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Steroid


DATA No : SST9090 INFORMANT : Etsuko Yasugi

NAME : cholesta-5,24-dien-3b-ol

COMMON NAME: desmosterol
SYMBOL:
FORMULA: C27H44O1 MOL.WT (average) : 384.638


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BIOLOGICAL ACTIVITY

PHYSICAL AND CHEMICAL PROPERTIES
MELTING POINT:121degC (Ref. 9103) acetate 94-96degC (Ref. 9155)

BOILING POINT:

REFRACTIVE INDEX:

OPTICAL ROTATION:-41deg (Ref. 9103)

DENSITY:

SOLUBILITY:
SPECTRAL DATA
UV SPECTRA:

IR SPECTRA:

NMR SPECTRA:acetate 1H-NMR(CDCl3) 3-CH=4.603(M),3-OAc=2.030(S),6-CH=5.374(BRD),18-CH3= 0.678(S),19-CH3=1.018(S),21-CH3=0.936(D),24-CH=5.090(T),26-CH3=1.681(S), 27-CH3=1.601(S) (Ref. 9106)

MASS SPECTRA:acetate:366[M+-HOAc](51%), 351(11%), 253(23%), 213(10%), 145(24%), 69(100%) (Ref. 9144)

OTHER SPECTRA:
CHROMATOGRAM DATA

SOURCE
Crustacea(Ref. 9103), rat skin (Ref. 9103), Nematodea(Ref. 9144), Cucurbitaceae plants(Ref. 9151),spirogyra(Ref. 9155),cotton(Ref. 9156)
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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[9106]
AUTHOR:Akihisa,T. and Tamura,T.
TITLE:Unpublished observations.
JOURNAL:
VOL: PAGE : - (1990)
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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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[9151]
AUTHOR:Akihisa,T., Thakur,S., Rosenstein,F.U., and Matsumoto,T.
TITLE:Sterols of Cucurbitaceae: the Configuration at C-24 of 24-Alkyl-D5-,D7- and D8-Sterols.
JOURNAL:Lipids
VOL:21 PAGE : 39 -47 (1986)
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[9155]
AUTHOR:Akihisa,T., Kojima,S., Yokota,T., and Tamura,T.
TITLE:24-Methylene-25-Methylcholesterol and Both C-24 Epimers of 24-Ethyl-22-Dehydrocholesterol in a Freshwater Green Alga Hydrodictyon Reticulatum.
JOURNAL:Phytochemistry
VOL:30 PAGE : 3621 -3624 (1991)
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[9156]
AUTHOR:Lusby,W.R., Oliver,J.E., Mckibben,G.H., and Thompson,M.J.
TITLE:Free and Esterified Sterols of Cotton Buds and Anthers.
JOURNAL:Lipids
VOL:22 PAGE : 80 -83 (1987)
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Last updated June 19, 2007. Copyright © 1989-2007 Japanese Conference on the Biochemistry of Lipids (JCBL). All rights reserved.