3,4-Dimethylphenol

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3,4-Dimethylphenol

Description References

Product Name: 3,4-Dimethylphenol
CAS No.: 95-65-8
Chemical Name: 3,4-Dimethylphenol
Synonyms: 3,4-XYLENOL;O-XYLENOL;1,3,4-Xylenol;Phenol,3,4-dimethyl-;3,4-DMP;NSC 1549;ai3-01552;FEMA 3596;o-4-Xylenol;as-o-xylenol
CBNumber: CB4723194
Molecular Formula: C8H10O
Formula Weight: 122.16
MOL File: 95-65-8.mol

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3,4-Dimethylphenol Property

Melting point:: 65-68 °C
Boiling point:: 227 °C(lit.)
Density: 1,138 g/cm³
vapor pressure: 0.475-130Pa at 25-66.2℃
FEMA: 3596 | 3,4-XYLENOL
refractive index: 1.5442
Flash point:: 61 °C
storage temp.: Store below +30°C.
solubility: Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
pka: pK1:10.32 (25°C)
form: Crystalline Powder
color: Off-white to pale cream
Odor: DIMETHYLPHENOL slightly smoky and earthy character provides nice roasted notes to seafood, mushroom and coffee flavors.flat dry
Odor Type: dry
explosive limit: 1.4%(V)
Water Solubility: SLIGHTLY SOLUBLE
Merck: 14,10082
JECFA Number: 708
BRN: 1099267
Exposure limits: ACGIH: TWA 1 ppm
InChIKey: YCOXTKKNXUZSKD-UHFFFAOYSA-N
LogP: 2.23 at 25℃
CAS DataBase Reference: 95-65-8(CAS DataBase Reference)
NIST Chemistry Reference: Phenol, 3,4-dimethyl-(95-65-8)
EPA Substance Registry System: 3,4-Dimethylphenol (95-65-8)

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Safety

Hazard Codes: T,N
Risk Statements: 24/25-34-51/53
Safety Statements: 26-36/37/39-45-61
RIDADR: UN 2261 6.1/PG 2
WGK Germany: 3
RTECS: ZE6300000
TSCA: Yes
HazardClass: 6.1
PackingGroup: II
HS Code: 29071400
Hazardous Substances Data: 95-65-8(Hazardous Substances Data)

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H314Causes severe skin burns and eye damage

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: D175404
Product name: 3,4-Dimethylphenol
Purity: 98%
Packaging: 5g
Price: $26
Updated: 2024/03/01

Sigma-Aldrich

Product number: D175404
Product name: 3,4-Dimethylphenol
Purity: 98%
Packaging: 100g
Price: $67.1
Updated: 2024/03/01

TCI Chemical

Product number: D0777
Product name: 3,4-Dimethylphenol
Purity: >98.0%(GC)
Packaging: 25g
Price: $17
Updated: 2024/03/01

TCI Chemical

Product number: D0777
Product name: 3,4-Dimethylphenol
Purity: >98.0%(GC)
Packaging: 500g
Price: $180
Updated: 2024/03/01

Alfa Aesar

Product number: A10599
Product name: 3,4-Dimethylphenol
Purity: 98+%
Packaging: 100g
Price: $0
Updated: 2021/12/16

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3,4-Dimethylphenol Chemical Properties,Usage,Production

Description

3,4-methylphenol (also 3,4-xylenol) has a flat, dry odor. It can be used as a flavoring agent without safety concern at current levels of intake. 3,4-dimethylphenol is used as an agent in the spectrophotometric method to determine nitrate in plants, soils, and water. It is also used to produce adhesive/sealant and resins as negative photoresist for electroplating.

References

[1] R. R. Elton-Bott, A modified spectrophotometric method for nitrate in plants, soils and water by nitration of 3,4-dimethylphenol, Analytica Chimica Acta, 1977, vol. 90, 215-221
[2] George A. Burdock, Fenaroli’s Handbook of Flavor Ingredients, Sixth Edition, 2010
[3] Chia L. Wang, John Davis, Bryan Lienke, Polyurethane systems having non-sag paintability and primerless adhesion on concrete, Patent, 2012
[4] Yasuo Masuda, Yasushi Washio, Koji Saito, Method of forming plated product using negative photoresist composition and photosensitive composition used therein, Patent, 2012

Chemical Properties

YELLOW TO BROWNISH CRYSTALLINE MASS

Occurrence

Reported found in coffee, tomato, parmesan and romano cheese, smoked fatty fish, white wine, katsuobushi (dried bonito) and wood vinegar.

