(+)-beta-Cedrene
β-cedrene are bioactive sesquiterpenes found in cedar essential oil and exert antiseptic, anti-inflammatory, antispasmodic, tonic, astringent, diuretic, sedative, insecticidal, and antifungal activities. β-Cedrene is a potent and competitive inhibitor of CYP2B6-mediated bupropion hydroxylase, and β-cedrene moderately blocks CYP3A4.
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Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to
24 months(2-8C).
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com
The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Physiol Behav . 2018 May 15;189:50-58.
The anxiolytic effect of Juniperus virginiana L. essential oil and determination of its active constituents[Pubmed:
29326032]
Essential oil from Juniperus virginiana L. (eastern red cedarwood essential oil, CWO) has been used to relax mind and enhance comfort for medical purposes. Few reports showed its effect on anxiety behaviors in animal models. The present study investigated the anxiolytic effect of CWO using two anxiety tests in mice, then determined the major active constituents, examined the change of neurotransmitters after intraperitoneal (i.p.) administration. Analysis using GC/MS revealed that the CWO contained (-)-α-cedrene (28.11%), (+)-β-cedrene (7.81%), (-)-thujopsene (17.71%) and (+)-cedrol (24.58%). CWO at 400-800mg/kg increased the percentage of open arm entries and the percentage of the time spent in open arms in the elevated plus maze (EPM), suggesting that the oil has anxiolytic effect. However, it didn't show anxiolytic effect in the light-dark box (LDB) test. Tests of the cedrene did not show anxiolytic effect in either test, but rather induced anxiety-related behaviors and inhibited the locomotor activity in EPM and LDB. Cedrol produced significant anxiolytic effect in both EPM and LDB tests at 400-1600mg/kg and 800-1600mg/kg, respectively. A more significant increase in locomotor activity was observed in cedrol at 200-1600mg/kg administration than CWO. CWO increased the 5-hydroxytryptamine (5-HT) concentration at 800mg/kg, whereas it didn't affect the dopamine (DA) concentration. Cedrol significantly reduced the DA level at 100-200mg/kg and elevated the 5-HT level at 1200-1600mg/kg. Moreover, it changed the ratio of 5-hydroxyindoleacetic acid/5-HT and 3, 4-dihydroxyphenyl acetic acid/DA at 1200-1600mg/kg. CWO and cedrol, in particular might act in an anxiolytic effect through the 5-HTnergic and DAnergic pathways.
Chembiochem . 2011 Sep 5;12(13):2088-2095.
Biosynthesis of sesquiterpenes by the fungus Fusarium verticillioides[Pubmed:
21748838]
The volatiles of the fungus Fusarium verticillioides were analysed by GC-MS. Sesquiterpenes dominated, with trichodiene as the principle component. Several other sesquiterpenes were detected in low amounts that were unambiguously identified from their mass spectra and retention indices. The absolute configurations of (R)-β-bisabolene, (R)-cuparene, (+)-β-barbatene, (-)-α-cedrene, (+)-β-cedrene, and (+)-α-funebrene originating from different key cationic intermediates, were determined by chiral GC-MS and proved to be related to the trichodiene stereostructure. The unusual compound (E)-iso-γ-bisabolene was also found corroborating a previously suggested mechanism for the cyclisation of the bisabolyl to the cuprenyl cation that is based on quantum mechanical calculations (Y. J. Hong, D. J. Tantillo, Org. Lett. 2006, 8, 4601-4604). These analyses resulted in a revised biosynthesis scheme to trichodiene and the side products of the responsible terpene cyclase, trichodiene synthase, an enzyme that is well characterised from Fusarium sporotrichioides. Feeding studies with several deuterated mevalonolactone isotopomers unravelled stereochemical aspects of the late cyclisations towards trichodiene.
