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Steroid


DATA No : SST9099 INFORMANT : Etsuko Yasugi

NAME : 24-methyl-5a-cholesta-7.24(28)-dien-3b-ol

COMMON NAME: episterol
SYMBOL:
FORMULA: C28H46O1 MOL.WT (average) : 398.664


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BIOLOGICAL ACTIVITY

PHYSICAL AND CHEMICAL PROPERTIES
MELTING POINT:131degC (Ref. 9103)

BOILING POINT:

REFRACTIVE INDEX:

OPTICAL ROTATION:+6deg (Ref. 9103)

DENSITY:

SOLUBILITY:
SPECTRAL DATA
UV SPECTRA:

IR SPECTRA:

NMR SPECTRA:acetate 1H-NMR(CDCl3) 3-CH=4.695(TT),3-OAc=2.025(S),7-CH=5.148(DD),18-CH3= 0.537(S),19-CH3=0.811(S),21-CH3=0.954(D),25-CH=2.231(SEPTET),26-CH3 AND 27-CH3=1.024(D) AND 1.028(D),28-CH2=4.652(S) AND 4.715(D) (Ref. 9152)

MASS SPECTRA:acetate : 440[M+](1%),425(3%),365(2%),356(22%),315(2%),313(100%),255(14%), 253(9%),227(12%),213(26%) (Ref. 9144)

OTHER SPECTRA:
CHROMATOGRAM DATA

SOURCE
Asteroidea (Ref. 9103), yeast(Ref. 9103), Nematodea(Ref. 9144),Cleodendron plants (Ref. 9152), Indian millet (Ref. 9168)
CHEMICAL SYNTHESIS

METABOLISM

GENETIC INFORMATION

NOTE

REFERENCES
[9103]
AUTHOR:Brooks,C.J.W. (1970) Steroids: Sterols and Bile Acids, in Rodd's Chemistry of Carbon Compounds (Coffey,S. ed) pp1 - 196, Elsevier Publishing Co., Amsterdam
TITLE:
JOURNAL:
VOL: PAGE : 1 -196 (1970)
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[9144]
AUTHOR:Chitwood, D. J., and Lusby, W. R.
TITLE:Metabolism of plant sterols by nematodes PubMed ID:1779708
JOURNAL:Lipids.
VOL:26 PAGE : 619-627 (1991)
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[9152]
AUTHOR:Akihisa,T., Tamura,T., Matsumoto,T., Kokke,W.C.M.C.,Ghosh,P., and Thakur,S.
TITLE:(22Z,24S)-Stigmasta-5, 22, 25-Trien-3b-ol and Other Novel Sterols from Clerodendrum Scandens: First Report of the Isolation of a Cis-D22-Unsaturated Sterols from a Higher Plant.
JOURNAL:J. Chem. Soc., Perkin Trans. I
VOL: PAGE : 2213 -2218 (1990)
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[9168]
AUTHOR:Palmer,M.A., and Bowden,B.N.
TITLE:The Sterols and Triterpenes of Sorghum Vulgare Grains.
JOURNAL:Phytochemistry
VOL:14 PAGE : 2049 -2053 (1975)
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Last updated June 19, 2007. Copyright © 1989-2007 Japanese Conference on the Biochemistry of Lipids (JCBL). All rights reserved.