| Identification | More | [Name]
1,4-Dimethoxybenzene | [CAS]
150-78-7 | [Synonyms]
1,4-DIMETHOXYBENZENE
DIMETHYLHYDROQUINONE
FEMA 2386
HYDROQUINONE DIMETHYL ETHER
P-DIMETHOXYBENZENE
QUINOL DIMETHYL ETHER
1,3-Bis(hydroxymethyl)-2-benzimidazolinone
1,4-dimethoxy-benzen
2-Benzimidazolinone, 1,3-bis(hydroxymethyl)-
4-Methoxyanisole
Anisole, p-methoxy-
Benzene, p-dimethoxy-
Benzene,1,4-dimethoxy-
dimethoxybenzene
Dimethyl ether hydroquinone
Dimethylether hydrochinonu
dimethyletherhydrochinonu
dimethyletherhydroquinone
dimethyletherhydroquinone(1,4-dimethoxybenzene)
Dimethylhydroquinone ether | [EINECS(EC#)]
205-771-9 | [Molecular Formula]
C8H10O2 | [MDL Number]
MFCD00008401 | [Molecular Weight]
138.16 | [MOL File]
150-78-7.mol |
| Chemical Properties | Back Directory | [Appearance]
white crystals or powder | [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 | [refractive index ]
1.5231 (estimate) | [Fp ]
98 °C
| [storage temp. ]
Sealed in dry,Room Temperature | [solubility ]
dioxane: 0.1 g/mL, clear
| [form ]
Crystalline Powder, Crystals, or Flakes | [color ]
White | [Specific Gravity]
1.053 | [Odor]
at 1.00 % in dipropylene glycol. sweet green new mown hay fennel | [PH]
7 (H2O, 20℃)(saturated solution) | [Stability:]
Stable. Combustible. Incompatible with strong oxidizing agents. | [explosive limit]
1.2-5.6%(V) | [Odor Type]
green | [Water Solubility ]
0.8 g/l (20 ºC) | [Sensitive ]
Light Sensitive | [JECFA Number]
1250 | [BRN ]
774605 | [Dielectric constant]
4.5（23℃） | [LogP]
2.08 at 20℃ | [Uses]
Weathering agent in paints and plastics, fixative
in perfumes, dyes, resin intermediate, cosmetics,
especially suntan preparations, flavoring. | [CAS DataBase Reference]
150-78-7(CAS DataBase Reference) | [NIST Chemistry Reference]
Benzene, 1,4-dimethoxy-(150-78-7) | [EPA Substance Registry System]
150-78-7(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S24/25:Avoid contact with skin and eyes . | [WGK Germany ]
1
| [RTECS ]
CZ6650000
| [Autoignition Temperature]
1463 °F | [TSCA ]
Yes | [HS Code ]
29093090 | [Hazardous Substances Data]
150-78-7(Hazardous Substances Data) |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
Dimethyl sulfate-->Hydroquinone-->Metaclazepam | [Preparation Products]
2,3-DICHLORO-5,8-DIHYDROXY-1,4-NAPHTHOQUINONE-->cis-Anethol-->N-Isopropylacrylamide-->Acemetacin-->2,5-Dimethoxyaniline-->2,5-Dichlorobenzo-1,4-quinone-->1-(2,5-Dimethoxyphenyl)-2-oximino-1-propanone-->Demosan-->(2,5-Dimethoxyphenyl)acetic acid-->Astemizole-->2,5-DIMETHOXYPROPIOPHENONE-->METHYL 2-AMINO-2-(4-HYDROXYPHENYL)ACETATE-->1-(2 5-DIMETHOXYPHENYL)-2-AMINOPROPANE&-->2,5-DIHYDROXYBENZONITRILE-->1,4-DIMETHOXY-2-NITROBENZENE-->2,5-dimethoxyterephthalohydrazide-->2-tert-butyl-1,4-dimethoxybenzene-->2-ACETOXY-2',5'-METHOXYBENZOPHENONE-->(2,5-dimethoxyphenyl)-pyridin-2-ylmethanol |
| Hazard Information | Back Directory | [General Description]
Colorless crystals. | [Reactivity Profile]
1,4-DIMETHOXYBENZENE(150-78-7) 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. | [Air & Water Reactions]
Slightly water soluble . | [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]
p-Dimethoxybenzene has a bitter taste. | [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 | [Definition]
ChEBI: 1,4-Dimethoxybenzene is a dimethoxybenzene. | [Preparation]
By methylation of hydroquinone using dimethyl sulfate and alkali. | [Synthesis Reference(s)]
Journal of the American Chemical Society, 83, p. 1251, 1961 DOI: 10.1021/ja01466a056 | [Flammability and Explosibility]
Notclassified | [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.] |
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