4-Methoxyphenol
![4-Methoxyphenol Structure](CAS/GIF/150-76-5.gif)
- CAS No.
- 150-76-5
- Chemical Name:
- 4-Methoxyphenol
- Synonyms
- MEHQ;MEQUINOL;HYDROQUINONE MONOMETHYL ETHER;P-HYDROXYANISOLE;P-METHOXYPHENOL;Monomethyl ether hydroquinone;PMF;p-Hydroxyanisol;4-HYDROXYANISOLE;Hydroquinone methyl ether
- CBNumber:
- CB7853133
- Molecular Formula:
- C7H8O2
- Molecular Weight:
- 124.14
- MOL File:
- 150-76-5.mol
- Modify Date:
- 2024/6/19 22:55:17
Melting point | 56 °C |
---|---|
Boiling point | 243 °C(lit.) |
Density | 1,55 g/cm3 |
vapor density | 4.3 (vs air) |
vapor pressure | <0.01 mm Hg ( 20 °C) |
refractive index | 1.5286 (estimate) |
Flash point | >230 °F |
storage temp. | Store below +30°C. |
solubility | Soluble in acetone, ethyl acetate, ethanol, ether, benzene and carbon tetrachloride. |
form | Liquid |
pka | 10.21(at 25℃) |
color | Clear colorless to pale yellow |
PH | 5.1 (30g/l, H2O, 20℃) |
Odor | at 1.00?%?in?dipropylene glycol. phenolic |
Odor Threshold | 0.0027ppm |
Water Solubility | 40 g/L (25 ºC) |
BRN | 507924 |
Exposure limits |
ACGIH: TWA 5 mg/m3 NIOSH: TWA 5 mg/m3 |
Stability | Stable. Combustible. Incompatible with halogens, oxidizing agents. |
InChIKey | NWVVVBRKAWDGAB-UHFFFAOYSA-N |
LogP | 1.3 at 20℃ |
CAS DataBase Reference | 150-76-5(CAS DataBase Reference) |
NIST Chemistry Reference | Mequinol(150-76-5) |
EPA Substance Registry System | p-Methoxyphenol (150-76-5) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() GHS07 |
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Signal word | Warning | |||||||||
Hazard statements | H302-H317-H319-H412 | |||||||||
Precautionary statements | P261-P273-P280-P301+P312-P302+P352-P305+P351+P338 | |||||||||
Hazard Codes | Xn | |||||||||
Risk Statements | 22-36-43 | |||||||||
Safety Statements | 24/25-26-37/39-46 | |||||||||
OEB | B | |||||||||
OEL | TWA: 5 mg/m3 | |||||||||
WGK Germany | 1 | |||||||||
RTECS | SL7700000 | |||||||||
Autoignition Temperature | 789 °F | |||||||||
TSCA | Yes | |||||||||
HS Code | 29095090 | |||||||||
Toxicity | LD50 orally in Rabbit: 1600 mg/kg | |||||||||
NFPA 704 |
|
4-Methoxyphenol price More Price(23)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich(India) | M18655 | 4-Methoxyphenol ReagentPlus?, 99% | 150-76-5 | 5G | ₹761 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | M18655 | 4-Methoxyphenol ReagentPlus?, 99% | 150-76-5 | 100G | ₹1948.5 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | M18655 | 4-Methoxyphenol ReagentPlus?, 99% | 150-76-5 | 500G | ₹3658.85 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | M18655 | 4-Methoxyphenol ReagentPlus?, 99% | 150-76-5 | 1KG | ₹6343.45 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 8.21233 | 4-Methoxyphenol for synthesis | 150-76-5 | 5G | ₹2060 | 2022-06-14 | Buy |
4-Methoxyphenol Chemical Properties,Uses,Production
Chemical Properties
4-Methoxyphenol is a colorless to white, waxy solid with an odor of caramel and phenol. It is a combustible solid. It is used as an inhibitor for acrylic monomers and as a stabilizer for chlorinated hydrocarbons, ethyl cellulose, and UV inhibitors.
