5alpha-Dihydroprogesterone

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3,20-Allopregnanedione Pubchem(92810)

A biologically active 5-alpha-reduced metabolite of plasma PROGESTERONE. It is the immediate precursor of 5-alpha-pregnan-3-alpha-ol-20-one (ALLOPREGNANOLONE), a neuroactive steroid that binds with GABA(A) RECEPTOR.

KEGG Pathway(C03681)

  • C21-Steroid hormone metabolism
Physiochemical properties of 5alpha-Dihydroprogesterone:
Physical Property Value Units Temp (deg C) Source
Melting Point 200 deg C EXP
log P (octanol-water) 3.460 (none) EST
Atmospheric OH Rate Constant 3.85E-11 cm3/molecule-sec 25 EST
Toxicity:
Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LDLo intraperitoneal 80mg/kg (80mg/kg) Journal of Medicinal Chemistry. Vol. 11, Pg. 117, 1968.
mouse LDLo intravenous 10mg/kg (10mg/kg) Journal of Medicinal Chemistry. Vol. 11, Pg. 117, 1968.