page_title: Phenol red
section_title: Estrogen mimic
hierarchical_section_title: Phenol red / Estrogen mimic
caption_attribution_description: English: A swimming pool test kit with phenol red and orthotolidine indicator solution (OTO)
context_page_description: Phenol red is a pH indicator frequently used in cell biology laboratories.
context_section_description: Phenol red is a weak estrogen mimic, and in cell cultures can enhance the growth of cells that express the estrogen receptor. It has been used to induce ovarian epithelial cells from post-menopausal women to differentiate into cells with properties of oocytes (eggs), with potential implications for both fertility treatment and stem cell research.
caption: A commercial test kit for swimming pools with phenol red and an orthotolidine indicator solution
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