Synthesis
4-Methoxyphenol was synthesised according to Oxidation with H2O2 and a Diselenide catalyst.
p-Anisaldehyde (50 mmol) is dissolved in CH2Cl2 (100mL) and (o-NO2PhSe)2 (2 mmol) and 30% H2O2 (13mL, 128 mmol) are added. The mixture is stirred magnetically at room temperature (water bath) for 30 minutes. Insoluble catalyst is removed by filtration and washed with CH2Cl2 (20mL) and water (20mL). It can be reused after drying. To the filtrate and washings, water (100mL) is added, and the layers are separated after shaking. The organic layer is washed subsequently with 10% NaHSO3 (100mL), 10% Na2CO3 (100mL), water (100mL) and dried over Na2SO4. 4-methoxyphenol is obtained by alkaline hydrolysis of the residue. Yield: 93%.
Indications
Mequinol (4-hydroxyanisole) is a substrate of the enzyme tyrosinase and acts as a competitive inhibitor of melanogenesis.
Reactions
4-methoxyphenol(4-MP) may be used in the synthesis of butylated hydroxy anisoles via alkylation with methyl tert-butyl ether over a non-zeolitic solid acidic catalyst. This process is eco-friendly when compared to the Friedel-Crafts alkylation reaction. 4-MP may also react with aqueous nitrous acid to form 2-nitro-4-methoxyphenol and benzoquinone in varying ratios depending on the reaction conditions. 4-MP can be used as a building block in designing β-cyclodextrin 4-methoxyphenol conjugates that can be potential ligands for drug complexation.
General Description
Pink crystals or white waxy solid.
Air & Water Reactions
Sensitive to moisture. Water soluble.
Reactivity Profile
4-Methoxyphenol can react with oxidizing materials.
Hazard
Eye irritant and skin damage.
Health Hazard
4-Methoxyphenol is expected to cause liver and renal toxicity with narcosis, but only at high levels of exposure.
Fire Hazard
Combustible
Safety Profile
Poison by intraperitoneal route. A skin irritant. When heated to decomposition it emits acrid smoke and fumes. See also ETHERS.
Shipping
UN3335 Aviation regulated solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.
Purification Methods
Crystallise 4-methoxyphenol from *benzene, pet ether or H2O, and dry it under vacuum over P2O5 at room temperature. Sublime it in vacuo. [Wolfenden et al. J Am Chem Soc 109 463 1987, Beilstein 6 IV 5717.]
4-Methoxyphenol Preparation Products And Raw materials
Raw materials
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GLR Innovations | +91 9891111994 | New Delhi, India | 4542 | 58 | Inquiry |
chromsynth pvt ltd | +919704220374 | Hyderabad, India | 244 | 58 | Inquiry |
JAY CHEMICALS | +91-9819633090 +91-9819633090 | Maharashtra, India | 85 | 58 | Inquiry |
Cefa-Cilinas Biotics Pvt Ltd | +91-7875033155 +91-8080701561 | Maharashtra, India | 121 | 58 | Inquiry |
JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
Clean Science and Technology Limited | +91-2026898122 +91-2026899953 | Maharashtra, India | 8 | 58 | Inquiry |
Otto Chemie Pvt Ltd | +91-2222070099 +91-2266382599 | Maharashtra, India | 429 | 58 | Inquiry |
Urmila Chemopharma | +91-9819537618 +91-8928751722 | Maharashtra, India | 25 | 58 | Inquiry |
S D Fine Chem Limited | +91-9323715856 +91-9323715856 | Maharashtra, India | 368 | 58 | Inquiry |
Loba Chemie Pvt., Ltd. | 91-22-66636663 | Maharashtra, India | 766 | 58 | Inquiry |
Supplier | Advantage |
---|---|
GLR Innovations | 58 |
chromsynth pvt ltd | 58 |
JAY CHEMICALS | 58 |
Cefa-Cilinas Biotics Pvt Ltd | 58 |
JSK Chemicals | 58 |
Clean Science and Technology Limited | 58 |
Otto Chemie Pvt Ltd | 58 |
Urmila Chemopharma | 58 |
S D Fine Chem Limited | 58 |
Loba Chemie Pvt., Ltd. | 58 |
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