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ChemicalBook--->CAS DataBase List--->128-20-1

128-20-1

128-20-1 Structure

128-20-1 Structure
IdentificationBack Directory
[Name]

Eltanolone
[CAS]

128-20-1
[Synonyms]

SKF 6455
Kabi2213
Kabi-2213
Kabi 2213
NSC 82867
ELTANOLONE
PREGNANOLONE
EPIPREGNANOLONE
Pregnanolone II
3α,5β-Pregnanolone
Pregnan-3α-ol-20-one
PREGNAN-3A-OL-20-ONE
pregnan-3a-ol-20-one
5-Pregnan-3-ol-20-one
5B-PREGNAN-3A-OL-20-ONE
5B-Pregnan-3α-ol-20-one
5A-PREGNAN-3A-OL-20-ONE
Pregnanolone (Solution)
5β-Pregnan-3α-ol-20-one
5A-PREGNAN-3SS-OL-20-ONE
Pregnan-3alpha-ol-20-one
5-β-Pregnan-3a-ol-20-one
3alpha,5beta-Pregnanolone
5beta-Pregnan-3a-ol-20-one
3a,5b-epimeric pregnanolone
3a,5b-Tetrahydroprogesterone
3a,5b-Epimeric pregnanolone
3A-HYDROXY-5B-PREGNAN-20-ONE
3α-Hydroxy-20-oxo-5β-pregnane
5BETA-PREGNAN-3ALPHA-OL-20-ONE
(3α,5β)-3-Hydroxy-pregnan-20-one
3alpha,5beta-Epimeric pregnanolone
3ALPHA-HYDROXY-5BETA-PREGNAN-20-ONE
3α-Hydroxy-5β-tetrahydroprogesterone
3-alpha-hydroxy-5-beta-pregnan-20-on
Pregnan-20-one, 3-hydroxy-, (3a,5b)-
3a-Hydroxy-5b-tetrahydroprogesterone
5beta-Pregnan-20-one, 3alpha-hydroxy-
3-Deoxo-3α-hydroxy-5β-dihydroprogesterone
Pregnan-20-one, 3-hydroxy-, (3alpha,5beta)-
3ALPHA-HYDROXY-5BETA-TETRAHYDRO-PROGESTERONE
5A-PREGNAN-3B-OL-20-ONE ENTERPRISE STANDARD,98+%
3α-Hydroxy-5β-pregnan-20-one, 3α-Hydroxy-5β-tetrahydroprogesterone, Pregnanolone
1-[(3R,5R,8R,9S,10S,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]ethanone
[Molecular Formula]

C21H34O2
[MDL Number]

MFCD00067137
[MOL File]

128-20-1.mol
[Molecular Weight]

318.49
Chemical PropertiesBack Directory
[Melting point ]

149°C
[alpha ]

D23 +59.6° (c = 0.3 in chloroform); D26 +108.5 ±1° (c = 9.23 mg/1.23 ml abs ethanol)
[Boiling point ]

397.64°C (rough estimate)
[density ]

1.0234 (rough estimate)
[refractive index ]

1.5344 (estimate)
[storage temp. ]

Store at RT
[solubility ]

Chloroform (Slightly), Ethanol (Slightly), Methanol (Slightly)
[form ]

Solid
[pka]

15.12±0.70(Predicted)
[color ]

White to Off-White
[biological source]

synthetic (organic)
[Water Solubility ]

8mg/L(room temperature)
[NIST Chemistry Reference]

3Alpha-hydroxy-5beta-pregnan-20-one(128-20-1)
Safety DataBack Directory
[Hazard Codes ]

Xn
[Risk Statements ]

40
[Safety Statements ]

22-36
[WGK Germany ]

3
[RTECS ]

TU4384000
[Toxicity]

LD50 in mice, rats (mg/kg): 66 ± 10, 27.5 ± 2.4 i.v. (Gyermek)
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

Eltanolone(128-20-1).msds
Hazard InformationBack Directory
[Uses]

A hyponotic-anaesthetic agent
[Uses]

A hyponotic-anaesthetic agent.
[Definition]

ChEBI: The 3alpha-stereoisomer of 3-hydroxy-5beta-pregnan-20-one.
[Biological Activity]

GABA A receptor positive allosteric modulator. Neuroactive steroid.
[Biochem/physiol Actions]

5β-Pregnan-3α-ol-20-one or pregnanolone is a neurosteroid that acts as a positive allosteric modulator (PAMs) of γ-aminobutyric acid A receptors (GABAARs). It mediates anti-convulsive, anxiolytic and sedative effects. Pregnanolone inhibits γ-aminobutyric acid C receptor (GABAC) receptor-based response and favors GABAA?receptor-mediated currents.
[storage]

Store at RT
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