3,4-Dimethylphenol

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)

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( 296)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
NANJING PASTEUR ChEMICAL CO.,LTD	+86-18066069912 +86-18066069912	1390310770@qq.com	China	18	58
Hebei Mojin Biotechnology Co., Ltd	+86 13288715578 +8613288715578	sales@hbmojin.com	China	12837	58
Hebei Yanxi Chemical Co., Ltd.	+8617531190177	peter@yan-xi.com	China	5858	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29791	60
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	18644	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21638	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29885	58
NINGBO INNO PHARMCHEM CO., LTD.	13867897135	sales@nbinno.com	CHINA	923	58
Xiamen AmoyChem Co., Ltd	+86-86-5926051114 +8618959220845	sales@amoychem.com	China	6383	58
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22963	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

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2024-10-25	3,4-Dimethylphenol 95-65-8	US $30.00-10.00 / kg	1kg	0.99	10 tons	Hebei Yanxi Chemical Co., Ltd.
2023-11-25	3,4-Dimethylphenol 95-65-8	US $0.00 / KG	1KG	99%	50000KG/month	Hebei Mojin Biotechnology Co., Ltd
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
95-65-8
US $30.00-10.00 / kg
0.99
Hebei Yanxi Chemical Co., Ltd.

3,4-Dimethylphenol
95-65-8
US $0.00 / KG
99%
Hebei Mojin Biotechnology Co., Ltd

3,4-Dimethylphenol
95-65-8
US $0.00-0.00 / kg
99.9%
NANJING PASTEUR ChEMICAL CO.,LTD

3,4-Dimethylphenol Spectrum

3,4-Dimethylphenol(95-65-8)MS 3,4-Dimethylphenol(95-65-8)¹HNMR 3,4-Dimethylphenol(95-65-8)¹³CNMR 3,4-Dimethylphenol(95-65-8)IR1 3,4-Dimethylphenol(95-65-8)IR2 3,4-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 3,4-Dimethylphenol 100 μg/ml Methanol XA12734000ME3,4-DimethylphenoL100μg/mLin Met 95-65-8 576-21-1 95658 108952 Organic Building Blocks Phenols Oxygen Compounds Building Blocks Aromatics Aromatic Phenols Industrial/Fine Chemicals