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1,4-Dimethoxybenzene

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1,4-Dimethoxybenzene Basic information

Product Name:
1,4-Dimethoxybenzene
Synonyms:
  • 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
CAS:
150-78-7
MF:
C8H10O2
MW:
138.16
EINECS:
205-771-9
Product Categories:
  • Building Blocks
  • C2 to C8
  • Chemical Synthesis
  • Ethers
  • Organic Building Blocks
  • Oxygen Compounds
  • Aromatic Ethers
  • Benzene derivates
  • 150-78-7
Mol File:
150-78-7.mol
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1,4-Dimethoxybenzene Chemical Properties

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
color 
White
Specific Gravity
1.053
PH
7 (H2O, 20℃)(saturated solution)
explosive limit
1.2-5.6%(V)
Water Solubility 
0.8 g/l (20 ºC)
Sensitive 
Light Sensitive
JECFA Number
1250
BRN 
774605
Stability:
Stable. Combustible. Incompatible with strong oxidizing agents.
LogP
2.08 at 20℃
CAS DataBase Reference
150-78-7(CAS DataBase Reference)
NIST Chemistry Reference
Benzene, 1,4-dimethoxy-(150-78-7)
EPA Substance Registry System
p-Dimethoxybenzene (150-78-7)
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Safety Information

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)

MSDS

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1,4-Dimethoxybenzene Usage And Synthesis

Chemical Properties

white crystals or powder

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.

Occurrence

Reported found in hyacinth (Hyacinthus orientalis L.) essential oil, Rhodophyllus icterius, papaya, peppermint oil, green tea, cherimoya and cooked shrimp

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.

Uses

Weathering agent in paints and plastics, fixative in perfumes, dyes, resin intermediate, cosmetics, especially suntan preparations, flavoring.

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

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

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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