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Ethyl (4-fluorobenzoyl)acetate

CAS Number 1999-00-4

Chemistry Building Blocks, Fluorinated Building Blocks, Materials, Monomers


Product Code B1841-5g
Price $138 ex. VAT

A fluorinated ketoester derived building block

Used as a ligand in catalytic reaction and synthetic intermediate of pyrimidine for OLEDs, semiconductors and DSSCs


Specifications | MSDS | Literature and Reviews


Ethyl (4-fluorobenzoyl)acetate (p-EFBA), CAS number 1999-00-4, the analogue of β-Ketoester, is typically used as a ligand for improving stereoselectivity of catalytic reactions for great chelating ability to metal centres. Ethyl (4-fluorobenzoyl)acetate is an ideal starting material for synthesizing pyrimidine derivatives via Pinner pyrimidine reaction with amidine/guanidine. The iridium complexes formed by those pyrimidine derivatives are used for long lasting blue phosphorescent organic light-emitting diodes (PhOLEDs). The self-assembled monomer layer of pyrimidine derivatives can engineer the interfacial band of MoS2 and gold for enhanced device performance in thin film transistors.

Ethyl (4-fluorobenzoyl)acetate can be obtained by the reaction of 4-fluoroacetophenone with diethyl carbonate and sodium hydride as the base in great yield.

Multiple functional groups

Multiple functional groups

For facile synthesis

Worldwide shipping for 1999-00-4

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High purity 1999-00-4

High purity

>97% High purity

Fluorinated building block

Fluorinated phenyloxopropanoate building block

For drug discoveries, dyes, and semiconductors

General Information


CAS Number 1999-00-4
Chemical Formula C11H11FO3
Full Name Ethyl 3-(4-Fluorophenyl)-3-Oxopropanoate
Molecular Weight 210.20 g/mol
Synonyms (4-Fluorobenzoyl)acetic acid ethyl ester, 3-(4-Fluorophenyl)-3-oxopropionic acid ethyl ester
Classification / Family Ketoester derivatives, Fluorinated building blocks, Semiconductor synthesis intermediates, Dyes

Chemical Structure


Ethyl (4-fluorobenzoyl)acetate chemical structure, CAS1999-00-4
Ethyl (4-fluorobenzoyl)acetate chemical structure, CAS 1999-00-4

Product Details


Purity >97%
Boiling Point Tb = 355 °C – 360 °C at 760 mmHg
Relative Density 1.174 g/mL at 25 °C
Appearance Slightly yellow liquid

MSDS Documentation


3,3-Difluoroazetidine hydrochlorideEthyl (4-fluorobenzoyl)acetate MSDS Sheet

Literature and Reviews


  1. Interfacial band engineering of MoS2/Gold interfaces using pyrimidine-containing self-assembled monolayers: toward contact-resistance-free bottom-contacts, A. Matković et al., Adv. Electron. Mater., 6, 2000110(2020); DOI: 10.1002/aelm.202000110.
  2. Anomalously long-lasting blue PhOLED feathuring phenyl-pyrimidine cyclomealated iridium emitter, M Sarma et al., Chem, 3, 461–476(2017); DOI: 10.1016/j.chempr.2017.08.001.
  3. Recent progress of pyrimidine derivatives for high-performance organic light-emitting devices, R. Komatsu et al., J. photonics Energy, 8(3), 032108(2018); DOI: 10.1117/1.JPE.8.032108.
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