Canadian Medical Guide > Chemicals and Drugs > Polycyclic Hydrocarbons > Steroids > Cholestanes > Cholestenes Terms and Definitions

Cholestenes

Medical Definition:	Steroids with methyl groups at C-10 and C-13 and a branched 8-carbon chain at C-17. Members include compounds with any degree of unsaturation; however, CHOLESTADIENES is available for derivatives containing two double bonds.
Guide Notes:	do not confuse with CHOLESTANES; includes cholestatrienes
Previously Indexed:	Cholestanes (1968-1972)

Cholestenes Categories.

	Cholecalciferol - An antirachitic oil-soluble vitamin.
	Cholestadienes - Cholene derivatives with methyl groups at C-10 and C-13 and a branched 8-carbon chain at C-17. They must have two double bonds in the ring system.
	Cholestenones - CHOLESTENES with one or more double bonds and substituted by any number of keto groups.
	Cholesterol - The principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils.
	Dihydrotachysterol - A D vitamin (VITAMIN D).
	Ergocalciferols - Vitamin D2 analogs or derivatives. The compounds are used chiefly as oral antirachitic vitamins.
	Ergosterol
	Sitosterols - A family of sterols commonly found in plants and plant oils. Alpha-, beta-, and gamma-isomers have been characterized.

Cholestenes Medical Definitions and Terms

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