A red powder, (C16H12)2; used as an indicator. It has a pH range of 5 to 6; being yellow at 5 and red at 6. ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973
Type: Term Pronunciation: fen′ă-set′ō-lin Definitions: 1. A red powder, (C16H12)2; used as an indicator. It has a pH range of 5 to 6, being yellow at 5 and red at 6. Found on http://www.medilexicon.com/medicaldictionary.php?t=67862