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150-76-5 - 4-Methoxyphenol, 98+% - Hydroquinone monomethyl ether - MEHQ - A14845 - Alfa Aesar

A14845 4-Methoxyphenol, 98+%

CAS Number
150-76-5
Synonyms
Hydroquinone monomethyl ether
MEHQ

Size Price ($) Quantity Availability
50g 13.75
250g 28.41
1000g 81.54
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4-Methoxyphenol, 98+%

MDL
MFCD00002332
EINECS
205-769-8

Chemical Properties

Formula
C7H8O2
Formula Weight
124.14
Melting point
55-58°
Boiling Point
243-246°
Flash Point
132°(269°F)
Density
1.550
Solubility
Soluble in acetone, ethyl acetate, ethanol, ether, benzene and carbon tetrachloride.

Applications

4-Methoxyphenol is an active ingredient and used in dermatology. It is employed as a pharmaceutical drug in skin depigmentation. It is used as polymerization inhibitors. For example, in the radical polymerization of acryaltes and styrene monomers. It is also used as an intermediate in the preparationagrochemicals, liquid crystals. It acts as a stabilizer for the formulation of inks, toners and adhesives. It is mainly used as an additive for textile and leather industries.

Notes

Moisture sensitive. Store in a cool place. Keep the container tightly closed. Incompatible with halogens and oxidizing agents.

Literature References

For a study of the direct dilithiation of alkoxyphenols, see: J. Org. Chem., 55, 3902 (1990).

Primary OH groups can be protected as 4-methoxyphenyl ethers by Mitsunobu alkylation. These are stable to aqueous acid or base at 1000, high pressure hydrogenation, ozonolysis, LiAlH4, or Cr(VI) reagents. Deprotection can be effected with CAN: Tetrahedron Lett., 26, 6291 (1985); 29, 1389 (1988), or anodic oxidation: Carbohydr. Res., 277, 321 (1995).

/n

Swiech, O.; Mieczkowska, A.; Chmurski, K.; Bilewicz, R. Intermolecular Interactions between Doxorubicin and β-Cyclodextrin 4-Methoxyphenol Conjugates. J. Phys. Chem. B 2012, 116 (6), 1765-1771.

Wang, YH.; Avonto, C.; Avula, B; Wang, M.; Rua, D.; Khan, I. Quantitative Determination of alpha-Arbutin, beta-Arbutin, Kojic Acid, Nicotinamide, Hydroquinone, Resorcinol, 4-Methoxyphenol, 4-Ethoxyphenol, and Ascorbic Acid from Skin Whitening Products by HPLC-UV. J. AOAC Int. 2015, 98 (1), 5-12.

GHS Hazard and Precautionary Statements

Hazard Statements: H302-H319-H317

Harmful if swallowed. Causes serious eye irritation. May cause an allergic skin reaction.

Precautionary Statements: P262-P280a-P301+P310-P305+P351+P338-P315

Do not get in eyes, on skin, or on clothing. Wear protective gloves and eye/face protection. IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Get immediate medical advice/attention.

Other References

Beilstein
507924
Harmonized Tariff Code
2909.50
TSCA
Yes
RTECS
SL7700000

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