1,4-Dimethoxybenzene
- CAS No.
- 150-78-7
- Chemical Name:
- 1,4-Dimethoxybenzene
- Synonyms
- DIMETHYLHYDROQUINONE;dimethoxybenzene;P-DIMETHOXYBENZENE;4-Methoxyanisole;1,4-dimethoxy-benzen;1,4-dimethoxybezene;1,4-Dimethoxybenzol;HYDROQUINONE DIMETHYL ETHER;1,3-Bis(hydroxymethyl)-2-benzimidazolinone;NSC 7483
- CBNumber:
- CB7253689
- Molecular Formula:
- C8H10O2
- Molecular Weight:
- 138.16
- MDL Number:
- MFCD00008401
- MOL File:
- 150-78-7.mol
- MSDS File:
- SDS
| Melting point | 54-56 °C(lit.) |
|---|---|
| Boiling point | 213 °C(lit.) |
| Density | 1.053 g/mL at 25 °C(lit.) |
| vapor density | 4.8 (vs air) |
| vapor pressure | <1 mm Hg ( 20 °C) |
| FEMA | 2386 | P-DIMETHOXYBENZENE |
| refractive index | 1.5231 (estimate) |
| Flash point | 98 °C |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | dioxane: 0.1 g/mL, clear |
| form | Crystalline Powder, Crystals, or Flakes |
| Specific Gravity | 1.053 |
| color | White |
| PH | 7 (H2O, 20℃)(saturated solution) |
| Odor | at 1.00 % in dipropylene glycol. sweet green new mown hay fennel |
| Odor Type | green |
| explosive limit | 1.2-5.6%(V) |
| Water Solubility | 0.8 g/l (20 ºC) |
| Sensitive | Light Sensitive |
| JECFA Number | 1250 |
| BRN | 774605 |
| Dielectric constant | 4.5（23℃） |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
| LogP | 2.08 at 20℃ |
| Substances Added to Food (formerly EAFUS) | P-DIMETHOXYBENZENE |
| CAS DataBase Reference | 150-78-7(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | 24WC6T6X0G |
| NIST Chemistry Reference | Benzene, 1,4-dimethoxy-(150-78-7) |
| EPA Substance Registry System | p-Dimethoxybenzene (150-78-7) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319 | |||||||||
| Precautionary statements | P280g-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313 | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36-24/25 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | CZ6650000 | |||||||||
| Autoignition Temperature | 1463 °F | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 29093090 | |||||||||
| Hazardous Substances Data | 150-78-7(Hazardous Substances Data) | |||||||||
| NFPA 704 |
|
1,4-Dimethoxybenzene price More Price(30)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | W238600 | 1,4-Dimethoxybenzene 99%, FG | 150-78-7 | 1kg | $77.9 | 2024-03-01 | Buy |
| Sigma-Aldrich | W238600 | 1,4-Dimethoxybenzene 99%, FG | 150-78-7 | 5kg | $336 | 2024-03-01 | Buy |
| Sigma-Aldrich | W238600 | 1,4-Dimethoxybenzene 99%, FG | 150-78-7 | 10Kg | $570 | 2024-03-01 | Buy |
| Sigma-Aldrich | D131350 | 1,4-Dimethoxybenzene ReagentPlus , 99% | 150-78-7 | 1kg | $56 | 2024-03-01 | Buy |
| Sigma-Aldrich | 54306 | 1,4-Dimethoxybenzene analytical standard | 150-78-7 | 100mg | $82.2 | 2024-03-01 | Buy |
1,4-Dimethoxybenzene Chemical Properties,Uses,Production
Chemical Properties
p-Dimethoxybenzene has a bitter taste.
Chemical Properties
Hydroquinone Dimethyl Ether occurs in hyacinth oil and has also been identified
in tea. It is a white, crystalline solid (mp 57–58°C) with an intensely sweet,
somewhat herbal, nut-like odor.
Hydroquinone dimethyl ether is prepared by etherification of hydroquinone and
is used in soap perfumes.
Chemical Properties
white crystals or powder
Occurrence
Reported found in hyacinth (Hyacinthus orientalis L.) essential oil, Rhodophyllus icterius, papaya, peppermint oil, green tea, cherimoya and cooked shrimp
Uses
Weathering agent in paints and plastics, fixative in perfumes, dyes, resin intermediate, cosmetics, especially suntan preparations, flavoring.
