Erythrartine
Standard reference
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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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J Nat Med. 2008 Apr;62(2):228-31.
A new Erythrina alkaloid from Erythrina herbacea.[Pubmed:
18404329]
METHODS AND RESULTS:
A new Erythrina alkaloid, 10-hydroxy-11-oxoerysotrine (1), has been isolated from the flowers of Erythrina herbacea together with five known compounds: erytharbine (2), 10,11-dioxoerysotrine (3), Erythrartine (4), erysotramidine (5) and erysotrine-N-oxide (6). The structure of the new compound was elucidated on the basis of its spectral data, including 2-D NMR and mass (MS) spectra.
CONCLUSIONS:
The new compound is a rare C-10 oxygenated Erythrina alkaloid.
The antioxidant activities of the isolated compounds 1-6 were evaluated by scavenging with peroxynitrite.
Canadian Journal of Chemistry (Impact Factor: 1.01). 02/2011; 59(18):2771-2775.
Erysotrine-N-oxide and erythrartine-N-oxide, two novel alkaloids from Erythrina mulungu[Reference:
WebLink]
METHODS AND RESULTS:
Erysotrine, Erythrartine, hypaphorine, and two novel alkaloids, erysotrine-N-oxide and Erythrartine-N-oxide, were isolated from the flowers of Erythrina mulungu.
The N-oxide structures were determined by spectroscopic analysis (mass, 1H, and 13C nmr) and by partial synthesis.
