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Valproic acid

United States Pharmacopeia (USP) Reference Standard

Valproic acid, 2-Propylpentanoic acid
Linear Formula:
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:


pharmaceutical primary standard



refractive index

n20/D 1.425 (lit.)


220 °C (lit.)


0.9 g/mL at 25 °C (lit.)


pharmaceutical (small molecule)



SMILES string




InChI key


Gene Information

human ... ALDH5A1(7915)

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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Biochem/physiol Actions

Anticonvulsant that also has efficacy as a mood stabilizer in bipolar disorder

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

USP issued SDS can be found here.
Sales restrictions may apply.


Exclamation markHealth hazard

Signal Word


Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Repr. 1A - Skin Irrit. 2

Storage Class Code

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



Flash Point(F)

231.8 °F

Flash Point(C)

111 °C

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Mattias Linde et al.
The Cochrane database of systematic reviews, 6(6), CD010611-CD010611 (2013-06-26)
Some antiepileptic drugs but not others are useful in clinical practice for the prophylaxis of migraine. This might be explained by the variety of actions of these drugs in the central nervous system. The present review is part of an
Brian L Le et al.
Research square (2021-04-07)
The novel SARS-CoV-2 virus emerged in December 2019 and has few effective treatments. We applied a computational drug repositioning pipeline to SARS-CoV-2 differential gene expression signatures derived from publicly available data. We utilized three independent published studies to acquire or
Chi-Tso Chiu et al.
Pharmacological reviews, 65(1), 105-142 (2013-01-10)
The mood stabilizers lithium and valproic acid (VPA) are traditionally used to treat bipolar disorder (BD), a severe mental illness arising from complex interactions between genes and environment that drive deficits in cellular plasticity and resiliency. The therapeutic potential of
Radu M Nanau et al.
Clinical biochemistry, 46(15), 1323-1338 (2013-06-25)
Valproic acid is a widely-used first-generation antiepileptic drug, prescribed predominantly in epilepsy and psychiatric disorders. VPA has good efficacy and pharmacoeconomic profiles, as well as a relatively favorable safety profile. However, adverse drug reactions have been reported in relation with
Taylor Chomiak et al.
Neurotoxicology and teratology, 36, 57-66 (2012-09-13)
Autism spectrum disorder (ASD) is a behaviourally defined brain disorder affecting approximately 1 in 88 children. Many pathological studies have shown that ASD is frequently associated with grey and white matter changes that can be described by their deviations from

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