英文別名;Cresol red (0.1% in ca. 20% ethanol);o-Cresolsulphonephthalein;o-Cresol Red;o-Cresolsulfonphthalein;4,4'-(1,1-dioxido-3H-2,1-benzoxathiole-3,3-diyl)bis(2-methylphenol);2-[(Z)-(4-hydroxy-3-methylphenyl)(3-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonic acid;