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

A14845 4-Methoxyphenol, 98+%

CAS-Nummer
150-76-5
Synonyme
Hydroquinone monomethyl ether
MEHQ

Größe Preis ($) Menge Verfügbarkeit
50g 13,75
250g 28,41
1000g 81,54
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4-Methoxyphenol, 98+%

MDL
MFCD00002332
EINECS
205-769-8

Chemische Eigenschaften

Formel
C7H8O2
Molmasse
124.14
Schmelzpunkt
55-58°
Siedepunkt
243-246°
Flammpunkt
132°(269°F)
Dichte
1.550
Löslichkeit
Soluble in acetone, ethyl acetate, ethanol, ether, benzene and carbon tetrachloride.

Anwendungen

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.

Bemerkungen

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

Literaturverweise

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 Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H302-H319-H317

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

Sicherheitshinweise: 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.

Weitere Referenzen

Beilstein
507924
Harmonized Tariff Code
2909.50
TSCA
Yes
RTECS
SL7700000

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