Phenol Red (>90%)

143-74-8

Phenolsulfonphthalein; 3,3-bis(4-hydroxyphenyl)-3H-2,1-benzoxathiole 1,1-dioxide; PSP

Causes skin irritation

Oc1ccc(cc1)C2(OS(=O)(=O)c3ccccc23)c4ccc(O)cc4

C19 H14 O5 S

354.38

InChI=1S/C19H14O5S/c20-15-9-5-13(6-10-15)19(14-7-11-16(21)12-8-14)17-3-1-2-4-18(17)25(22,23)24-19/h1-12,20-21H

IUPAC name: 4-[3-(4-hydroxyphenyl)-1,1-dioxo-2,1λ^{6}-benzoxathiol-3-yl]phenol

Room Temperature

+4°C