2-(3-(Butyrylamino)-2,4,6-triiodobenzyl)butyric acid 27293-82-9 Acidum tyropanoicum Benzenepropanoic acid, alpha-ethyl-2,4,6-triiodo-3-((1-oxobutyl)amino)- EINECS 248-389-8 TYROPANIC ACID Tyropanoate