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
- Molecular Weight:
- 122.16
- MDL Number:
- MFCD00002304
- MOL File:
- 95-65-8.mol
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 |
|
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 |
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
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
NANJING PASTEUR ChEMICAL CO.,LTD | +86-18066069912 +86-18066069912 | 1390310770@qq.com | China | 18 | 58 |
Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | sales@hbmojin.com | China | 12450 | 58 |
Hebei Yanxi Chemical Co., Ltd. | +86-17531190177; +8617531190177 | peter@yan-xi.com | China | 5873 | 58 |
Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 | sales@capotchem.com | China | 29798 | 60 |
Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 | info@dakenam.com | China | 16914 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21668 | 55 |
career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29894 | 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 |
View Lastest Price from 3,4-Dimethylphenol manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
---|---|---|---|---|---|---|---|---|
![]() |
2024-08-15 | 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
95-65-8(3,4-Dimethylphenol)Related Search:
1of4