| Agent Name |
Phenol red |
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| Alternative Name |
Phenolsulfonphthalein |
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| CAS Number |
143-74-8 |
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| Formula |
C19-H14-O5-S |
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| Major Category |
Other Chemicals |
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| Synonyms |
3H-2,1-Benzoxathiole, 3,3-bis(4-hydroxyphenyl)-, 1,1-dioxide; 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)diphenol S,S-dioxide; Fenolipuna; PSP; PSP (indicator); Phenol Red; Phenol, 4,4-(3H-2,1-benzoxathiol-3-ylidene)di-, S-S-dioxide; Phenolsulfonphthalein; Phenolsulphonphthalein; Sulfonphthal; Sulphental; Sulphonthal; [ChemIDplus] |
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| Category |
Dyes, Indicator |
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| Description |
Odorless, red solid; Available as pure compound, soluble monosodium salt, and dilute solutions; [CHEMINFO] |
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| Sources/Uses |
Used as a pH indicator and marker of kidney function and other physiological functions; [CHEMINFO] Used as a pH indicator for the pH range of 6.4-8.2; [Ullmann] |
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| Comments |
Dust may be irritating if inhaled; [CHEMINFO] |
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| Exposure Assessment |
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| Vapor Pressure |
6.22 x 10 -13 mm Hg |
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| Explanatory Notes |
mp = >572 deg F; VP = probably near zero; [CHEMINFO] |
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| Links to Other NLM Databases |
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