2-Desoxy-4-epi-pulchellin
2-Desoxy-4-epi-pulchellin has potent in vitro cytotoxicities against the K562, MCF-7, Hela, DU145, U937, H1975, SGC-7901, A549, MOLT-4, and HL60 cell lines with IC50 values ranging from 0.10 to 46.7uM, while it shows significant antiviral (H1N1 and H3N2) activities, it also displays significant antimycobacterial activity (IC50=7.6 uM).
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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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Bioorg Med Chem Lett. 2015 Oct 1;25(19):4082-4.
Dicarabrol, a new dimeric sesquiterpene from Carpesium abrotanoides L.[Pubmed:
26316467 ]
METHODS AND RESULTS:
A new dimeric sesquiterpene, dicarabrol (1), together with three known sesquiterpenes, carabrol (2), 11(13)-dehydroivaxillin (3), and 2-Desoxy-4-epi-pulchellin (4), were isolated from the whole plant of Carpesium abrotanoides L.
Their structures were elucidated on the basis of spectroscopic analysis, and single crystal X-ray diffraction analysis. Compound 1 possessed a dimeric sesquiterpene core featured with a cyclopentane ring connecting two sesquiterpene lactone units rarely discovered in nature.
CONCLUSIONS:
Dicarabrol (1), as well as three known sesquiterpenes (2-4), had potent in vitro cytotoxicities against the K562, MCF-7, Hela, DU145, U937, H1975, SGC-7901, A549, MOLT-4, and HL60 cell lines with IC50 values ranging from 0.10 to 46.7 μM, while they showed significant antiviral (H1N1 and H3N2) activities. Furthermore, compounds 1, 3 and 4 displayed significant antimycobacterial activity (IC50 3.7, 6.0, and 7.6 μM, respectively).
Zhongguo Zhong Yao Za Zhi. 2012 Jun;37(11):1586-9.
Sesquiterpene lactones from Inula helianthus-aquatica.[Pubmed:
22993986]
To investigate the sesquiterpene lactones of the aerial parts of Inula helianthus-aquatica.
METHODS AND RESULTS:
Compounds were isolated and purified by silica gel, Sephadex LH-20 and preparative HPLC. On the basis of physicochemical properties and spectroscopic data, their structures were identified. Seven sesquiterpene lactones and four other compounds were obtained and identified as 2-Desoxy-4-epi-pulchellin (1), 6-acetoxy-4-hydroxy-1, 10H-pseudoguaia-11 (13)-en-12,8-olide (2), 4-acetoxy-6-hydroxy-1, 10H-pseudoguaia-11(13)-en-12,8-olide (3), 8-epi-inuviscolide (4), 2,3,11,13-tetrahydroaromaticin (5), 11,13-dihydro-ergolide (6), 4-epipulchellin-2-O-acetate (7), 7-epiloliolide (8), loliolide (9), beta-sitosterol (10) and daucosterol (11).
CONCLUSIONS:
All the compounds were isolated from this plant for the first time.
