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E24905

Sigma-Aldrich

Ethyl 4-(dimethylamino)benzoate

≥99%

Synonym(s):

Parbenate

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About This Item

Linear Formula:
(CH3)2NC6H4CO2C2H5
CAS Number:
10287-53-3
Molecular Weight:
193.24
Beilstein:
2210233
EC Number:
233-634-3
MDL number:
MFCD00009115
UNSPSC Code:
12352103
PubChem Substance ID:
24894473
NACRES:
NA.23

Assay

≥99%

mp

63-66 °C (lit.)

SMILES string

CCOC(=O)c1ccc(cc1)N(C)C

InChI

1S/C11H15NO2/c1-4-14-11(13)9-5-7-10(8-6-9)12(2)3/h5-8H,4H2,1-3H3

InChI key

FZUGPQWGEGAKET-UHFFFAOYSA-N

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General description

Ethyl 4-(dimethylamino)benzoate (Et-PABA) is a hydrophilic polymer, which can also be used as a derivate of 4-aminobenzoate. It is majorly used as a photo-initiator with a strong estrogenic activity, which finds application as an ultraviolet filter in sunscreens.
Ethyl 4-(dimethylamino)benzoate is a photoinitiator in visible light system.

Application

Can be used as a photoinititator in cell encapsulation applications.
Et-PABA is used as a co-initiator with camphorquinone (CQ) to form a self-adhesive composite for the fabrication of photosensitizers in dental materials.

Pictograms

Health hazardEnvironment
GHS08,GHS09

Signal Word

Danger

Hazard Statements

H360FD,H411

Hazard Classifications

Aquatic Chronic 2 - Repr. 1B

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Fabrício Aulo Ogliari et al.
Journal of dentistry, 35(7), 583-587 (2007-06-02)
The aim of this study was to evaluate the influence of an onium salt in the polymerization kinetics of a dental adhesive model resin. A monomer mixture, based on Bis-GMA, TEGDMA and HEMA, was used as a model dental adhesive
Effect of photoinitiator combinations on hardness, depth of cure, and color of model resin composites.
Salgado VE, et al.
Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [Et al.], 27, S41-S48 (2015)
S J Bryant et al.
Journal of biomaterials science. Polymer edition, 11(5), 439-457 (2000-07-15)
This work investigates the cytocompatibility of several photoinitiating systems for potential cell encapsulation applications. Both UV and visible light initiating schemes were examined. The UV photoinitiators included 2,2-dimethoxy-2-phenylacetophenone (Irgacure 651), 1-hydroxycyclohexyl phenyl ketone (Irgacure 184), 2-methyl-1-[4-(methylthio) phenyl]-2-(4-morpholinyl)-1-propanone (Irgacure 907), and
Effect of adhesive-monomers and photoinitiator on C=C conversion and color stability of model self-adhesive flowable composites.
Monteiro AA, et al.
International Journal of Adhesion and Adhesives, 87, 119-123 (2018)
A Peutzfeldt et al.
Acta odontologica Scandinavica, 47(4), 229-231 (1989-08-01)
The influence of the content of camphorquinone (CQ), amine (DABE), and inhibitor (MHQ) on the Wallace indentation hardness of light-curing polymers was investigated. The hardness was measured on disc-shaped specimens made from 50 bisphenol-A-glycidyl-dimethacrylate/triethyleneglycol-dimethacryla te-based monomers with various contents of
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