188
Catecholamine mimetic EDTA - bis ( tyramide ) was synthesized and characterized by various spectroscopic techniques ( NMR , Mass spectroscopy ) and lambda em 310 nm for the excitation at 270 nm .
 Chemical: Catecholamine; Chemical: EDTA - bis ( tyramide )
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: Catecholamine; Chemical: EDTA - bis ( tyramide )