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| CAS No.: | 150-76-5 |
|---|---|
| Name: | 4-Methoxyphenol |
| Molecular Structure: | |
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| Formula: | C7H8O2 |
| Molecular Weight: | 124.139 |
| Synonyms: | 4-Hydroxyanisole;Hydroquinone monomethyl ether;Mequinol [INN:DCF];Phenol, 4-methoxy-;p-Hydroxyanisole;p-Methoxyphenol;1-Hydroxy-4-methoxybenzene;4-Methoxyphenol;Monomethyl ether hydroquinone;NSC 4960;Novo-Dermoquinona;P-Guaiacol;PMF (antioxidant);Phenol, 4-methoxy-;UNII-6HT8U7K3AM;USAF AN-7;p-Guaiacol;p-Hydroxyanisole;Mequinol; |
| EINECS: | 205-769-8 |
| Density: | 1.109 g/cm3 |
| Melting Point: | 56 °C |
| Boiling Point: | 243 °C at 760 mmHg |
| Flash Point: | 120.8 °C |
| Solubility: | water: 40 g/L (25 °C) |
| Appearance: | white crystals |
| Hazard Symbols: |
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| Risk Codes: | 22-36-43 |
| Safety: | 24/25-26-37/39-46 |
| PSA: | 29.46000 |
| LogP: | 1.40080 |

4-(tert-butyldimethylsilyloxy)anisole


4-methoxy-phenol

| Conditions | Yield |
|---|---|
| With SO3H silica gel In n-heptane at 25℃; for 0.166667h; | 100% |
| With iodine In methanol for 13h; Ambient temperature; | 99% |
| With carbonochloridic acid 1-chloro-ethyl ester In methanol at 20℃; for 4h; | 99% |

allyl (4-methoxyphenyl) ether


4-methoxy-phenol

| Conditions | Yield |
|---|---|
| With aminomethyl resin-supported N-propylbarbituric acid; tetrakis(triphenylphosphine) palladium(0) In tetrahydrofuran at 70℃; | 100% |
| With tetrakis(triphenylphosphine) palladium(0); potassium carbonate In methanol at 20℃; for 12h; | 96% |
| With magnesium; lithium tert-butoxide In tetrahydrofuran at 20℃; for 12h; | 93% |

O-(4-Nitrobenzyl)-4-methoxyphenol


4-methoxy-phenol

| Conditions | Yield |
|---|---|
| With indium; ammonium chloride; zinc In ethanol; water for 3h; Reagent/catalyst; Reflux; chemoselective reaction; | 100% |
| With indium; ammonium chloride In ethanol for 18h; Debenzylation; Heating; | 81% |
| With indium; ammonium chloride In methanol for 18h; Heating; | 81% |

| Conditions | Yield |
|---|---|
| With N-ethyl-N,N-diisopropylamine In ethanol at 20℃; for 8h; Reagent/catalyst; Irradiation; Sonication; | 100% |
| With solid poly(N-vinylpyrrolidone)-hydrogen peroxide complex (PVD-H2O2 complex) In dichloromethane at 20℃; regioselective reaction; | 99% |
| With menadione; sodium hydrogencarbonate; sodium L-ascorbate In ethanol; water at 20℃; under 760.051 Torr; for 24h; pH=8.5; Darkness; Green chemistry; | 99% |

| Conditions | Yield |
|---|---|
| With triethylamine Photolysis; | 100% |
| With potassium carbonate In methanol at 20℃; for 0.5h; | 98% |
| With acetyl chloride In methanol at 20℃; for 2h; | 96% |

p-tert-butoxyanisole


4-methoxy-phenol

| Conditions | Yield |
|---|---|
| With sodium iodide; cerium(III) chloride In acetonitrile at 40℃; for 2h; | 100% |
| With erbium(III) triflate In methanol at 100℃; for 0.75h; Microwave irradiation; | 98% |

4-(tert-butoxycarbonyloxy)methoxybenzene


4-methoxy-phenol

| Conditions | Yield |
|---|---|
| With erbium(III) triflate In ethanol for 25h; Microwave irradiation; | 100% |
| With methanol; carbon tetrabromide; triphenylphosphine for 4h; Reflux; | 92% |
| With tetramethylammonium fluoride; 2-mercaptopyridine sodium salt In acetonitrile at 30 - 35℃; for 24h; Irradiation; Inert atmosphere; |

2-(4-methoxyphenoxy)tetrahydro-2H-pyran


4-methoxy-phenol

| Conditions | Yield |
|---|---|
| With methanol; Montmorillonite K-10 clay at 20℃; Methanolytic deprotection; | 99% |
| vanadium(III) chloride In methanol at 20℃; for 0.416667h; | 95% |
| With methanol at 20℃; for 0.5h; | 95% |

| Conditions | Yield |
|---|---|
| With formic acid In water at 120℃; Green chemistry; | A 97% B 99% |
| With 9,10-dihydroanthracene at 224.84℃; Kinetics; Product distribution; | |
| With hydrogen In hexane at 260℃; under 5250.53 Torr; for 10h; Autoclave; | A 93.6 %Chromat. B 82.9 %Chromat. |
| With isopropyl alcohol at 260℃; under 15001.5 Torr; for 4h; Autoclave; Inert atmosphere; Green chemistry; | A 85 %Chromat. B 88 %Chromat. |


4-methoxy-phenol

| Conditions | Yield |
|---|---|
| With carbon tetrabromide In methanol Irradiation; | 99% |
Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.
OSHA PEL: TWA 5 mg/m3
ACGIH TLV: TWA 5 mg/m3
1. Introduction of 4-Methoxyphenol
4-Methoxyphenol is a pink crystals or white waxy solid.
2. Properties of 4-Methoxyphenol
XLogP3: 1.3
H-Bond Donor: 1
H-Bond Acceptor: 2
EINECS: 205-769-8
Melting Point: 56 °C
Water Solubility: 40 g/L (25 °C)
Stability: Stable. Combustible. Incompatible with halogens, oxidizing agents.
Surface Tension: 38.6 dyne/cm
Density: 1.109 g/cm3
Flash Point: 120.8 °C
Enthalpy of Vaporization: 49.94 kJ/mol
Boiling Point: 243 °C at 760 mmHg
Vapour Pressure: 0.0211 mmHg at 25 °C
Product Categories: Liquid Crystal intermediates; Aromatic Ethers; Phenol&Thiophenol&Mercaptan; API intermediates; Biochemistry; Building Blocks for Liquid Crystals; Functional Materials; Phenols (Building Blocks for Liquid Crystals); Reagents for Oligosaccharide Synthesis
3. Toxicity of 4-Methoxyphenol
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | 250mg/kg (250mg/kg) | National Technical Information Service. Vol. AD691-490, | |
| rat | LD50 | oral | 1600mg/kg (1600mg/kg) | Kodak Company Reports. Vol. 21MAY1971, |
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