Chlorophenol red
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| Chlorophenol red | |
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| IUPAC name | 2-chloro-4-[3-(3-chloro-4-hydroxyphenyl)-1,1-dioxobenzo[c]oxathiol-3-yl]phenol |
| Identifiers | |
| CAS number | [4430-20-0] |
| PubChem | |
| SMILES | C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC(=C(C=C3)O)Cl)C4=CC(=C(C=C4)O)Cl |
| Properties | |
| Molecular formula | C19H12Cl2O5S |
| Molar mass | 423.27 g/mol |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Chlorophenol red is an indicator dye that changes color from yellow to violet in the pH range 4.8 to 6.7. The lamda max is at 572 nm.
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