Uses
1,4-Dimethoxybenzene is used as Pharmaceutical Intermediate. It is used in some paints and as a diazo dye. It is also used in perfumes and flavors in order to its floral odor. In addition, it is used on greasy skin, and with sulfur to treat acne, or as a dandruff treatment.
Preparation
By methylation of hydroquinone using dimethyl sulfate and alkali.
Definition
ChEBI: 1,4-Dimethoxybenzene is a dimethoxybenzene.
Synthesis Reference(s)
Journal of the American Chemical Society, 83, p. 1251, 1961 DOI: 10.1021/ja01466a056
General Description
Colorless crystals.
Air & Water Reactions
Slightly water soluble .
Reactivity Profile
1,4-Dimethoxybenzene is an ether. Ethers may react violently with strong oxidizing agents. In other reactions, which typically involve the breaking of the carbon-oxygen bond, ethers are relatively inert.
Flammability and Explosibility
Not classified
Synthesis
An aqueous solution of sodium hydroxide (40%,175 ml) is added dropwiseduring 3 hr at 18-22° to a well stirred mixture of hydroquinone (50 g,0.45mole)，sodium hydrosulphite (2.0 g,0.115 mole), dimethyl sulphate (110ml,146.63 g,1.16 mole) and alcohol (150 ml). Ice (1 kg) is added and the reaction mixture left overnight at room temperature. It is extracted withether (2 × 200 ml). The ether extract is washed with water,dried(anhydrous sodium sulphate) and distilled.1,4-Dimethoxy benzene isobtained as an oil. Yield 52.75 g (84.1%).It solidifies on cooling and iscrystallised from ether-petroleum ether as shining needles. M.p. 55-56°.
Purification Methods
Steam distil 1,4-dimethoxybenzene, then crystallise it from hexane or *benzene, and from MeOH or EtOH, but these are wasteful due to high solubilities. Dry it under vacuum. It also sublimes under vacuum. [Beilstein 6 IV 5718.]
1,4-Dimethoxybenzene Preparation Products And Raw materials
Raw materials
Preparation Products
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| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| ShanDong Look Chemical Co.,Ltd. | +8617653113219 | sales01@sdlookchemical.com | China | 2737 | 58 |
| Hebei Weibang Biotechnology Co., Ltd | +8615531157085 | abby@weibangbio.com | China | 8810 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-13131129325 | sales1@chuanghaibio.com | China | 5889 | 58 |
| Changzhou waston chemical technology Co.,Ltd | +86-051985861892 +8618112881323 | info@wastonchem.com | China | 260 | 58 |
| Hebei Kingfiner Technology Development Co.Ltd | +86-15532196582 +86-15373005021 | lisa@kingfinertech.com | China | 3010 | 58 |
| Hebei Xinsheng New Material Technology Co., LTD. | +86-16632316109 | xinshengkeji@xsmaterial.com | China | 1085 | 58 |
| Hebei Jingbo New Material Technology Co., Ltd | +8619931165850 | hbjbtech@163.com | China | 1000 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20284 | 58 |
| Hebei Saisier Technology Co., LTD | +86-18400010335 +86-18034520335 | admin@hbsaisier.cn | China | 1015 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3002 | 58 |
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- Jan 3，2024
View Lastest Price from 1,4-Dimethoxybenzene manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2024-12-23 | 1,4-Dimethoxybenzene
150-78-7
|
US $100.00-75.00 / kg | 1kg | 99% | 5000 | HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD | |
 |
2024-12-23 | 1,4-Dimethoxybenzene
150-78-7
|
US $10.00 / kg | 1kg | 99% | 20ton | Hebei Zhuanglai Chemical Trading Co.,Ltd | |
 |
2024-12-20 | 1,4-Dimethoxybenzene
150-78-7
|
US $6.00 / kg | 1kg | 99% | 2000KG/Month | HebeiShuoshengImportandExportco.,Ltd |
-
- 1,4-Dimethoxybenzene
150-78-7
- US $100.00-75.00 / kg
- 99%
- HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
-
- 1,4-Dimethoxybenzene
150-78-7
- US $10.00 / kg
- 99%
- Hebei Zhuanglai Chemical Trading Co.,Ltd
-
- 1,4-Dimethoxybenzene
150-78-7
- US $6.00 / kg
- 99%
- HebeiShuoshengImportandExportco.,Ltd