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Steroid


DATA No : SST9120 INFORMANT : Etsuko Yasugi

NAME : (24S)-24ethyl-5a-cholest-25-en-3b-ol

COMMON NAME: 5-dihydroclerosterol
SYMBOL:
FORMULA: C29H50O1 MOL.WT (average) : 414.707


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BIOLOGICAL ACTIVITY

PHYSICAL AND CHEMICAL PROPERTIES
MELTING POINT:acetate 123-125degC (Ref. 9157)

BOILING POINT:

REFRACTIVE INDEX:

OPTICAL ROTATION:

DENSITY:

SOLUBILITY:
SPECTRAL DATA
UV SPECTRA:

IR SPECTRA:

NMR SPECTRA:acetate:1H-NMR(CDCl3): 3-CH=4.68(TT), 18-CH3=0.64(S), 19-CH3=0.81(S), 21-CH3=0.89(D), 26-CH3=1.56(D), 27-CH=4.64(D),27-CH=4.72(DT), 29-CH3=0.80(T),3-OAc=2.02(S) (Ref. 9152)

MASS SPECTRA:acetate : 456[M+](100%),441(15%),396(7%),381(15%),358(33%),343(37%), 315(98%),302(22%),283(15%),257(48%),255(59%),229(22%),215(85%) (Ref. 9152)

OTHER SPECTRA:
CHROMATOGRAM DATA

SOURCE
Kalanchoe plants(Kalanchoe pinnata)(Ref. 9157), Clerodendron plants (clerodendrum Scandens) (Ref. 9152)
CHEMICAL SYNTHESIS

METABOLISM

GENETIC INFORMATION

NOTE

REFERENCES
[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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[9157]
AUTHOR:Akihisa,T., Kokke,W.C.M.C., Tamura,T., and Matsumoto,T.
TITLE:Sterols of Kalanchoe Pinnata : First Report of the Isolation of Both C-24 Epimers of 24-Alkyl-D25-Sterols from a Higher Plant.
JOURNAL:Lipids
VOL:26 PAGE : 660 -665 (1991)
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Last updated June 19, 2007. Copyright © 1989-2007 Japanese Conference on the Biochemistry of Lipids (JCBL). All rights reserved.