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CHEBI:31991 - phenol red

ChEBI IDCHEBI:31991
ChEBI Namephenol red
Stars
Definition3H-2,1-Benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 4-hydroxyphenyl groups. A pH indicator changing colour from yellow below pH 6.8 to bright pink above pH 8.2, it is commonly used as an indicator in cell cultures and in home swimming pool test kits. It is also used in the (now infrequently performed) phenolsulfonphthalein (PSP) test for estimation of overall blood flow through the kidney.
Last Modified22 February 2017
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FormulaC19H14O5S
Net Charge0
Average Mass354.383
Monoisotopic Mass354.05619
SMILESO=S1(=O)OC(c2ccc(O)cc2)(c2ccc(O)cc2)c2ccccc21
InChIInChI=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
InChIKeyBELBBZDIHDAJOR-UHFFFAOYSA-N

Roles Classification

ChEBI Ontology
IUPAC Name 
4,4'-(1,1-dioxido-3H-2,1-benzoxathiole-3,3-diyl)diphenol
Synonyms  Source
PhenolsulfonphthaleinKEGG COMPOUND
Phenol redKEGG COMPOUND
α-hydroxy-α,α-bis(p-hydroxyphenyl)-o-toluenesulfonic acid γ-sultoneChEBI
3,3-bis(p-hydroxyphenyl)-3H-2,1-benzoxathiole 1,1-dioxideChEBI
PSPChemIDplus
4,4'-(3H-2,1-benzoxathiol-3-ylidene)bisphenol S,S-dioxideChemIDplus
Manual XrefsDatabases
C12600KEGG COMPOUND
D01200KEGG DRUG
3439DrugCentral
Registry NumbersSources
Beilstein:326470Beilstein
CAS:143-74-8KEGG COMPOUND
CAS:143-74-8ChemIDplus