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Steroid


DATA No : SST9133 INFORMANT : Etsuko Yasugi

NAME : 24,25-dimethyl-5a-cholesta-7,24(28)-dien-3b-ol

COMMON NAME:
SYMBOL:
FORMULA: C29H48O1 MOL.WT (average) : 412.691


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BIOLOGICAL ACTIVITY

PHYSICAL AND CHEMICAL PROPERTIES
MELTING POINT:167-168degC, acetate 145-146degC (Ref. 9228)

BOILING POINT:

REFRACTIVE INDEX:

OPTICAL ROTATION:

DENSITY:

SOLUBILITY:
SPECTRAL DATA
UV SPECTRA:

IR SPECTRA:acetate : 795, 822, 890, 1245, 1735cm-1 (Ref. 9228)

NMR SPECTRA:free:1H-NMR(CDCl3) : 3-CH=3.60(M), 7-CH=5.16(M), 18-CH3=0.55(S), 19-CH3=0.80(S), 21-CH3=0.97(D), 26-CH3=1.06(S), 27-CH3=1.06(S), 28-CH2=4.66(BR.S) AND 4.84(BR.S), 29-CH3=1.06(S) (Ref. 9228)

MASS SPECTRA:free : 412[M+](9%),397(14%),314(41%),299(9%),285(5%),271(100%),255(13%), 246(11%),231(13%),227(10%) acetate : 454[M+](9%),439(12%),379(4%),356(43%),342(9%),313(100%),296(4%),288(6%),281(4%),273(6%),255(14%),253(6%),227(14%),213(20%) (Ref. 9228)

OTHER SPECTRA:
CHROMATOGRAM DATA

SOURCE
bur cucmber (Ref. 9228)
CHEMICAL SYNTHESIS

METABOLISM

GENETIC INFORMATION

NOTE

REFERENCES
[9228]
AUTHOR:Akihisa,T., Tamura,T., and Matsumoto,T.
TITLE:24-Methylene-25-Methyllathosterol : A Sterol from Sicyos Angulatus.
JOURNAL:Phytochemistry
VOL:26 PAGE : 575 -577 (1987)
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Last updated June 19, 2007. Copyright © 1989-2007 Japanese Conference on the Biochemistry of Lipids (JCBL). All rights reserved.