C75004
5-Cholesten-3-one
Sinonimo/i:
3-Keto-5-cholestene
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About This Item
Formula empirica (notazione di Hill):
C27H44O
Numero CAS:
Peso molecolare:
384.64
Numero CE:
Numero MDL:
Codice UNSPSC:
12352115
ID PubChem:
NACRES:
NA.22
Stato:
powder
Prodotti consigliati
Stato
powder
Livello qualitativo
Punto di fusione
125-127 °C (lit.)
Stringa SMILE
CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@@H]3CC=C4CC(=O)CC[C@]4(C)[C@H]3CC[C@]12C
InChI
1S/C27H44O/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h9,18-19,22-25H,6-8,10-17H2,1-5H3/t19-,22+,23-,24+,25+,26+,27-/m1/s1
GGCLNOIGPMGLDB-GYKMGIIDSA-N
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 3
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
Dispositivi di protezione individuale
Eyeshields, Gloves, type N95 (US)
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J P Slotte et al.
Biochimica et biophysica acta, 1145(2), 243-249 (1993-02-09)
In this study we have examined the cholesterol oxidase (Streptomyces cinnamomeus) catalyzed conversion of either 5-cholesten-3 beta-ol or 5-cholesten-3-one into 4-cholesten-3-one in pure sterol or mixed phospholipid-containing monolayers at the air/buffer interface. The mean molecular area requirement of 5-cholesten-3-one in
I J Kass et al.
Biochemistry, 37(51), 17990-18000 (1999-01-28)
Cholesterol oxidase catalyzes the oxidation and isomerization of cholesterol to cholest-4-en-3-one via cholest-5-en-3-one. It has been proposed that His447 acts as the general base catalyst for oxidation, and that the resulting imidazolium ion formed acts as an electrophile for isomerization.
Refolding of a novel cholesterol oxidase from Pimelobacter simplex reveals dehydrogenation activity.
Hui-Min Qin et al.
Protein expression and purification, 139, 1-7 (2017-07-18)
Cholesterol oxidases, which catalyze the degradation of cholesterol to cholest-4-en-3-one, are widely used in the pharmaceutical and food processing industries. The cholesterol oxidase from Pimelobacter simplex (PsChO3) was transformed into E. coli BL21(DE3), but it was expressed mainly as inclusion bodies
I J Kass et al.
Bioorganic & medicinal chemistry letters, 8(19), 2663-2668 (1999-01-05)
Cholesterol oxidase stereospecifically isomerizes cholest-5-en-3-one to cholest-4-en-3-one. When the base catalyst for isomerization, Glu361, is mutated to Asp, the rate of deprotonation of cholest-5-en-3-one is not affected, but protonation of the dienolic intermediate becomes rate-limiting. This may be a consequence
Khondker Rufaka Hossain et al.
Biochimica et biophysica acta. General subjects, 1863(8), 1243-1253 (2019-05-11)
Sterols have been reported to modulate conformation and hence the function of several membrane proteins. One such group is the Chloride Intracellular Ion Channel (CLIC) family of proteins. The CLIC protein family consists of six evolutionarily conserved protein members in
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