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ChemicalBook > Product Catalog >Flavors and fragrances >Synthetic fragrances >Phenols, ethers and epoxides >Ethers >1,4-Dimethoxybenzene

1,4-Dimethoxybenzene

1,4-Dimethoxybenzene Structure
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
MOL File:
150-78-7.mol
MSDS File:
SDS
Modify Date:
2024/8/21 22:41:43
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1,4-Dimethoxybenzene 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)
refractive index 1.5231 (estimate)
FEMA 2386 | P-DIMETHOXYBENZENE
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)
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℃
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)

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
NFPA 704
1
2 0

1,4-Dimethoxybenzene price More Price(18)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) W238600 1,4-Dimethoxybenzene 99%, FG 150-78-7 1SAMPLE-K ₹5141.88 2022-06-14 Buy
Sigma-Aldrich(India) W238600 1,4-Dimethoxybenzene 99%, FG 150-78-7 1KG ₹7804.83 2022-06-14 Buy
Sigma-Aldrich(India) W238600 1,4-Dimethoxybenzene 99%, FG 150-78-7 5KG ₹27300.65 2022-06-14 Buy
Sigma-Aldrich(India) W238600 1,4-Dimethoxybenzene 99%, FG 150-78-7 10KG ₹46211.93 2022-06-14 Buy
Sigma-Aldrich(India) D131350 1,4-Dimethoxybenzene ReagentPlus?, 99% 150-78-7 100G ₹4892.9 2022-06-14 Buy
Product number Packaging Price Buy
W238600 1SAMPLE-K ₹5141.88 Buy
W238600 1KG ₹7804.83 Buy
W238600 5KG ₹27300.65 Buy
W238600 10KG ₹46211.93 Buy
D131350 100G ₹4892.9 Buy

1,4-Dimethoxybenzene Chemical Properties,Uses,Production

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

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.

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.

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

Hydroquinone Metaclazepam Dimethyl sulfate

Preparation Products

METHYL 2-AMINO-2-(4-HYDROXYPHENYL)ACETATE cis-Anethol Acemetacin N-Isopropylacrylamide 1-(2,5-Dimethoxyphenyl)-2-oximino-1-propanone
Demosan 2,3-DICHLORO-5,8-DIHYDROXY-1,4-NAPHTHOQUINONE Astemizole 2,5-DIMETHOXYPROPIOPHENONE 1,4-DIMETHOXY-2-NITROBENZENE
(2,5-Dimethoxyphenyl)acetic acid 1-(2 5-DIMETHOXYPHENYL)-2-AMINOPROPANE& 2,5-Dichlorobenzo-1,4-quinone 2,5-Dimethoxyaniline 2,5-DIHYDROXYBENZONITRILE
2,5-dimethoxyterephthalohydrazide 2-tert-butyl-1,4-dimethoxybenzene 2-ACETOXY-2',5'-METHOXYBENZOPHENONE (2,5-dimethoxyphenyl)-pyridin-2-ylmethanol
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JAY CHEMICALS 58
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Urmila Chemopharma 58
Shreeji Aroma 58

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