How To Use Hydroxyl group In A Sentence
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The presence of two hydroxyl groups permits the formation of hydrogen with water, thereby favoring miscibility with the latter.
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Phenol has the functional hydroxyl group that is then conjugated by a Phase II reaction (sulphation) to phenyl sulfate.
Biotransformation
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Pentosan polysulfate sodium (pentosan) is a semi-synthetic drug manufactured from beech-wood hemicellulose by sulfate esterification of the xylopyranose hydroxyl groups.
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Hydroxyl groups in the cellulose molecule cause rayon to absorb water; in the dry state the fibers are hydrogen bonded, and dry rayon retains its strength even at high temperatures.
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When this hydroxyl group is then methylated to give there is a very significant, 3000-fold, decrease in inhibitor binding.
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The clays consist of silica tetrahedra and the octahedra contain magnesia surrounded by oxygen atoms and hydroxyl groups.
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One particular pleasure of that period was the development of the methoxyl-trityl family of protecting groups for nucleoside-5'-hydroxyl groups (one synthesis of trimethoxytritanol erupted and left a large orange stain on the laboratory ceiling); this class of protecting group is still in use in modern automated syntheses of DNA and RNA fragments.
Michael Smith - Autobiography
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In a similar way, sheets of octahedra are formed from aluminium, oxygen and hydroxyl groups.
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Different functionality may be introduced by using comonomers such as methacrylic acid (carboxylic acid groups) or hydroxy ethyl acrylate (hydroxyl groups).
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The clays consist of silica tetrahedra and the octahedra contain magnesia surrounded by oxygen atoms and hydroxyl groups.
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In contrast, when the 4'-ketone group of ABA is reduced to form the diols then the 1'-oxygen becomes labile and exchanges and even epimerizes and so also does the oxygen atom of the 4'-hydroxyl group.
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Phenols are a subgroup of alcohol in which the hydroxyl groups are attached directly to the carbon atoms of a ring structure.
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Replacement of the 3-hydroxyl group with a monosaccharide or of the
Wil's Ebay E-Store
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A normal salt does not have any acidic protons or hydroxyl groups.
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The presence of a double bond at position C-2-3 in the flavone and flavonol aglycones, a keto group at C-4, B ring hydroxylation and/or a free hydroxyl group at C-3 may be associated with activity.
Wil's Ebay E-Store
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Alcohols have one, two, or three hydroxyl groups attached to their molecules and are thus classified as monohydric, dihydric, or trihydric, respectively.
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Ethanol ( grain alcohol ) and methanol ( wood alcohol ) are the Best - known alcohols with one hydroxyl group.
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Accordingly, both the stereochemistry of and the steric hindrance around the interactive hydroxyl group crucially affect the supramolecular structure of the self-assembled chromophores.
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All K atoms coordinate with O atoms of phenolic hydroxyl group and nitro - group simultaneously.
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Alkaline earth metal ions more readily bind ‘hard’ ligands such as phosphates, carboxylates, and hydroxyl groups.
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This is caused by a dehydration reaction between the hydroxyl group from the glycerol and the carboxyl groups of the fatty acids.
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The carbonyl group can be broken down by the action of hydrogen cyanide; a hydroxyl group and a nitrile group are formed in this reaction.
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The number of vicinal hydroxyl groups corresponds to the chemical and biological activity of the compound; thus kaempferol is often less active than quercetin and myricetin.
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A glycol is an aliphatic organic compound in which two hydroxyl groups are present.
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The clays consist of silica tetrahedra and the octahedra contain magnesia surrounded by oxygen atoms and hydroxyl groups.
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Soy protein is inexpensive and renewable, but it lacks the unique amino acid with phenolic hydroxyl groups that provide adhesive properties.
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If the hydroxyl group is bound to a carbon atom that is itself bound to three other carbon atoms then the resultant alcohol is a tertiary alcohol.
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Electron - withdrawing groups attached to the carbon containing the hydroxyl group will serve to stabilize the alkoxide when formed, thus resulting in greater acidity.
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The spacing between the protruding oxygen atoms is comparable to the spacing between certain of the hydroxyl groups in layers of magnesium hydroxide (brucite) or aluminum hydroxide (gibbsite).
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Compounds in which two hydroxyl groups are attached to the same carbon atom (geminal diols) normally cannot be isolated.
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Glycerol is a trihydric alcohol, which means each molecule has three hydroxyl groups.
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Fine-changing the structure, namely, substituting the hydroxyl group in the cyclic imide ring of 4 by a methylester group, triggers accumulation of 5 in the lipid droplets.
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Chemically, tannins are complex phenolic polymers containing aliphatic and phenolic hydroxyl groups and in some cases, carboxyl groups.
Chapter 4
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Both the free hydroxyl groups readily undergo esterification.
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A substance such as glycine (this name too comes from the Greek word for "sweet"), which is not related to the sugars and does not possess an ordinary hydroxyl group, is sweet to the taste.
The Human Brain
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Glycerol is a polyhydroxy alcohol containing three carbon atoms and three hydroxyl groups.
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The intra-molecular potential was parameterized to simulate a rigid structure with surface hydroxyl groups that are free to rotate in an AMBER-style torsional potential.
