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phenol red

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phe·nol·sul·fon·phthal·e·in (PSP),

(fē'nol-sŭl'fōn-thal'ē-in, -thal'ēn),
An indicator in tissue culture media (yellow at pH 6.8, red at pH 8.4); occurs as a bright to dark red crystalline powder; in the past given by parenteral injection as a test for renal function.
Synonym(s): phenol red
Farlex Partner Medical Dictionary © Farlex 2012

phenol red

n.
A red, water-soluble dye, C19H14O5S, used as an acid-base indicator and in medicine to test kidney function.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
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References in periodicals archive
U-shape suppressive effect of phenol red on the epileptiform burst activity via activation of estrogen receptors in primary hippocampal culture.
Bone marrow precursors from C57BL/6 (B6: black bars) or B6.NZM.Sle1.Sle2.Sle3 (TCSle: white bars) female and male mice were cultured with GM-CSF in standard phenol red/media conditions (a, c, d) or media lacking phenol red and void of steroids (charcoal-treated FBS: hormone depleted) (b, c, d).
The PET fibers were dissolved in benzyl alcohol, to which chloroform was added, the solution was neutralized by 1/10 N of a sodium hydrite benzyl alcohol solution using Phenol Red as an indicator, and then the amount of carboxyl end groups was determined.
Similar to other studies evaluating topical rocuronium in avian species, we used the Schirmer tear test rather than the phenol red thread test despite the smaller size of the phenol red thread.
For the determination of secretolytic activity tracheobronchial secretion of intraperitoneally injected phenol red was determined in mice, while antiinflammatory action was assessed in an acute bacterial bronchitis model in rats.
Acid production from ribose, L-arabinose, and galactose was also tested by using phenol red base medium (Difco Laboratories, Detroit, MI), supplemented with 1% (w/v) sugar, after 48 h of incubation at 37[degrees]C.
Tear production was measured by modified Schirmer tear test I (n = 9 birds) or phenol red thread test (n = 8 birds), and intraocular pressure was measured indirectly by applanation (Tonopen-XL) (n = 9 birds) or rebound (TonoVet) (n = 8 birds) tonometry.
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