Uses

Applications of 3,4-dimethylphenol:

It can react with ethyl cinnamates in trifluoroacetic acid to form the corresponding dihydrocoumarin derivatives.
Bromination of 3,4-dimethylphenol using bromine can lead to 6-bromo-3,4-dimethylphenol.
It can react with 1-fluoro-4-chloromethyl-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoro-borate) (Selectfluor^? F-TEDA-BF₄) to form 4-fluoro-3,4-dimethylcyclohexa-2,5-dienone.

Definition

ChEBI: 3,4-xylenol is a member of the class of phenols that is phenol substituted by methyl groups at positions 3 and 4. It derives from a hydride of an o-xylene.

Aroma threshold values

Detection: 1.2 ppm

General Description

Colorless to light tan crystalline powder or solid. Odor threshold 1.2 mg/L. Taste threshold 0.05 mg/L.

Air & Water Reactions

Hygroscopic. Insoluble in water.

Reactivity Profile

3,4-Dimethylphenol is incompatible with bases, acid chlorides, acid anhydrides, and oxidizing agents. 3,4-Dimethylphenol corrodes steel, brass, copper, and copper alloys.

Fire Hazard

Flash point data for 3,4-Dimethylphenol are not available. 3,4-Dimethylphenol is probably combustible.

Purification Methods

Heat 3,4-xylenol with an equal weight of conc H2SO4 at 103-105o for 2-3hours, then dilute it with four volumes of water, reflux it for 1hour, and either steam distil or extract it repeatedly with diethyl ether after cooling to room temperature. The steam distillate is also extracted and evaporated to dryness. (The purification process depends on the much slower sulfonation of 3,4-dimethylphenol than most of its likely contaminants.). It can also be crystallised from water, hexane or pet ether, and sublimed in a vacuum. [Kester Ind Eng Chem (Anal Ed) 24 770 1932, Bernasconi & Paschalis J Am Chem Soc 108 29691986, Beilstein 6 IV 3099.]

3,4-Dimethylphenol Preparation Products And Raw materials

Raw materials

3,5-Dimethylphenol o-Xylene Phenol crude 2,6-Dimethylphenol COAL TAR Polishing oil Xylenol

Preparation Products

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View Lastest Price from 3,4-Dimethylphenol manufacturers

Hebei Yanxi Chemical Co., Ltd.

Product: 3,4-Dimethylphenol 95-65-8
Price: US $30.00-10.00/kg
Min. Order: 1kg
Purity: 0.99
Supply Ability: 10 tons
Release date: 2023-11-29

Hebei Mojin Biotechnology Co., Ltd

Product: 3,4-Dimethylphenol 95-65-8
Price: US $0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 50000KG/month
Release date: 2023-11-24

NANJING PASTEUR ChEMICAL CO.,LTD

Product: 3,4-Dimethylphenol 95-65-8
Price: US $0.00-0.00/kg
Min. Order: 1000kg
Purity: 99.9%
Supply Ability: 5000 tons
Release date: 2023-11-01

95-65-8, 3,4-DimethylphenolRelated Search:

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3 4-XYLENOL 98+%

3,4-DIMETHYLPHENOL PESTANAL

3,4-Dimethylphenol, 98+%

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3,4-DIMETHYLPHENOL / 3,4-XYLENOL

3,4-Dimethylphenol, 4-Hydroxy-o-xylene

3,4-Dimethylphenol,99%

3,4-Dimethylphenol Standard

NSC 1549

3,4-DiMethylphenol solution

3,4-DiMethylphenol-d3,OD

3,4-DIMETHYLPHENOL FOR SYNTHESIS

3,4-DiMethylphenol, 99% 100GR

3,4-Xylenol, 4-Hydroxy-o-xylene

3.4-DiMethylph

3,4-DiMethhylphenol

3,4-Xylenol (OH=1)

3,4-DIMETHYLPHENOL

3,4-DMP

4-Hydroxy-1,2-dimethylbenzene

ai3-01552

as-o-xylenol

o-4-Xylenol

Phenol,3,4-dimethyl-

O-XYLENOL

FEMA 3596

ASYM-O-XYLENOL

1-HYDROXY-3,4-DIMETHYLBENZENE

3,4-XYLENOL

4-HYDROXY-O-XYLENE

3,4-DimethylphenolSolution,2000mg/L,1ml

3,4-Dimethylphenol &gt

3,4-Dimethylphenol ISO 9001：2015 REACH

TIANFU-CHEM CAS:95-65-8 3,4-Dimethylphenol

Metacresol EP Impurity L

95-65-8

576-21-1

95658

108952

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