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4-Pentylphenyl 4-propylbenzoate

CAS Number 50649-60-0

Liquid Crystals, Optoelectronic Materials

Product Code M2365A1-10g
Price $144 ex. VAT

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4-Pentylphenyl 4-propylbenzoate, liquid crystal (nematic)

Liquid crystal for the application of optical electronics i.e. in liquid-crystal display (LCD).

4-Pentylphenyl 4-propylbenzoate (PPPB) is a nematic liquid crystal with a chemical structure of 4-propylphenyl ester of 4-pentylphenyl.

Two relaxation times, τ1 and τ2, are observed in the nematic phase of 4-pentylphenyl 4-propylbenzoate which are the characteristic of Cole–Davidson model. Those relaxation times are interpreted as different degrees of freedom in different direction in liquid crystalline state.

Nematic liquid crystal

Nematic liquid crystal

With phenylbenzoate core

Two different molecular alignments in nematic phase

Two different molecular alignments

In nematic phase as two relaxation time was observed

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High purity

High purity

>98% High purity

Chemical Structure

chemical structure of 4-Pentylphenyl 4-propylbenzoate, pppb, CAS 50649-60-0
Chemical structure of 4-Pentylphenyl 4-propylbenzoate, CAS 50649-60-0

General Information

CAS Number 50649-60-0
Chemical Formula C21H26O2
Molecular Weight 310.43
Full Name 4-Pentylphenyl 4-propylbenzoate
Synonyms 3PEP5, PPPB, Pentylphenyl propylbenzoate
4-Amylphenyl 4′-propylbenzoate,  4-Propylbenzoic acid 4-pentylphenyl ester
Classification / Family Phenyl Ester Liquid Crystals, Nematic Liquid Crystal

Product Details

Purity >97% (1HNMR)
Form Colourless liquid
Density 0.989 g/mL at 25 °C
Reflective Index n20/D 1.543
Melting Point 15.0 - 18.0 °C
Solubility Methanol

MSDS Documentation

4-Pentylphenyl 4-propylbenzoate MSDS4-Pentylphenyl 4-propylbenzoate MSDS Sheet


Batch Quantity Price
M2365A1 10 g £115
M2365A1 25 g £230
M2365A1 50 g £350
M2365A1 100 g £520

Literature and Reviews

  1. Time Domain Reflectometry Studies on a Nematic Liquid Crystal, R. Fattepur et al., Mol. Cryst. Liq. Cryst., 501 (1), 20-27 (2009); DOI: 10.1080/15421400802697129.
  2. Electro-optical characteristics of polymer-dispersed liquid crystal containing copper (II) phthalocyanine as a function of UV irradiation time, S. Choi et al., J. Mol. Liq. 363, 119821 (2022); DOI: 10.1016/j.molliq.2022.119821.
  3. Acrylate-assisted fractal nanostructured polymer dispersed liquid crystal droplet based vibrant colored smart-windows, S. Kumar et al., RSC Adv., 9, 12645-12655 (2019); DOI: 10.1039/C9RA00729F.

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

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