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Names | |||
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Preferred IUPAC name
3-Aminophenol
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Other names
m-Aminophenol (no longer recommended)
3-Hydroxyaniline m-Hydroxyaniline |
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Identifiers | |||
591-27-5 | |||
3D model (Jmol) | Interactive image | ||
ChEBI | CHEBI:28924 | ||
ChEMBL |
ChEMBL269755 ChEMBL376136 |
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ChemSpider | 11080 | ||
ECHA InfoCard | 100.008.830 | ||
EC Number | 209-711-2 | ||
KEGG | C05058 | ||
PubChem | 11568 | ||
UNII | L3WTS6QT82 | ||
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Properties | |||
C6H7NO | |||
Molar mass | 109.13 g/mol | ||
Appearance | White orthorhombic crystals | ||
Density | 1.195 g/cm3 | ||
Melting point | 120 to 124 °C (248 to 255 °F; 393 to 397 K) | ||
Boiling point | 164 °C (327 °F; 437 K) at 11 mmHg | ||
Acidity (pKa) | 4.17; 9.87 | ||
Hazards | |||
R-phrases | R20/22 R51/53 | ||
S-phrases | S28 S61 | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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what is ?) | (|||
Infobox references | |||
3-Aminophenol is an organic compound with formula C6H4(NH2)(OH). It is an aromatic amine and aromatic alcohol. It is the meta isomer of 2-aminophenol and 4-aminophenol.
3-Aminophenol can be prepared by caustic fusion of 3-aminobenzenesulfonic acid (i.e. heating with NaOH to 245 °C for 6 hours) or from resorcinol via a substitution reaction with ammonium hydroxide.
One of the most relevant applications of the substance is the synthesis of 3-(diethylamino)phenol, key intermediate for the preparation of several fluorescent dyes (e.g., Rhodamine B). Other uses for the compound include hair dye colorants and stabilizers for chlorine-containing thermoplastics.