| Identification | More | [Name]
4-Ethylbenzoic acid | [CAS]
619-64-7 | [Synonyms]
4-ETHYLBENZOIC ACID
P-ETHYLBENZOIC ACID
RARECHEM AL BO 1281
Benzoic acid, 4-ethyl-
4-EthylbenzoicAcid97%
4-EthylbenzoicAcid,2BaC9H10O2
Benzoic acid, 4-ethyl-(9CI)
4-Ethylbenzoic acid ,99% | [EINECS(EC#)]
210-605-3 | [Molecular Formula]
C9H10O2 | [MDL Number]
MFCD00002570 | [Molecular Weight]
150.17 | [MOL File]
619-64-7.mol |
| Chemical Properties | Back Directory | [Appearance]
white to beige powder | [Melting point ]
112-113 °C(lit.)
| [Boiling point ]
271.51°C (estimate) | [density ]
1.0937 (estimate) | [refractive index ]
1.5188 (estimate) | [storage temp. ]
Sealed in dry,Room Temperature | [solubility ]
Chloroform (Sparingly), Methanol (Slightly) | [form ]
Powder | [pka]
pK1:4.35 (25°C) | [color ]
White to beige | [Usage]
Intermediates of Liquid Crystals | [Detection Methods]
HPLC,NMR | [BRN ]
2041840 | [InChIKey]
ZQVKTHRQIXSMGY-UHFFFAOYSA-N | [CAS DataBase Reference]
619-64-7(CAS DataBase Reference) | [NIST Chemistry Reference]
4-Ethylbenzoic acid(619-64-7) | [EPA Substance Registry System]
619-64-7(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,Xi | [Risk Statements ]
R22:Harmful if swallowed.
R36/37:Irritating to eyes and respiratory system . | [Safety Statements ]
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
S37/39:Wear suitable gloves and eye/face protection .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [WGK Germany ]
3
| [Hazard Note ]
Irritant | [HS Code ]
29163900 |
| Hazard Information | Back Directory | [Chemical Properties]
white to beige powder | [Uses]
Intermediates of Liquid Crystals | [Application]
4-Ethylbenzoic acid(619-64-7) has various applications such as being used as an intermediate in the production of pesticide insecticides, including tebufenozide and methoxyfenozide, as well as an initiator of carbon nanotube materials. Additionally, it can also use as an intermediate in the production of liquid crystals.
| [Definition]
ChEBI: 4-Ethylbenzoic acid is a member of benzoic acids. | [Preparation]
The preparation of 4-ethylbenzoic acid can be done in the following steps:
1. Add ethylbenzene and trichloroacetaldehyde in the reaction kettle.
2. Add anhydrous aluminum trichloride in batches at 0 °C.
3. Stir and react at -10 ~ 0 °C for 2 hours after the addition.
4. Add dilute hydrochloric acid to the mixed solution to decompose the remaining aluminum trichloride.
5. Wash with NaHCO3 and water.
6. Distill the organic layer to recover ethylbenzene.
7. Distill to obtain p-ethylbenzene-2,2,2-trichloroethanol.
8. Dissolve the trichloroethanol in methanol.
9. Add NaOH solution and stir.
10. Add dropwise 30% hydrogen peroxide aqueous solution to the mixture.
11. Stir until the trichloroethanol disappears.
12. Acidify with HCl to obtain crystalline 4-ethylbenzoic acid. | [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]. |
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