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3,4-Dimethylphenol

3,4-Dimethylphenol Structure
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
MDL Number:
MFCD00002304
MOL File:
95-65-8.mol
Last updated:2023-11-29 16:31:21
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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℃
Substances Added to Food (formerly EAFUS) 3,4-XYLENOL
CAS DataBase Reference 95-65-8(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 4L479F5JU6
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)  GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
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(20)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich D175404 3,4-Dimethylphenol 98% 95-65-8 5g $26 2024-03-01 Buy
Sigma-Aldrich D175404 3,4-Dimethylphenol 98% 95-65-8 100g $67.1 2024-03-01 Buy
TCI Chemical D0777 3,4-Dimethylphenol >98.0%(GC) 95-65-8 25g $17 2024-03-01 Buy
TCI Chemical D0777 3,4-Dimethylphenol >98.0%(GC) 95-65-8 500g $180 2024-03-01 Buy
Alfa Aesar A10599 3,4-Dimethylphenol 98+% 95-65-8 100g $0 2021-12-16 Buy
Product number Packaging Price Buy
D175404 5g $26 Buy
D175404 100g $67.1 Buy
D0777 25g $17 Buy
D0777 500g $180 Buy
A10599 100g $0 Buy

3,4-Dimethylphenol Chemical Properties,Uses,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 3,4-Dimethylaniline

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Preparation Products

2,5-Dimethylphenol 3,4-DIMETHYLCYCLOHEXANOL TRIS(3,4-DIMETHYLPHENYL)PHOSPHATE 2,6-Dichloro-3,4-dimethylphenol

3,4-Dimethylphenol Suppliers

Global( 286)Suppliers
Supplier Tel Email Country ProdList Advantage
NANJING PASTEUR ChEMICAL CO.,LTD
+86-18066069912 +86-18066069912 1390310770@qq.com China 17 58
Hebei Mojin Biotechnology Co., Ltd 		+8613288715578 sales@hbmojin.com China 12457 58
Hebei Yanxi Chemical Co., Ltd. 		+8617531190177 peter@yan-xi.com China 5993 58
Capot Chemical Co.,Ltd. 		571-85586718 +8613336195806 sales@capotchem.com China 29797 60
Shanghai Daken Advanced Materials Co.,Ltd 		+86-371-66670886 info@dakenam.com China 15928 58
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21695 55
career henan chemical co 		+86-0371-86658258 sales@coreychem.com China 29914 58
NINGBO INNO PHARMCHEM CO., LTD. 		13867897135 sales@nbinno.com CHINA 925 58
Xiamen AmoyChem Co., Ltd 		+86-592-6051114 +8618959220845 sales@amoychem.com China 6387 58
Hubei xin bonus chemical co. LTD 		86-13657291602 linda@hubeijusheng.com CHINA 22968 58
Supplier Advantage
NANJING PASTEUR ChEMICAL CO.,LTD
58
Hebei Mojin Biotechnology Co., Ltd 		58
Hebei Yanxi Chemical Co., Ltd. 		58
Capot Chemical Co.,Ltd. 		60
Shanghai Daken Advanced Materials Co.,Ltd 		58
Henan Tianfu Chemical Co.,Ltd. 		55
career henan chemical co 		58
NINGBO INNO PHARMCHEM CO., LTD. 		58
Xiamen AmoyChem Co., Ltd 		58
Hubei xin bonus chemical co. LTD 		58

View Lastest Price from 3,4-Dimethylphenol manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3,4-Dimethylphenol pictures 2023-11-29 3,4-Dimethylphenol
95-65-8
 US $30.00-10.00 / kg 1kg 0.99 10 tons Hebei Yanxi Chemical Co., Ltd.
3,4-Dimethylphenol pictures 2023-11-25 3,4-Dimethylphenol
95-65-8
 US $0.00 / KG 1KG 99% 50000KG/month Hebei Mojin Biotechnology Co., Ltd
3,4-Dimethylphenol pictures 2023-11-01 3,4-Dimethylphenol
95-65-8
 US $0.00-0.00 / kg 1000kg 99.9% 5000 tons NANJING PASTEUR ChEMICAL CO.,LTD

3,4-Dimethylphenol Spectrum

3,4-Dimethylphenol(95-65-8)MS3,4-Dimethylphenol(95-65-8)1HNMR3,4-Dimethylphenol(95-65-8)13CNMR3,4-Dimethylphenol(95-65-8)IR13,4-Dimethylphenol(95-65-8)IR23,4-Dimethylphenol(95-65-8)Raman

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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