d-


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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.

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.

d-

Prefix indicating a chemical compound to be dextrorotatory; should be avoided when (+) or (-) could be used. Compare: l-.

d-

Prefix indicating that a chemical compound is sterically related to d-glyceraldehyde, the basis of stereochemical nomenclature. Compare: l-.

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 .

d-

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

D-

In biochemistry, a symbol used as a prefix to indicate the spatial configuration of certain organic compounds with asymmetric carbon atoms. It is used if an organic compound has a configuration about an asymmetric carbon atom analogous to that of D-glyceraldehyde (the arbitrarily chosen standard), in which the hydroxy (OH) functional group is on the right side of the asymmetric carbon atom in a Fischer projection formula.

d-

The symbol for dextrorotatory

d-

1. Prefix indicating a chemical compound to be dextrorotatory; should be avoided when (+) or (-) could be used.
Compare: L-
2. Prefix indicating that a chemical compound is sterically related to d-glyceraldehyde, the basis of stereochemical nomenclature.
Compare: lambda

d-

Abbreviation for dextro-.

d-

prefix, dextro-.