Sodium 4-Phenylbutyrate

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Cat.No. 2682 - Sodium 4-Phenylbutyrate | C10H11NaO2 | CAS No. 1716-12-7
Description: Histone deacetylase inhibitor
Alternative Names: 4-PB, Sodium phenylbutyrate
Chemical Name: 4-Phenylbutyric acid, sodium salt
Purity: ≥99% (HPLC)
Citations (1)

Biological Activity

Histone deacetylase inhibitor that displays anticancer activity. Inhibits cell proliferation, invasion and migration and induces apoptosis in glioma cells. Also inhibits protein isoprenylation, depletes plasma glutamine, increases production of fetal hemoglobin through transcriptional activation of the γ-globin gene and affects hPPARγ activation.

Compound Libraries

Sodium 4-Phenylbutyrate is also offered as part of the Tocriscreen Plus, Tocriscreen Epigenetics Toolbox, Tocriscreen Library of FDA-Approved Compounds and Tocriscreen Stem Cell Toolbox. Find out more about compound libraries available from Tocris.

Technical Data

M. Wt 186.18
Formula C10H11NaO2
Storage Desiccate at -20°C
Purity ≥99% (HPLC)
CAS Number 1716-12-7
PubChem ID 5258
Smiles [Na+].[O-]C(=O)CCCC1=CC=CC=C1

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

All Tocris products are intended for laboratory research use only.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 4.65 25
water 18.61 100

Preparing Stock Solutions

The following data is based on the product molecular weight 186.18. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 5.37 mL 26.86 mL 53.71 mL
5 mM 1.07 mL 5.37 mL 10.74 mL
10 mM 0.54 mL 2.69 mL 5.37 mL
50 mM 0.11 mL 0.54 mL 1.07 mL

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Product Datasheets

Certificate of Analysis / Product Datasheet
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Safety Datasheet


References are publications that support the products' biological activity.

Appelskog et al (2004) Histone deacetylase inhibitor 4-phenylbutyrate suppresses GADPH mRNA expression in glioma cells. Int.J.Oncol. 24 1419 PMID: 15138583

Ammerpohl et al (2007) Complementary effects of HDAC inhibitor 4-PB on gap junction communication and cellular export mechanisms support restoration of chemosensitivity of PDAC cells. Br.J.Cancer 96 73 PMID: 17164759

Engelhard et al (1998) Inhibitory effects of phenylbutyrate on the proliferation, morphology, migration and invasiveness of malignant glioma cells. J.Neuro-Oncol. 37 97 PMID:

Khan et al (2011) HDAC inhibitor 4-phenylbutyrate preserves immature phenotype of human embryonic midbrain stem cells: implications for the involvement of DNA methyltransferase. Int.J.Mol.Med. 28 977 PMID: 21894430

If you know of a relevant reference for Sodium 4-Phenylbutyrate, please let us know.

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Keywords: Sodium 4-Phenylbutyrate, supplier, Histone, deacetylases, inhibitors, inhibits, HDAC, epigenetics, 4-PB, Sodium, phenylbutyrate, Histone, Deacetylases, Histone, Deacetylases, Tocris Bioscience

1 Citation for Sodium 4-Phenylbutyrate

Citations are publications that use Tocris products. Selected citations for Sodium 4-Phenylbutyrate include:

Karadottir et al (2015) Cyclic mechanical stretch down-regulates cathelicidin antimicrobial peptide expression and activates a pro-inflammatory response in human bronchial epithelial cells. Oncotarget 3 e1483 PMID: 26664810

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