d-

d- a chemical prefix specifying the relative configuration of an enantiomer, indicating a carbohydrate with the same configuration at a specific carbon atom as d-glyceraldehyde or an amino acid having the same configuration as d-serine. Opposed to .

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d- /d- / dextro- (right or clockwise, dextrorotatory). Opposed to .

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d-

pref.

Relating to the configuration of d-glyceraldehyde, a compound chosen as the basis for stereochemical nomenclature because it is the simplest carbohydrate that can form optical isomers: d-fructose.

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d-

pref. d-

To the right; dextro: d-tartaric acid.

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d- 

abbreviation for dextro- (right or clockwise); a chemical prefix indicating an enantiomer that rotates the plane of polarization of a beam of light in the clockwise direction, the other enantiomer being specified as l- (for levo-). The prefixes d- and l- are now being replaced by (+)- and (−)-, respectively, especially when the prefixes d- and l- are also used; for example, l-fructose is d-(−)-fructose.

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d- 

chemical prefix specifying the relative configuration of an enantiomer, the mirror image configuration being specified l-. Carbohydrates are designated as d- or l- depending on their configuration at the asymmetric carbon atom most distant from the carbonyl functional group, being compared in chemical configuration to the standard substance d-glyceraldehyde. Amino acids are designated according to their configuration at the asymmetric carbon atom closest to the carbonyl group, with d-serine being the standard.

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d-

prefix, dextro-.