The underlying tetracyclic hydrocarbon of steroids without any alkyl sidechains

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  • Gonane — Général Nom IUPAC 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17 hexadecahydro 1H cyclopenta[a]phenanthrene Synonymes …   Wikipédia en Français

  • gonane — The hypothetical parent (17 carbon) hydrocarbon molecule of gonadal steroid hormones, such as estrane or androstane, which was conceived to achieve forms of systematic nomenclature. * * * go·nane (goґnān) a 17 carbon tetracyclic hydrocarbon… …   Medical dictionary

  • Steroid — This article is about a family of polycyclic hydrocarbons. For the performance enhancing substance, see Anabolic steroid. IUPAC recommended ring lettering (left) and atom numbering (right) of cholestane, a prototypical steroid skeleton.[1] The… …   Wikipedia

  • Names of fundamental structures most often used in steroid nomenclature — ▪ Table Names of fundamental structures most often used in steroid nomenclature carbon atoms present (as numbered in structure 6) naturally occurring general classes examples shown in text gonane 1–17 none gonane* (1) estrane 1–18 estrogens… …   Universalium

  • Progestin — Co inventor Luis E. Miramontes s signed laboratory notebook. October 15, 1951 A progestin is a synthetic[1] progestogen that has progestinic effects similar to progesterone. [2] …   Wikipedia

  • Levonorgestrel — Systematic (IUPAC) name 13 ethyl 17 ethynyl 17 hydroxy 1 …   Wikipedia

  • steroid — /stear oyd, ster /, Biochem. n. 1. any of a large group of fat soluble organic compounds, as the sterols, bile acids, and sex hormones, most of which have specific physiological action. adj. 2. Also, steroidal /sti royd l, ste /. pertaining to or …   Universalium

  • Naturstoffe — (engl. natural products) sind chemische Substanzen, die von Organismen gebildet werden, um biologische Funktionen zu erfüllen; ein modernes Synonym für Naturstoff ist Biomolekül. Im Gegensatz zum umgangssprachlichen Begriff Naturstoff werden… …   Deutsch Wikipedia

  • Stérane — Le stérane ou perhydrocyclopentanophénanthrène ou encore hexadécahydrocyclopenta[a]phénanthrène est un alcane quadricyclique, constitué des trois cycles à 6 atomes, notés A, B et C, et d un cycle à 5 atomes noté D. Cette structure possède 6… …   Wikipédia en Français

  • STÉROÏDES — Les stéroïdes forment une vaste famille chimique qui regroupe toutes les molécules naturelles dont le squelette carboné polycyclique s’apparente au gonane (perhydro 1,2 cyclopenténophénanthrène) [fig. 3]. Ils sont très répandus dans la nature où… …   Encyclopédie Universelle

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