Description
Phenol Red sodium salt is a water soluble pH indicator used in the 6.8 (yellow) to 8.2 (red) range.
Product information
CAS Number: 34487-61-1
Molecular Weight: 376.36
Formula: C19H13NaO5S
Chemical Name: sodium 4-[3-(4-hydroxyphenyl)-1,1-dioxo-3H-2,1λ⁶-benzoxathiol-3-yl]benzen-1-olate
Smiles: [Na+].[O-]C1C=CC(=CC=1)C1(OS(=O)(=O)C2=CC=CC=C12)C1C=CC(O)=CC=1
InChiKey: HKHYOKBQJILTEI-UHFFFAOYSA-M
InChi: InChI=1S/C19H14O5S.Na/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;/q;+1/p-1
Technical Data
Appearance: Solid Power
Purity: ≥98% (or refer to the Certificate of Analysis)
Solubility: DMSO : 5 mg/mL (13.29 mM; Need ultrasonic). H2O : < 0.1 mg/mL (insoluble).
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis
Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.
Shelf Life: ≥12 months if stored properly.
Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.
Drug Formulation: To be determined
HS Tariff Code: 382200
How to use
In Vitro:
Phenol Red sodium salt is commonly employed as a cell tissue culture pH marker. Under normal conditions, phenol red added to the growth medium will have a pink-red color. Dying cells or overgrowth of contaminants will cause a change in pH resulting in a change in indicator color. Phenol red bears a structural resemblance to some nonsteroidal estrogens and has significant estrogenic activity at the concentrations (15-45 μM) at which it is found in tissue culture media. Phenol red binds to the estrogen receptor of MCF-7 human breast cancer cells and stimulates the proliferation of estrogen receptor-positive MCF-7 breast cancer cells in a dose-dependent manner but has no effect on the growth of estrogen receptor-negative MDA-MB-231 breast cancer cells. Phenol red is a simple, rapid and inexpensive method for the measurement of hydrogen peroxide produced by cells in culture. The assay is based on the horseradish peroxidase-mediated oxidation of phenol red by hydrogen peroxide which results in the formation of a compound demonstrating increased absorbance at 610 nm.
Products are for research use only. Not for human use.
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