Product Name
2-Aminophenol
Category
Ligands for Functional Metal Complexes
Description
O-aminophenol appears as off-white crystals or beige powder. (NTP, 1992);COLOURLESS-TO-WHITE CRYSTALS. TURNS DARK ON EXPOSURE TO AIR OR LIGHT.
Molecular Weight
109.13g/mol
Molecular Formula
C6H7NO;C6H4(OH)(NH2);C6H7NO
Canonical SMILES
C1=CC=C(C(=C1)N)O
InChI
InChI=1S/C6H7NO/c7-5-3-1-2-4-6(5)8/h1-4,8H,7H2
InChI Key
CDAWCLOXVUBKRW-UHFFFAOYSA-N
Boiling Point
Sublimes at 307° F at 11 mm Hg (NTP, 1992);Sublimes at 153 °C
Melting Point
342 to 343 °F (NTP, 1992);174.0 °C;170-174 °C
Flash Point
168 °C (334 °F) - closed cup;>175 °C c.c.
Density
1.328 (NTP, 1992);1.328 g/cu cm at 25 °C;1.3 g/cm³
Solubility
less than 0.1 mg/mL at 70° F (NTP, 1992);0.18 M;1 g dissolves in 50 mL cold water, 23 mL alcohol;Slightly soluble in toluene, chloroform, and cold water; soluble in ethanol, and hot water, very soluble in acetonitrile, ethyl acetate, acetone, dimethyl sulfoxide;Soluble in ethyl ether; very soluble in ethanol; slightly soluble in benzene, trifluoroacetic acid;In water, 2.0X10+3 mg/L at 20 °C;Solubility in water, g/100ml at 20 °C: 1.7
Color/Form
Crystals, rapidly becoming brown;White orthorhombic bipyramidal needles from benzene or water;White crystals; turn brown with age;COLORLESS RHOMBIC NEEDLES OR PLATES
Covalently-Bonded Unit Count
1
Exact Mass
109.052764g/mol
Log P
0.62 (LogP);log Kow = 0.62;0.62
MeSH Entry Terms
2-aminophenol;2-aminophenol, hydrochloride;2-aminophenol, ion (1+);2-aminophenol, monopotassium salt;2-aminophenol, monosodium salt;o-aminophenol;ortho-aminophenol
Monoisotopic Mass
109.052764g/mol
Other Experimental
MP: 172-173 °C; sublimes on further heating;At reduced pressure (1.47 kPa), 2-aminophenol sublimes rapidly at 153 °C without decomposition;Heat of formation = -191 kJ/mol;LOW VOLATILITY;Crystals readily becoming gray on exposure to light. Freely soluble in water or alcohol /o-Aminophenol hydrochloride/;Henry's Law constant = 2X10-10 atm-cu m/mole at 25 °C (est);Hydroxyl radical reaction rate constant = 7.4X10-11 cu cm/molecule-sec at 25 °C (est)
Stability
Crystals readily becoming gray on exposure to light /Hydrochloride/
Vapor Density
Relative vapor density (air = 1): 3.77
Vapor Pressure
5X10-4 Hg at 25 °C (est);negligible