Phenol Red sodium salt|34487-61-1|Phenolsulfonephthalein sodium salt|Sodium 4-(3-(4-hydroxyphenyl)-1,1-dioxido-3H-benzo[c][1,2]oxathiol-3-yl)phenolate|MFCD00066901|DTXSID2044420|Phenol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis-, monosodium salt
Specifications & Purity
AR
Biochemical and Physiological Mechanisms
Water soluble pH indicator used in the 6.8 (yellow) to 8.2 (red) range. 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 contamina
Shipped In
Normal
Grade
AR
Note
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
Product Description
Phenol Red sodium salt is a water soluble pH indicator used in the 6.8 (yellow) to 8.2 (red) range. A small molecule pH indicator.
Soluble in water yielding a dark red solution (25 mg/ml), alcohol (4 mg/ml), methanol, ethanol (200 mg/ml), and aqueous alkali hydroxides or carbonates with formation of a red colored solution.
I2228210