Quassin  (Synonyms: Nigakilactone D)

Quassin (Nigakilactone D) is a bioactive triterpenoid from stem bark extract of Quassia amara. Quassin inhibits P. falciparum with an IC₅₀ of 0.15 μM. Quassin possesses reversible antifertility, anti-estrogenic and anti-plasmodial activity^[1][2].

IC50: 0.15 μM (P. falciparum)^[2]

Quassin (Compound 1; 5-25 ng/mL) inhibits both the basal and luteinizing hormone-stimulated testosterone secretion of rat Leydig cells in a dose-dependent fashion^[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Quassin (0.1-2.0 mg/kg; oral administration; daily; for 60 days; females albino rats) treatment shows a significant decrease in the weight of the ovary and uterus. And also shows a significant decrease in serum estrogen levels in quassin treated rats. The Quassin treated rats has a significantly decreased mean litter number and weight. Quassin does not adversely affect the weight of the kidney, heart, liver and the body of the rats^[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

388.45

C₂₂H₂₈O₆

76-78-8

固体

White to off-white

苦楝树甙,苦木素

Room temperature in continental US; may vary elsewhere.

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

• [1]. Raji Y, et al. Reproductive activities of female albino rats treated with quassin, a bioactive triterpenoid from stem bark extract of Quassia amara. Niger J Physiol Sci. 2010 Nov 24;25(2):95-102.  [Content Brief]

  [2]. Mishra K, et al. Plasmodium falciparum: in vitro interaction of quassin and neo-quassin with artesunate, a hemisuccinate derivative of artemisinin. Exp Parasitol. 2010 Apr;124(4):421-7.  [Content Brief]

  [3]. Njar VC, et al. Antifertility activity of Quassia amara: quassin inhibits the steroidogenesis in rat Leydig cells in vitro. Planta Med. 1995 Apr;61(2):180-2.  [Content Brief]