3,5-Cycloergosta-6,8(14),22-triene | CAS:24352-51-0

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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An i-Steroid Hydrocarbon from Ergosterol1.[Reference: WebLink]

METHODS AND RESULTS:
Reinvestigation of a hydrocarbon resulting from dehydration of ergosterol with either phosphorus oxychloride or p-toluenesulfonyl chloride in pyridine and heretofore regarded as an ergostatetraene has shown that the substance is 3,5-cyclo-Δ6, 8(14), 22-ergostatriene (3,5-Cycloergosta-6,8(14),22-triene, V), the first known i-steroid in the ergosterol series. Reaction of the hydrocarbon with hydrogen chloride and its acid-catalyzed hydration result in opening of the cyclopropane ring with formation of mixtures of ergosteryl chlorides or of ergosterol isomers; ergosterol-B1 of reasonable purity has been isolated from the product of hydration. A hydrocarbon, first described by Windaus, resulting from acid-catalyzed dehydration of 3α- and 3β-hydroxy-Δ4,7,22-ergostatriene was investigated to see if it corresponded to a highly dextrorotatory, alumina-isomerized impurity accompanying the i-steroid V.
CONCLUSIONS:
The results indicate that the Windaus hydrocarbon is Δ4,6,8(14),22-ergostatetraene (XIV). Formulas attributed earlier to hydrocarbons resulting from dehydration of epialloergosterol (NaOAc-Ac2O, see III) and of lumisterol (C10-epimer of III) are consistent with present evidence. "Ergosterol-E" is shown to consist largely of a mixture of dihydroergosterols.

Product Name	3,5-Cycloergosta-6,8(14),22-triene
CAS No.:	24352-51-0
Catalog No.:	CFN98257
Molecular Formula:	C₂₈H₄₂
Molecular Weight:	378.6 g/mol
Purity:	>=98%
Type of Compound:	Steroids
Physical Desc.:	Powder
Source:	From Poria cocos(Schw.)Wolf
Solvent:	Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Price: