Other natural products U 0800Isolation of the Natural Colorant from the Roots of Arnebia nobilis and Its Use as a New Neutralization Indicator. -Compound (I) is reported to have a much wider pH-range than phenolphthalein or methyl orange, and it is also working in mixtures of strong acid-weak alkali and weak acid-strong alkali, where the two common indicators fail. -(INDRAYAN*, A. K.; YADAV, V.; KUMAR, R.; TYAGI, P. K.; J. Indian Chem.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.