13-Acetoxy-3beta-hydroxygermacra-1(10)E,4E,7(11)-trien-12,6alpha-olide | CAS:126829-66-1

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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.

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Germacranolides from Artemisia myriantha and their conformation.[Pubmed: 11853748]

METHODS AND RESULTS:
The CH(2)Cl(2) extract of the aerial parts of Artemisia myriantha afforded three germacranolides derived from 13-Acetoxy-3beta-hydroxygermacra-1(10)E,4E,7(11)-trien-12,6alpha-olide, whose structures were elucidated by 2D-NMR spectroscopic analyses. Some conclusions are drawn about the possible conformations of the ten-membered germacranolide ring system from the exchange peaks seen in the NOESY spectra, and an estimate is made of the energy barrier to ring-flipping from variable-temperature NOESY experiments.
CONCLUSIONS:
The conclusions reached were supported by molecular modeling studies and an NMR spectroscopic investigation of the commercially available germacranolide, parthenolide.

Product Name	13-Acetoxy-3beta-hydroxygermacra-1(10)E,4E,7(11)-trien-12,6alpha-olide
CAS No.:	126829-66-1
Catalog No.:	CFN89013
Molecular Formula:	C₁₇H₂₂O₅
Molecular Weight:	306.35 g/mol
Purity:	>=98%
Type of Compound:	Sesquiterpenoids
Physical Desc.:	Powder
Source:	The aerial parts of Artemisia myriantha.
Solvent:	Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
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