Phenolphthalein
3,3-Bis(4-hydroxyphenyl)-1(3H)- isobenzofuranone
3,3-Bis(4-hydroxyphenyl)phthalide

Solution Concentration : 10.0 mg /L
Solvent : Water + 2mL 1N sodium hydroxide
lmax : 552 nm
Spectral Range : 900-190 nm
Slit Width : 2 nm
View UV-Vis Spectrum