Dihydrotachysterol

Not to be confused with Dihydrotestosterone.

Dihydrotachysterol
Systematic (IUPAC) name

(1S,3E,4S)-3-[(2E)-2-[(1R,3aS,7aR)-1-[(E,2R,5R)-5,6-Dimethylhept-3-en-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylcyclohexan-1-ol
Clinical data
AHFS/Drugs.com	Micromedex Detailed Consumer Information
MedlinePlus	a682335
Identifiers
CAS Registry Number	67-96-9^Y
ATC code	A11CC02
PubChem	CID 5311071
DrugBank	DB01070^Y
ChemSpider	4470607^Y
UNII	R5LM3H112R^Y
KEGG	D00299^Y
ChEBI	CHEBI:4591^Y
Chemical data
Formula	C₂₈H₄₆O
Molecular mass	398.664 g/mol
SMILES O[C@@H]3C/C(=C\C=C1/CCC[C@]2([C@H]1CC[C@@H]2[C@@H](/C=C/[C@H](C)C(C)C)C)C)[C@@H](C)CC3
InChI InChI=1S/C28H46O/c1-19(2)20(3)9-10-22(5)26-15-16-27-23(8-7-17-28(26,27)6)12-13-24-18-25(29)14-11-21(24)4/h9-10,12-13,19-22,25-27,29H,7-8,11,14-18H2,1-6H3/b10-9+,23-12+,24-13+/t20-,21-,22+,25-,26+,27-,28+/m0/s1 ^Y Key:ILYCWAKSDCYMBB-OPCMSESCSA-N ^Y
Y (what is this?) (verify)

Dihydrotachysterol (DHT) is a synthetic vitamin D analog activated in the liver that does not require renal hydroxylation like vitamin D₂ (ergocalciferol) and vitamin D₃ (cholecalciferol). DHT has a rapid onset of action (2 hours), a shorter half-life, and a greater effect on mineralization of bone salts than does vitamin D.^[1]

References

↑ R. Gagnon, G. W. Ogden, G. Just, M. Kaye (1974). "Comparison of Dihydrotachysterol and 5,6-trans Vitamin D3 on Intestinal Calcium Absorption in Patients with Chronic Renal Failure". Canadian Journal of Physiology and Pharmacology 52 (2): 272–274. doi:10.1139/y74-037. PMID 4365509.

Cholestanes, membrane lipids: sterols

Adosterol Cholecalciferol/Ergocalciferols Cholesterol Dihydrotachysterol Fusidic acid Lanosterol Phytosterols

Vitamins (A11)

Fat soluble

A	α-Carotene β-Carotene Retinol^# Tretinoin

D	D₂ Ergosterol Ergocalciferol^# D₃ 7-Dehydrocholesterol Previtamin D₃ Cholecalciferol 25-hydroxycholecalciferol Calcitriol (1,25-dihydroxycholecalciferol) Calcitroic acid D₄ Dihydroergocalciferol D₅ D analogues Alfacalcidol Dihydrotachysterol Calcipotriol Tacalcitol Paricalcitol

E	Tocopherol Alpha Beta Gamma Delta Tocotrienol Alpha Beta Gamma Delta Tocofersolan

K	Naphthoquinone Phylloquinone (K₁) Menaquinones (K₂) Menadione (K₃)‡ Menadiol (K₄)

Water soluble

B	B₁ Thiamine^# B₁ analogues Acefurtiamine Allithiamine Benfotiamine Fursultiamine Octotiamine Prosultiamine Sulbutiamine B₂ Riboflavin^# B₃ Niacin Nicotinamide^# B₅ Pantothenic acid Dexpanthenol Pantethine B₆ Pyridoxine^#, Pyridoxal phosphate Pyridoxamine Pyritinol B₇ Biotin B₉ Folic acid Dihydrofolic acid Folinic acid Levomefolic acid B₁₂ Cyanocobalamin Hydroxocobalamin Methylcobalamin Cobamamide Choline

C	Ascorbic acid^# Dehydroascorbic acid

Combinations

Multivitamins

^#WHO-EM
^‡Withdrawn from market
Clinical trials:
- ^†Phase III
- ^§Never to phase III

Index of nutrition

Description	Vitamins metabolism Cofactors Metal metabolism Fats metabolism intermediates lipoproteins Sugars Glycolysis enzymes Glycogenesis and glycogenolysis intermediates Fructose and galactose intermediates

Disease	Vitamins Carbohydrate Lipid storage Metals Other Symptoms and signs eponymous

Treatment	Drugs obesity lipid-modifying Vitamins Mineral supplements