99-66-1 Valproic acid AKSci B396
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Valproic acid
, 99% (GC)
2-Propylpentanoic acid
Dipropylacetic acid

CAS Number:99-66-1
MDL Number:MFCD00002672
Min. Purity Spec:99% (GC)
Spectra:NMR, FT-IR, GCMS, GC
Physical Form:Colorless to light yellow clear liquid
Boiling Point:220°C
Flash Point:111°C
Refractive Index:1.4230-1.4260
Long-Term Storage:Store at room temperature
Not hazardous material

Application(s):GABA transaminase and histone deacetylase 1


 Valproic Acid is an anticonvulsant and mood-stabilizing drug used primarily in the treatment of epilepsy and bipolar disorder. It is also used to treat migraine headaches and schizophrenia. In epileptics, valproic acid is used to control absence seizures, grand mal seizures, complex partial seizures, and the seizures associated with Lennox-Gastaut syndrome. Valproic Acid is believed to affect the function of the neurotransmitter GABA (as a GABA transaminase inhibitor) in the human brain. The drug's anticonvulsant activity may be related to increased brain concentrations of gamma aminobutyric acid (GABA), an inhibitory neurotransmitter in the CNS, by inhibiting enzymes that catabolize GABA or block the reuptake of GABA into glia and nerve endings. Valproic Acid may also work by suppressing repetitive neuronal firing through inhibition of voltage-sensitive sodium channels. Valproic acid has also been shown to be an inhibitor of an enzyme called histone deacetylase 1 (HDAC1). HDAC1 is needed for HIV to remain in infected cells. A study published in August 2005 revealed that patients treated with valproic acid in addition to highly active antiretroviral therapy (HAART) showed a 75% reduction in latent HIV infection.

[1]G Rosenberg, The mechanisms of action of valproate in neuropsychiatric disorders: can we see the forest for the trees? Cell Mol Life Sci. 2007;64(16):2090-2103.
[2] G Lehrman, IB Hogue,S Palmer, C Jennings, CA Spina, A Wiegand, AL Landay, RW Coombs, DD Richman, JW Mellors, JM Coffin, RJ Bosch, DM Margolis: Depletion of latent HIV-1 infection in vivo: a proof-of-concept study. Lancet. 2005 19;366(9485):549-555.
[3] C Schwartz, V Palissot, N Aouali, S Wack, NH Brons, B Leners, M Bosseler, G Berchem Valproic acid induces non-apoptotic cell death mechanisms in multiple myeloma cell lines. Int J Oncol. 2007;30(3):573-82.
[4] A Valentini, P Gravina, G Federici, S Bernardini: Valproic acid induces apoptosis, p16INK4A upregulation and sensitization to chemotherapy in human melanoma cells. Cancer Biol Ther. 2007;6(2):185-91.



Signal Word

Hazard Statements
H302; H315; H319; H335

Precautionary Statements
P261; P264; P270; P271; P280; P301+P312; P302+P352; P304+P340; P305+P351+P338; P312; P321; P330; P332+P313; P337+P313; P362; P403+P233; P405; P501

B396Valproic acid
H456Sodium valproate
U058Divalproex sodium

Current as of September 19, 2021

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For research use only. Not for diagnostic or therapeutic use. Not for human use. AK Scientific, Inc. does not sell to individuals. If you are a first-time customer, please email for review at least two official business documents issued by your local jurisdiction, state/province, or country.

WARNING: Attention California residents: This product can expose you to chemicals including Valproic acid, which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.


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