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G7795

Sigma-Aldrich

Ganaxolone

solid, ≥98% (HPLC)

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Synonym(s):
3α-Hydroxy-3β-methyl-5α-pregnan-20-one, CCD 1042
Empirical Formula (Hill Notation):
C22H36O2
CAS Number:
38398-32-2
Molecular Weight:
332.52
MDL number:
MFCD00945298
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

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D S Reddy et al.
The Journal of pharmacology and experimental therapeutics, 295(3), 1241-1248 (2000-11-18)
Ganaxolone (3alpha-hydroxy-3beta-methyl-5alpha-pregnane-20-one), an orally active synthetic analog of the neuroactive steroid allopregnanolone, is a positive allosteric modulator of gamma-aminobutyric acid(A) receptors with anticonvulsant properties. We sought to determine whether tolerance occurs to the anticonvulsant activity of ganaxolone in the pentylenetetrazol
Nancy Foldvary-Schaefer et al.
Neurology, 61(6 Suppl 2), S2-15 (2003-09-25)
In women with epilepsy, seizures can be influenced by variations in sex hormone secretion during the menstrual cycle. The proconvulsant effects of estrogen have been demonstrated in both animals and humans, whereas progesterone has been found to have anticonvulsant properties.
Malika Robichaud et al.
The international journal of neuropsychopharmacology, 9(2), 191-200 (2005-09-22)
Accumulating evidence suggest a reciprocal interaction between neurosteroids, especially 5alpha-pregnan-3alpha-ol,20-one (3alpha,5alpha-THP, allopregnanolone), and the serotonergic (5-HT) system. Both 5-HT and neurosteroids seem to play an important role in the pathophysiology of major depression. We have previously shown that a 7-d
R B Carter et al.
The Journal of pharmacology and experimental therapeutics, 280(3), 1284-1295 (1997-03-01)
Ganaxolone (CCD 1042) is a 3beta-methyl-substituted analog of the endogenous neuroactive steroid 3alpha-hydroxy-5alpha-pregnan-20-one. Ganaxolone inhibited binding of the gamma-aminobutyric acid (GABA)A receptor-chloride channel ligand t-[35S]butylbicyclophosphorothionate (IC50 of 80 nM) and enhanced binding of the benzodiazepine site ligand [3H]flunitrazepam (EC50 of
Virinder Nohria et al.
Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics, 4(1), 102-105 (2007-01-03)
Ganaxolone (3alpha-hydroxy-3beta-methyl-5alpha-pregnan-20-one) (GNX) is the 3beta-methylated synthetic analog of allopregnanolone; it belongs to a class of compounds referred to as neurosteroids. GNX is an allosteric modulator of GABA(A) receptors acting through binding sites which are distinct from the benzodiazepine binding
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