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P9129

Sigma-Aldrich

5-Pregnen-3β-ol-20-one

≥98%

Sinônimo(s):

3β-Hydroxy-5-pregnen-20-one, Pregnenolone

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About This Item

Fórmula empírica (Notação de Hill):
C21H32O2
Número CAS:
145-13-1
Peso molecular:
316.48
Beilstein:
2059026
Número CE:
205-647-4
Número MDL:
MFCD00003628
Código UNSPSC:
12352211
ID de substância PubChem:
24899008
NACRES:
NA.77
Preço e disponibilidade não estão disponíveis no momento.

fonte biológica

synthetic (organic)

Ensaio

≥98%

Formulário

powder

solubilidade

ethanol: soluble 10 mg/mL, clear, colorless to faintly yellow

grupo funcional

ketone

Condições de expedição

ambient

temperatura de armazenamento

room temp

cadeia de caracteres SMILES

[H][C@@]12CC=C3C[C@@H](O)CC[C@]3(C)[C@@]1([H])CC[C@]4(C)[C@H](CC[C@@]24[H])C(C)=O

InChI

1S/C21H32O2/c1-13(22)17-6-7-18-16-5-4-14-12-15(23)8-10-20(14,2)19(16)9-11-21(17,18)3/h4,15-19,23H,5-12H2,1-3H3/t15-,16-,17+,18-,19-,20-,21+/m0/s1

chave InChI

ORNBQBCIOKFOEO-QGVNFLHTSA-N

Informações sobre genes

human ... SERPINA6(866)
rat ... Ar(24208)

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Aplicação

5-Pregnen-3β-ol-20-one is suitable for use:
  • as a substrate for 3β-HSD at a concentration of 1 μg/mL to study the time-dependent effect of reduced oxygen tension on 3β-hydroxysteroid dehydrogenase (3β-HSD) activity[1]
  • as a progestin precursor to study the effects of splenic macrophages on progestin secretion of luteal cells[2]
  • in the testicular interstitial cell culture medium at a concentration of 15mg/mL[3]

Ações bioquímicas/fisiológicas

One of a small number of "neurosteroids," steroids synthesized in the brain rather than peripheral sources. Decreased levels of these neurosteroids has been implicated in rodent cognitive decline with age, but studies in humans have been contradictory.
Testosterone production in rats occurs in Leydig cells of the testis via the Δ4 pathway. Cholesterol is first converted to pregnenolone, then to progesterone, and finally to testosterone.[3] Pregnenolone is the key neurosteroid synthesized in steroidogenic glands. It is also present as a sulfate ester that serves as an antagonist of GABAergic neurons by interacting with γ-aminobutyric acid (GABA) receptor.[4]

produto relacionado

Nº do produto
Descrição
Preços

Código de classe de armazenamento

13 - Non Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)

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Certificados de análise (COA)

Lot/Batch Number
MKCQ2814
MKCL9285
MKCG3636
MKBX5512V
MKBT6391V

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Visite a Biblioteca de Documentos

Jui-Hsia Weng et al.
Nature chemical biology, 9(10), 636-642 (2013-08-21)
Pregnenolone (P5) is a neurosteroid that improves memory and neurological recovery. It is also required for zebrafish embryonic development. However, its mode of action is unclear. Here we show that P5 promotes cell migration and microtubule polymerization by binding a
S Matsuyama et al.
Endocrinologia japonica, 39(1), 51-57 (1992-02-01)
We have reported that splenic macrophages play a role in the regulation of progestin secretion in rats. In this study, splenic macrophages were obtained from cycling rats at different estrous cycle stages and co-cultured with luteal cells from mid-pseudopregnant rats
S Onami et al.
Endocrine journal, 43(5), 477-485 (1996-10-01)
A large amount of LH/hCG treatment given to male rats is known to suppress the enzyme activity of cytochrome P450c17 in Leydig cells for 48 h. A high dose LH/hCG injection is also known to allow immunocytes, such as macrophages
Nalaka S Rannulu et al.
Journal of the American Society for Mass Spectrometry, 23(9), 1558-1568 (2012-06-27)
The analysis of several bifunctional neutral steroids, 5-α-pregnane diol (5-α-pregnane-3α-20βdiol), estradiol (3,17α-dihydroxy-1,3,5(10)-estratriene), progesterone (4-pregnene-3,20-dione), lupeol (3β-hydroxy-20(29)-lupene), pregnenolone (5-pregnen-3β-ol-20-one), and pregnenolone acetate (5-pregnen-3β-ol-20-one acetate) was accomplished by negative ion electrospray mass spectrometry (ESI-MS) employing adduct formation with various anions: fluoride, bicarbonate
Z Y Hu et al.
Proceedings of the National Academy of Sciences of the United States of America, 84(23), 8215-8219 (1987-12-01)
Oligodendrocyte mitochondria from 21-day-old Sprague-Dawley male rats were incubated with 100 nM [3H]cholesterol. It yielded [3H]pregnenolone at a rate of 2.5 +/- 0.7 and 5-[3H]pregnene-3 beta, 20 alpha-diol at a rate of 2.5 +/- 1.1 pmol per mg of protein
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