Figure (IMAGE) Kanazawa University Caption Organic ‘color indicator’ compounds consisting of one-handed helical poly(diphenylacetylene)s possessing carboxy groups in the side chains (M-h-poly-1-H) for distinguishing between enantiomers of chiral amines and for determining their enantiomeric excess. Credit Kanazawa University Usage Restrictions The image may only be used with appropriate caption and credt. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.