Cresol Red
Chemical compound / From Wikipedia, the free encyclopedia
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Cresol red (full name: o-cresolsulfonephthalein)[1] is a triarylmethane dye frequently used for monitoring the pH in aquaria.
Cresol red (pH indicator) | ||
below pH 7.2 | above pH 8.8 | |
7.2 | ⇌ | 8.8 |
Quick Facts Names, Identifiers ...
Names | |
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Preferred IUPAC name
3,3-Bis(4-hydroxy-3-methylphenyl)-2,1λ6-benzoxathiole-1,1(3H)-dione | |
Identifiers | |
3D model (JSmol) |
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ChEBI | |
ChemSpider |
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ECHA InfoCard | 100.015.513 |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C21H17NaO5S | |
Molar mass | 382.43 g/mol |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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