In stereochemistry, an epimer is one of a pair of diastereomers. The two epimers have opposite configuration at only one stereogenic center out of at...
5 KB (418 words) - 21:38, 25 November 2023
(C6H12O6), also known as D-allulose, or simply allulose, is a low-calorie epimer of the monosaccharide sugar fructose, used by some major commercial food...
20 KB (2,012 words) - 07:48, 7 August 2024
woodrose and morning glories have been linked to ergine and/or isoergine, its epimer, as it is an alkaloid present in the seeds. Ergine has been found in high...
23 KB (2,202 words) - 21:23, 24 May 2024
of carbohydrates General Aldose Ketose Furanose Pyranose Geometry Anomer Cyclohexane conformation Epimer Mutarotation Monosaccharides Multiple Category...
15 KB (1,694 words) - 07:08, 14 July 2024
(peppermint). Japanese menthol also contains a small percentage of the 1-epimer neomenthol.[citation needed] The biosynthesis of menthol has been investigated...
31 KB (2,865 words) - 19:00, 14 August 2024
a sugar monomer of the aldohexose series of carbohydrates. It is a C-2 epimer of glucose. Mannose is important in human metabolism, especially in the...
17 KB (1,674 words) - 20:37, 17 August 2024
of carbohydrates General Aldose Ketose Furanose Pyranose Geometry Anomer Cyclohexane conformation Epimer Mutarotation Monosaccharides Multiple Category...
34 KB (3,912 words) - 14:16, 13 July 2024
lactone group related to mycoestrogens found in Fusarium spp. It is the β epimer of α-zearalenol and along with α-zearalenol is a major metabolite of zearalenone...
3 KB (193 words) - 21:20, 15 September 2023
center isomerizes; the (S)-epimer is called neoamygdalin. Although the synthesized version of amygdalin is the (R)-epimer, the stereogenic center attached...
33 KB (3,284 words) - 06:42, 17 August 2024
and epitestosterone. In sheep, the molecule is transformed into the 17-epimer. Androstenedione is converted into different metabolites in invertebrates...
19 KB (1,899 words) - 15:35, 24 January 2024
of carbohydrates General Aldose Ketose Furanose Pyranose Geometry Anomer Cyclohexane conformation Epimer Mutarotation Monosaccharides Multiple Category...
104 KB (10,618 words) - 20:16, 17 August 2024
potency as progesterone (34). In regard to the biological activity of the 3α epimer no data are available. Pincus G, Miyake T, Merrill AP, Longo P (November...
16 KB (1,567 words) - 13:48, 19 June 2024
may be derived from gulose. l-Guluronic acid is a C-3 epimer of l-galacturonic acid and a C-5 epimer of d-mannuronic acid. Along with d-mannuronic acid,...
3 KB (210 words) - 05:16, 5 November 2023
(NBRC 12773). Neomycin is a mixture of neomycin B (framycetin); and its epimer neomycin C, the latter component accounting for some 5–15% of the mixture...
21 KB (2,116 words) - 14:00, 20 July 2024
is planar and thus achiral. More formally stated, then, an anomer is an epimer at the hemiacetal/hemiketal carbon atom in a cyclic saccharide. Anomerization...
8 KB (883 words) - 12:19, 25 April 2024
lactone group related to mycoestrogens found in Fusarium spp. It is the α-epimer of β-zearalenol. Along with β-zearalenol, it is a major metabolite of zearalenone...
3 KB (158 words) - 08:57, 13 December 2023
of carbohydrates General Aldose Ketose Furanose Pyranose Geometry Anomer Cyclohexane conformation Epimer Mutarotation Monosaccharides Multiple Category...
9 KB (901 words) - 18:55, 7 June 2024
there is one pair of possible stereoisomers, which are enantiomers and epimers. 1, 3-dihydroxyacetone, the ketose corresponding to the aldose glyceraldehydes...
57 KB (5,800 words) - 15:27, 2 August 2024
of carbohydrates General Aldose Ketose Furanose Pyranose Geometry Anomer Cyclohexane conformation Epimer Mutarotation Monosaccharides Multiple Category...
20 KB (2,379 words) - 20:00, 24 July 2024
4-CQA) and 5-O-caffeoylquinic acid (neochlorogenic acid or 5-CQA). The epimer at position 1 has not yet been reported. Structures having more than one...
14 KB (1,254 words) - 18:19, 13 August 2024
17α-testosterone or as androst-4-en-17α-ol-3-one, is an endogenous steroid and an epimer of the androgen sex hormone testosterone. It is a weak competitive antagonist...
11 KB (1,093 words) - 18:33, 21 July 2024
glucose, and about 65% as sweet as sucrose. It is an aldohexose and a C-4 epimer of glucose. A galactose molecule linked with a glucose molecule forms a...
24 KB (2,420 words) - 04:26, 18 May 2024
nor l-forms are fermentable by yeast. D-Gulose is a C-3 epimer of D-galactose and a C-5 epimer of L-mannose. Merck Index, 11th Edition, 4490 Swain, M....
3 KB (173 words) - 18:39, 23 March 2024
from the epiandrosterone skeleton. Dehydroandrosterone (DHA) is the 3α-epimer of DHEA and is also an endogenous androgen. DHEA was first isolated from...
42 KB (3,935 words) - 04:01, 30 April 2024
of carbohydrates General Aldose Ketose Furanose Pyranose Geometry Anomer Cyclohexane conformation Epimer Mutarotation Monosaccharides Multiple Category...
14 KB (1,907 words) - 09:34, 29 May 2023
mythology named Talos, but the relevance is unclear. Talose is a C-2 epimer of galactose and a C-4 epimer of mannose. D-(+)-Talose at Sigma-Aldrich v t e...
2 KB (63 words) - 07:54, 31 October 2023
the natural form. Androsterone's 3β-isomer is epiandrosterone, and its 5β-epimer is etiocholanolone. The 3β,5β-isomer is epietiocholanolone. Androsterone...
14 KB (1,235 words) - 15:21, 12 May 2024
the configurations of some or all of the stereocenters in a compound. An epimer is a diastereoisomer that has the opposite configuration at only one of...
16 KB (1,641 words) - 13:48, 2 August 2024
of carbohydrates General Aldose Ketose Furanose Pyranose Geometry Anomer Cyclohexane conformation Epimer Mutarotation Monosaccharides Multiple Category...
23 KB (2,538 words) - 21:26, 8 July 2024
fructose (via the polyol pathway), mannose (the epimer of glucose at position 2), galactose (the epimer at position 4), fucose, various uronic acids and...
121 KB (12,794 words) - 10:50, 6 August 2024