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

A14845 4-Methoxyphenol, 98+%

Codice CAS
150-76-5
Sinonimi
Hydroquinone monomethyl ether
MEHQ

Dimensioni Prezzo ($) Quantità Disponibilità
50g 14,90
250g 29,80
1000g 93,80
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4-Methoxyphenol, 98+%

MDL
MFCD00002332
EINECS
205-769-8

Proprietà chimiche

Formula
C7H8O2
Peso formula
124.14
Punto di fusione
55-58°
Punto di ebollizione
243-246°
Punto di infiammabilità
132°(269°F)
Densità
1.550
Solubilità
Soluble in acetone, ethyl acetate, ethanol, ether, benzene and carbon tetrachloride.

Applicazioni

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.

Note

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

Letteratura

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.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H302-H319-H317

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

Dichiarazioni precauzionali: P260-P201-P280a-P304+P340-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Wear protective gloves and eye/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Beilstein
507924
Codice tariffe armonizzato
2909.50
TSCA
Yes
RTECS
SL7700000

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