Phenol red143-74-8100 % similar Phenol red sodium34487-61-178 % similar Pyrocatechol violet115-41-367 % similar Metacresol purple2303-01-762 % similar Cresol red1733-12-660 % similar Bromophenol red2800-80-860 % similar Chlorophenol red4430-20-060 % similar Bromophenol blue115-39-960 % similar Iodophenol blue4430-24-460 % similar Bromocresol purple115-40-252 % similar Bromochlorophenol blue2553-71-152 % similar Xylenol blue125-31-551 % similar Cresol red sodium62625-29-049 % similar Bromophenol blue sodium salt33551-92-749 % similar Bromopyrogallol red16574-43-949 % similar Phenolphthalein77-09-847 % similar Bromocresol green76-60-846 % similar Thymol blue76-61-945 % similar Bromocresol purple sodium62625-30-343 % similar 9,9′-Bis(4-hydroxyphenyl)fluorene3236-71-342 % similar