Phenol red (Phenolsulfonphthalein) is 3H-2,1-Benzoxathiole 1,1-dioxide whereby both of the hydrogen atoms at position 3 are replaced by 4-hydroxyphenyl groups. It
is a PH indicator commonly used in cell culture (changing colour from yellow below pH 6.8 to bright pink above pH 8.2). Phenole red also showed a weak estrogen mimicking actions.
Catalog Number: ZXB-09-270
CAS Number: 143-74-8
Synonyms: Phenolsulfonphthalein, PSP
Molecular Weight: 354.4
PubChem Chemical ID: 4766
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