ChemicalBook > Product Catalog >Organic Chemistry >Alcohols,Phenols,Phenol alcohols >Phenol derivatives >3,4-Dimethylphenol

3,4-Dimethylphenol

3,4-Dimethylphenol Structure
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
Molecular Weight:
122.16
MOL File:
95-65-8.mol
Modify Date:
2023/11/29 16:31:21

3,4-Dimethylphenol Properties

Melting point 65-68 °C
Boiling point 227 °C(lit.)
Density 1,138 g/cm3
vapor pressure 0.475-130Pa at 25-66.2℃
refractive index 1.5442
FEMA 3596 | 3,4-XYLENOL
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)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS05,GHS06,GHS09
Signal word  Danger
Hazard statements  H301+H311-H314-H411
Precautionary statements  P260-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
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
NFPA 704
2
3 0

3,4-Dimethylphenol price More Price(10)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) W359602 3,4-Xylenol ≥98%, FG 95-65-8 1SAMPLE ₹5141.88 2022-06-14 Buy
Sigma-Aldrich(India) W359602 3,4-Xylenol ≥98%, FG 95-65-8 250G ₹8519.28 2022-06-14 Buy
Sigma-Aldrich(India) W359602 3,4-Xylenol ≥98%, FG 95-65-8 1KG ₹24529.45 2022-06-14 Buy
Sigma-Aldrich(India) W359602 3,4-Xylenol ≥98%, FG 95-65-8 5KG ₹101841.6 2022-06-14 Buy
Sigma-Aldrich(India) D175404 3,4-Dimethylphenol 98% 95-65-8 5G ₹2078.4 2022-06-14 Buy
Product number Packaging Price Buy
W359602 1SAMPLE ₹5141.88 Buy
W359602 250G ₹8519.28 Buy
W359602 1KG ₹24529.45 Buy
W359602 5KG ₹101841.6 Buy
D175404 5G ₹2078.4 Buy

3,4-Dimethylphenol Chemical Properties,Uses,Production

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.

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.]

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1,2-Dimethyl-4-hydroxybenzene 3,4-dimethyl-pheno 4,5-Dimethylphenol 3 4-XYLENOL 98+% 3,4-DIMETHYLPHENOL PESTANAL 3,4-Dimethylphenol, 98+% 3, 4-Xylenol (3,4-Dimethylphenol) 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-DIMETHYLPHENOL 3,4-DMP 4-Hydroxy-1,2-dimethylbenzene ai3-01552 as-o-xylenol o-4-Xylenol FEMA 3596 ASYM-O-XYLENOL 1-HYDROXY-3,4-DIMETHYLBENZENE 4-HYDROXY-O-XYLENE 3,4-Xylenol (OH=1) 3,4-DimethylphenolSolution,2000mg/L,1ml 3,4-Dimethylphenol > 3,4-Dimethylphenol ISO 9001:2015 REACH TIANFU-CHEM CAS:95-65-8 3,4-Dimethylphenol 1,3,4-Xylenol Phenol,3,4-dimethyl- O-XYLENOL 3,4-XYLENOL Metacresol EP Impurity L 95-65-8 576-21-1 95658 108952 Organic Building Blocks Phenols Oxygen Compounds Building Blocks Aromatics Aromatic Phenols Industrial/Fine Chemicals