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G7795

Sigma-Aldrich

Ganaxolone

≥98% (HPLC), solid

Synonym(s):

3α-Hydroxy-3β-methyl-5α-pregnan-20-one, CCD 1042

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About This Item

Empirical Formula (Hill Notation):
C22H36O2
CAS Number:
38398-32-2
Molecular Weight:
332.52
MDL number:
MFCD00945298
UNSPSC Code:
12352200
PubChem Substance ID:
24724496
NACRES:
NA.77

Quality Level

100

Assay

≥98% (HPLC)

form

solid

color

white

solubility

DMSO: ≥2 mg/mL
H2O: insoluble

storage temp.

2-8°C

SMILES string

[H][C@@]12CC[C@@]3([H])[C@]4([H])CC[C@H](C(C)=O)[C@@]4(C)CC[C@]3([H])[C@@]1(C)CC[C@@](C)(O)C2

InChI

1S/C22H36O2/c1-14(23)17-7-8-18-16-6-5-15-13-20(2,24)11-12-21(15,3)19(16)9-10-22(17,18)4/h15-19,24H,5-13H2,1-4H3/t15-,16-,17+,18-,19-,20+,21-,22+/m0/s1

InChI key

PGTVWKLGGCQMBR-FLBATMFCSA-N

Gene Information

human ... GABRA1(2554) , GABRA2(2555) , GABRA3(2556) , GABRA4(2557) , GABRA5(2558) , GABRA6(2559) , GABRB1(2560) , GABRB2(2561) , GABRB3(2562) , GABRD(2563) , GABRE(2564) , GABRG1(2565) , GABRG2(2566) , GABRG3(2567) , GABRP(2568) , GABRQ(55879)
mouse ... Gabrg2(14406)

Biochem/physiol Actions

Ganaxolone (3alpha-hydroxy-3beta-methyl-5alpha-pregnane-20-one) is a positive allosteric modulator of the GABAA receptor subtype; synthetic analog of the endogenous neurosteroid allopregnanolone; effective against chemically induced seizures in rats and mice. Ganaxolone is an orally active analog of allopregnanolone that is not converted to the hormonally active 3-keto form. The enhanced anticonvulsant potency of ganaxolone after neurosteroid withdrawal supports the use of ganaxolone as a specific treatment for perimenstrual catamenial epilepsy.

Features and Benefits

This compound is a featured product for Neuroscience research. Click here to discover more featured Neuroscience products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
This compound is featured on the GABAA Receptors page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Quality

The product is pure based on elemental analysis, NMR, MS, optical rotation and melting point.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Delia Belelli et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 23(31), 10013-10020 (2003-11-07)
Neurosteroids typified by 5alpha-pregnan-3alpha-ol-20-one (5alpha3alpha) have emerged as the most potent endogenous positive modulators of the GABAA receptor, the principal mediator of fast inhibitory transmission within the CNS. Neurosteroids can be synthesized de novo in the brain in levels sufficient
S H Hsiao et al.
Brain research. Developmental brain research, 130(1), 25-40 (2001-09-15)
Previously we found postnatal binge-like ethanol exposure using an artificial-rearing method in the rat delayed developmental up-regulation of GABA(A) receptors (GABA(A)Rs) in both medial septum/diagonal band (MS/DB) and cerebellar Purkinje neurons. In the present study, the impact of ethanol on
Doodipala Samba Reddy
Progress in brain research, 186, 113-137 (2010-11-26)
This chapter provides an overview of neurosteroids, especially their impact on the brain, sex differences and their therapeutic potentials. Neurosteroids are synthesized within the brain and rapidly modulate neuronal excitability. They are classified as pregnane neurosteroids, such as allopregnanolone and
Rita Citraro et al.
Neuropharmacology, 50(8), 1059-1071 (2006-04-25)
Neurosteroids are synthesized in the brain and have been demonstrated to modulate various cerebral functions. Allopregnanolone (3alpha-hydroxy-5alpha-pregnan-20-one), a naturally occurring neurosteroid, and ganaxolone (3alpha-hydroxy-3beta-methyl-5alpha-pregnan-20-one), a synthetic derivative, are two neurosteroids acting as positive allosteric modulators of the GABA(A) receptor complex
Vincent A Pieribone et al.
Epilepsia, 48(10), 1870-1874 (2007-07-20)
A pilot study of the safety, tolerability, dose range and potential efficacy of ganaxolone for the treatment of refractory epilepsy in pediatric and adolescent subjects. We report the results of a nonrandomized, nonblinded, open-label, dose-escalation trial of ganaxolone in pediatric
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