| 1,4-Dimethoxybenzene | |
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1,4-Dimethoxybenzene |
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Other names
Hydroquinone dimethyl ether; p-Methoxyanisole; 2-Benzimidazolinone; Dimethyl ether hydroquinone; USAF AN-9; Dimethylhydroquinone ether; Quinol dimethyl ether; p-Dimethoxybenzene |
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| Identifiers | |
| CAS number | 150-78-7 |
| ChemSpider | 8666 |
| UNII | 24WC6T6X0G |
| RTECS number | CZ6650000 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | C8H10O2 |
| Molar mass | 138.16 g mol−1 |
| Appearance | White crystals |
| Density | 1.053 g/cm3[1] |
| Melting point |
53-57 °C, 326-330 K, 127-135 °F ([1]) |
| Boiling point |
213 °C, 486 K, 415 °F ([1]) |
| Solubility in water | Slightly soluble |
| Viscosity | 1.04 cP at 65 °C |
| Structure | |
| Molecular shape | Planar |
| Hazards | |
| EU classification | Irritant (Xi) |
| R-phrases | R36 R37 R38 |
| S-phrases | S26 S37 S39 |
| Flash point | 125 °C (257 °F) |
| Autoignition temperature |
795 °C (1,463 °F)[1] |
| Related compounds | |
| (verify) (what is: /?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
1,4-Dimethoxybenzene is the para form of dimethoxybenzene, a volatile aromatic ether with a sweet floral odor. It occurs naturally in willow (Salix) and zucchini (Cucurbita pepo). It appears to attract bees as it has a powerful response in their antenna.
Dimethoxybenzene is useful as an intermediate in synthesis of pharmaceuticals as well as other organic molecules. It is used in some paints and as a diazo dye. Cosmetically it is used on greasy skin, and with sulfur to treat acne, or as a dandruff treatment. Because of its floral odor, it is useful in perfumes and flavors. It can be used as a developer in black and white film, and as a base in synthesizing catecholamines and phenethylamines.
DMB was identified as the major psychoactive chemical in musk willow.[2]