Quassin

Quassin

Chembox new
Name = Quassin
ImageFile = Quassin.png ImageName = (+)-Quassin
IUPACName = (3aS,6aR,7aS,8S,11aS,11bS,11cS)1,3a,4,5,6a,7,7a,8,11,11a,11b,11c-dodecahydro-2,10dimethoxy-3,8,11a,11c-tetramethyldibenzo [de,g] chromene1,5,11-trione
EINECS = 200-985-9
Section1 = Chembox Identifiers2
CASNo = 76-78-8
PubChem = 10971
SMILES = CC1C=C(C(=O)C2(C1CC3C4(C2C(=O)C(=C(C4CC(=O)O3)C)OC)C)C)OC
InChIKey = IOSXSVZRTUWBHC-LBTVDEKVBB
Section2 = Chembox Properties
Formula = C22H28O6
MolarMass = 388.454 g/mol
Appearance = White crystalline substance
MeltingPt = 200-222°C
BoilingPt = 586°C
Solubility = Insoluble
VaporPressure = 13 mmHg (@ 25°C)

Quassin is a white bitter, crystalline substance extracted from the quassia tree. It is the bitterest substance found in nature with a bitter threshold of 0.08ppm and it is 50 times more bitter than quinine.Scientific Committee on Food [http://ec.europa.eu/food/fs/sc/scf/out134_en.pdf Opinion of the Scientific Committee on Food on quassin (expressed on 2 July 2002).] SCF/CS/FLAV/FLAVOUR/29 Final ]

Quassin is used as a medicine in traditional Chinese medicine.

Extracts of the Bitter tree (or bitter wood) ("Quassia amara" L. or "Picrasma excelsa") are also used as additives in soft drinks.Scientific Committee on Food [http://ec.europa.eu/food/fs/sc/scf/out134_en.pdf Opinion of the Scientific Committee on Food on quassin (expressed on 2 July 2002).] SCF/CS/FLAV/FLAVOUR/29 Final ]

Although its skeleton possesses 20 carbon atoms Quassin is not a diterpene but a triterpene lactone, which derives from euphol by loss of 10 carbon atoms including C4.

References


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Look at other dictionaries:

  • Quassin — Quas sin, n. [Cf. F. quassine. See {Quassia}.] (Chem.) The bitter principle of quassia, extracted as a white crystalline substance; formerly called {quassite}. [Written also {quass[=i]in}, and {quassine}.] [1913 Webster] …   The Collaborative International Dictionary of English

  • quassin — noun A very bitter triterpenoid lactone, extracted as white crystals from the quassia tree, used in traditional Chinese medicine …   Wiktionary

  • quassin — quas·sin kwäs ən n the bitter crystalline principle C22H28O6 of quassia …   Medical dictionary

  • quassin — quas·sin …   English syllables

  • quassin — ˈkwäsən noun ( s) Etymology: International Scientific Vocabulary quass (from New Latin Quassia) + in : the bitter crystalline principle of quassia …   Useful english dictionary

  • quassiin — Quassin Quas sin, n. [Cf. F. quassine. See {Quassia}.] (Chem.) The bitter principle of quassia, extracted as a white crystalline substance; formerly called {quassite}. [Written also {quass[=i]in}, and {quassine}.] [1913 Webster] …   The Collaborative International Dictionary of English

  • quassine — Quassin Quas sin, n. [Cf. F. quassine. See {Quassia}.] (Chem.) The bitter principle of quassia, extracted as a white crystalline substance; formerly called {quassite}. [Written also {quass[=i]in}, and {quassine}.] [1913 Webster] …   The Collaborative International Dictionary of English

  • quassite — Quassin Quas sin, n. [Cf. F. quassine. See {Quassia}.] (Chem.) The bitter principle of quassia, extracted as a white crystalline substance; formerly called {quassite}. [Written also {quass[=i]in}, and {quassine}.] [1913 Webster] …   The Collaborative International Dictionary of English

  • 76-78-8 — Quassine (+) Quassine Général Nom IUPAC (3aS,6aR,7aS,8S,11aS,11bS,11cS) 1,3a,4,5,6a,7,7a,8,11,11a,11b,11c dodecahydro 2, 10dimethoxy 3,8,11a,11c tetramethyldibenzo[de,g] chromene1,5,11 t …   Wikipédia en Français

  • C22H28O6 — Quassine (+) Quassine Général Nom IUPAC (3aS,6aR,7aS,8S,11aS,11bS,11cS) 1,3a,4,5,6a,7,7a,8,11,11a,11b,11c dodecahydro 2, 10dimethoxy 3,8,11a,11c tetramethyldibenzo[de,g] chromene1,5,11 t …   Wikipédia en Français

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