619-64-7

Basic information

• Product Name: 4-Ethylbenzoic acid
• Synonyms: RARECHEM AL BO 1281;P-ETHYLBENZOIC ACID;Benzoic acid, 4-ethyl-;4-ETHYLBENZOIC ACID;4-EthylbenzoicAcid97%;4-EthylbenzoicAcid,2BaC9H10O2;Benzoic acid, 4-ethyl- (9CI);4-Ethylbenzoic acid ,99%
• CAS NO: 619-64-7
• Molecular Formula: C₉H₁₀O₂
• Molecular Weight: 150.17
• EINECS: 210-605-3
• Product Categories: CARBOXYLICACID;FINE Chemical & INTERMEDIATES;Liquid Crystal intermediates;Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts;Carboxylic Acids;Phenyls & Phenyl-Het;Benzoic Acids (Building Blocks for Liquid Crystals);Building Blocks for Liquid Crystals;Functional Materials;Carboxylic Acids;Phenyls & Phenyl-Het;C9;Carbonyl Compounds;Liqiud crystal intermediates
• Mol File: 619-64-7.mol
• Article Data: 45

Chemical Properties

• Melting Point: 112-113 °C(lit.)
• Boiling Point: 271.51°C (estimate)
• Flash Point: 125.1 °C
• Appearance: White to beige/Powder
• Density: 1.0937 (estimate)
• Vapor Pressure: 0.00338mmHg at 25°C
• Refractive Index: 1.5188 (estimate)
• Storage Temp.: Store below +30°C.
• Solubility: Chloroform (Sparingly), Methanol (Slightly)
• PKA: pK1:4.35 (25°C)
• BRN: 2041840
• CAS DataBase Reference: 4-Ethylbenzoic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Ethylbenzoic acid(619-64-7)
• EPA Substance Registry System: 4-Ethylbenzoic acid(619-64-7)

Safety Data

• Hazard Codes: Xn,Xi
• Statements: 22-36/37
• Safety Statements: 22-24/25-37/39-26
• WGK Germany: 3
• Hazardous Substances Data: 619-64-7(Hazardous Substances Data)

Usage

Chemical Properties

white to beige powder

Uses

Different sources of media describe the Uses of 619-64-7 differently. You can refer to the following data:
1. 4-Ethylbenzoic acid was used in the synthesis of ethyl 4-vinyl-α-cyano-β-phenylcinnamate. It was also used to functionalize the edge of “pristine” graphite in the presence of polyphosphoric acid/phosphorus pentoxide.
2. Intermediates of Liquid Crystals

General Description

4-Ethylbenzoic acid reacts with lanthanum nitrate in aqueous solution to yield the polymer catena-poly[[aqua(4-ethylbenzoic acid-κO)lanthanum(III)]-tri-μ-4-ethylbenzoato].

InChI:InChI=1/C9H10O2/c1-2-7-3-5-8(6-4-7)9(10)11/h3-6H,2H2,1H3,(H,10,11)/p-1

Upstream product

• 79-37-8 oxalyl dichloride 
• 100-41-4 ethylbenzene 
• 18220-90-1 4-ethylbenzophenone 
• 49594-75-4 4-(4-ethylphenyl)-4-oxobutyric acid 
• 586-76-5 4-Bromobenzoic acid 
• 925-90-6 ethylmagnesium bromide 
• 622-96-8 4-methylethylbenzene 
• 124-38-9 carbon dioxide 
• 194092-00-7 1,2-bis(4-ethylphenyl)-1,2-ethandiol 
• 25309-64-2 4-ethyl-1-iodobenzene 
• 63139-21-9 4-ethylphenylboronic acid 
• 64-18-6 formic acid 
• 1585-07-5 1-bromo-4-ethylbenzene 
• 768-59-2 4-ethylbenzyl alcohol 

Downstream Products

• 100-21-0 terephthalic acid 
• 167557-69-9 N-(4'-ethylbenzoyl)-N-benzyl-6,7-dimethoxy-3,4-dihydro-2-naphthylamine 
• 84855-64-1 2-Diazo-1-(4-ethyl-cyclohexyl)-ethanone 
• 84856-09-7 Benzenesulfonic acid 2-(4-ethyl-cyclohexyl)-2-oxo-ethyl ester 
• 33241-76-8 1-ethyl-4-(nitromethyl)benzene 
• 67035-84-1 p-ethylbenzyl acetate 
• 1467-05-6 4-ethylbenzylchloride 
• 79744-76-6 p-ethylbenzyl methyl ether 
• 67273-55-6 2-(4-ethylphenyl)-1H-benzo[d]imidazole 

Relevant articles and documents

Carboxylation of sodium arylsulfinates with CO2over mesoporous K-Cu-20TiO2

A mesoporous ternary metal oxide (K-Cu-20TiO2) from a simple sol-gel method was prepared to catalyze heterogeneously the carboxylation reaction of various sodium arylsulfinates under atmospheric carbon dioxide. The catalyst showed excellent selectivity and good functional group tolerance to carboxylation recycle. The oxidation state of active copper(i) by characterization using FTIR, XRD, TG, XPS and TEM techniques proved to be efficacious to conduct atom economical reactions.

Photoredox-Catalyzed Simultaneous Olefin Hydrogenation and Alcohol Oxidation over Crystalline Porous Polymeric Carbon Nitride

Booming of photocatalytic water splitting technology (PWST) opens a new avenue for the sustainable synthesis of high-value-added hydrogenated and oxidized fine chemicals, in which the design of efficient semiconductors for the in-situ and synergistic utilization of photogenerated redox centers are key roles. Herein, a porous polymeric carbon nitride (PPCN) with a crystalline backbone was constructed for visible light-induced photocatalytic hydrogen generation by photoexcited electrons, followed by in-situ utilization for olefin hydrogenation. Simultaneously, various alcohols were selectively transformed to valuable aldehydes or ketones by photoexcited holes. The porosity of PPCN provided it with a large surface area and a short transfer path for photogenerated carriers from the bulk to the surface, and the crystalline structure facilitated photogenerated charge transfer and separation, thus enhancing the overall photocatalytic performance. High reactivity and selectivity, good functionality tolerance, and broad reaction scope were achieved by this concerted photocatalysis system. The results contribute to the development of highly efficient semiconductor photocatalysts and synergistic redox reaction systems based on PWST for high-value-added fine chemical production.

Palladium-catalyzed carbonylative synthesis of acylstannanes from aryl iodides and hexamethyldistannane

In this communication, we describe a new method for the carbonylative synthesis of acylstannanes from aryl iodides and hexamethyldistannane. With Pd(PPh3)4 as the catalyst and toluene as the solvent at 60 °C under 10 bar CO for 16 h, the desired acylstannanes were obtained in good to excellent yields. In order to facilitate isolation and analysis, the obtained acylstannanes were transformed into the corresponding benzoic acids by simply stirring under air for 5 h.