3,4-Dimethoxyphenol
- Product Name
- 3,4-Dimethoxyphenol
- CAS No.
- 2033-89-8
- Chemical Name
- 3,4-Dimethoxyphenol
- Synonyms
- NSC 140927;3,4-Dimethoxyphel;4-HYDROXYVERATROLE;3,4-DIMETHOXYPHENOL;3,4-dimethoxy-pheno;3,4-diMethoxyphenoxyl;Phenol, 3,4-dimethoxy-;3,4-Dimethoxyphenol,97%;3,4-Dimethoxyphenol >3,4-Bis(Methyloxy)phenol
- CBNumber
- CB2354549
- Molecular Formula
- C8H10O3
- Formula Weight
- 154.16
- MOL File
- 2033-89-8.mol
3,4-Dimethoxyphenol Property
- Melting point:
- 79-82 °C (lit.)
- Boiling point:
- 167°C/14mm
- Density
- 1.1690 (rough estimate)
- refractive index
- 1.4740 (estimate)
- Flash point:
- 167°C/14mm
- storage temp.
- Keep in dark place,Inert atmosphere,Room temperature
- solubility
- Chloroform (Slightly), Methanol (Slightly)
- pka
- 10.08±0.18(Predicted)
- form
- Fine Crystalline Powder
- color
- Off-white to light beige
- Water Solubility
- Soluble in water.
- Sensitive
- Light Sensitive
- BRN
- 1366650
- LogP
- 1.157 (est)
- CAS DataBase Reference
- 2033-89-8(CAS DataBase Reference)
- NIST Chemistry Reference
- Phenol, 3,4-dimethoxy-(2033-89-8)
- EPA Substance Registry System
- 3,4-Dimethoxyphenol (2033-89-8)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36-37/39
- WGK Germany
- 3
- F
- 10
- TSCA
- Yes
- HS Code
- 29095000
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 194468
- Product name
- 3,4-Dimethoxyphenol
- Purity
- 97%
- Packaging
- 10g
- Price
- $176
- Updated
- 2024/03/01
- Product number
- D3221
- Product name
- 3,4-Dimethoxyphenol
- Purity
- >97.0%(GC)
- Packaging
- 5g
- Price
- $97
- Updated
- 2024/03/01
- Product number
- D3221
- Product name
- 3,4-Dimethoxyphenol
- Purity
- >97.0%(GC)
- Packaging
- 25g
- Price
- $330
- Updated
- 2024/03/01
- Product number
- A11344
- Product name
- 3,4-Dimethoxyphenol, 98%
- Packaging
- 5g
- Price
- $96.4
- Updated
- 2024/03/01
- Product number
- A11344
- Product name
- 3,4-Dimethoxyphenol, 98%
- Packaging
- 25g
- Price
- $357.65
- Updated
- 2024/03/01
3,4-Dimethoxyphenol Chemical Properties,Usage,Production
Chemical Properties
Red Crystal Powder
Uses
3,4-Dimethoxyphenol is used in the preparation of 5,6-dimethoxy benzofuranone derivatives and multi-target anti Alzheimer compounds. It is also used in the preparation of 3,4-dimethoxyphenyl-beta-D-glucopyranoside and 4-(but-2-enyloxy)-1,2-dimethoxybenzene. Further, it serves as a precursor for 4H-chromenes synthesis.
Uses
A substituted alkynyl phenoxy compound as new synergists in pesticidal compositions.
Synthesis
3,4-Dimethoxyphenol is synthesised using Veratraldehyde as a raw material by chemical reaction. The specific synthesis steps are as follows:
Method (i): To a solution of vertraldehyde (2.11)(5 g,0.03 mole)in glacial acetic
acid (30 ml)is added dropwise to a solution of peracetic acid5(15 ml)
during 30 min.The temperature of the reaction mixture rises,it is kept at
40-45 by cooling.The reaction mixture is left for 10 hr and then
concentrated to about 15 ml in vacuo.The residue is extracted with ether
(2 x 20 ml).The ether layer is distilled.The formate ester of 3,4-
dimethoxyphenol thus obtained is hydrolysed by refluxing with potassium
hydroxide (10 g)in aqueous alcohol (1:4,100 ml)for 1 hr.The reaction
mixture is concentrated in vacuo almost to dryness.It is dissolved in water
(20 ml),the solution rendered acidic with dilute sulphuric acid and
extracted with ether.The ether extract is dried (sodium sulphate)and
distilled.The oily residue thus obtained is subjected to column
chromatography over silica gel(2 x 30 cm).Elution with benzene gave 3,4-dimethoxyphenol as yellow solid.Yield 3g(65.2%).It is crystallised from
benzene as yellow crystalline needles.M.p.78-80(lit.m.p.78-80).
Method (ii): A mixture of veratraldehyde (2.11)(1.66 g,0.01 mole),hydrogen
peroxide (30%,2.6 ml,0.023 mole),p-toluenesulphonic acid (6.88 g,
0.036 mole)and methanol (5 ml)is stirred at room temperature.When the
reaction is complete (as monitored by TLC)the reaction mixture is diluted
with water (50 ml)and extracted with dichloromethane (5 x 50 ml).The
extract is dried (anhydrous sodium sulphate)and purified by column
chromatography over silica gel(2 x 30 cm).Elution with benzene gave 3,4.
dimethoxyphenol as an yellow solid.Yield 1.16 g (75.3%).M.p.78-80.
3,4-Dimethoxyphenol Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 3,4-Dimethoxyphenol manufacturers
- Product
- 3,4-DIMETHOXYPHENOL 2033-89-8
- Price
- US $0.00/g
- Min. Order
- 1g
- Purity
- 98%
- Supply Ability
- 20tons
- Release date
- 2024-09-19
- Product
- 3,4-Dimethoxyphenol 2033-89-8
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 98%min
- Supply Ability
- 30tons/month
- Release date
- 2023-01-10
- Product
- 3,4-Dimethoxyphenol 2033-89-8
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 20 mt
- Release date
- 2023-02-24