5β-Dihydrocortisone is a sterol metabolite of cortisone generated by the enzyme 5β-reductase (AKR1D1) in the liver.

Physicochemical Properties

Molecular Formula	C21H30O5
Molecular Weight	362.46
Exact Mass	362.209
CAS #	68-54-2
PubChem CID	65554
Appearance	Typically exists as solid at room temperature
LogP	2.069
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	2
Heavy Atom Count	26
Complexity	671
Defined Atom Stereocenter Count	7
SMILES	CC12CCC(=O)CC1CCC3C2C(=O)CC4(C3CCC4(C(=O)CO)O)C
InChi Key	YCLWEYIBFOLMEM-FNLRALKVSA-N
InChi Code	InChI=1S/C21H30O5/c1-19-7-5-13(23)9-12(19)3-4-14-15-6-8-21(26,17(25)11-22)20(15,2)10-16(24)18(14)19/h12,14-15,18,22,26H,3-11H2,1-2H3/t12-,14+,15+,18-,19+,20+,21+/m1/s1
Chemical Name	(5R,8S,9S,10S,13S,14S,17R)-17-hydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-1,2,4,5,6,7,8,9,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-3,11-dione
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

References	[1]. Nikolaos Nikolaou, et al. AKR1D1 regulates glucocorticoid availability and glucocorticoid receptor activation in human hepatoma cells. J Steroid Biochem Mol Biol
Additional Infomation	17,21-dihydroxy-5beta-pregnane-3,11,20-trione is a 4,5-dihydrocortisone that has beta- configuration at position 5. It is a 3-oxo-5beta-steroid, a primary alpha-hydroxy ketone, a tertiary alpha-hydroxy ketone and a 4,5-dihydrocortisone.

Solubility Data

Solubility (In Vitro)

DMSO: 100 mg/mL (275.89 mM)

Solubility (In Vivo)

Solubility in Formulation 1: ≥ 2.5 mg/mL (6.90 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (6.90 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	2.7589 mL	13.7946 mL	27.5893 mL
	5 mM	0.5518 mL	2.7589 mL	5.5179 mL
	10 mM	0.2759 mL	1.3795 mL	2.7589 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.