Wikipedia says glyceraldehyde-3-phosphate can be abbreviated as G3P, GA3P, GADP, GAP, TP, GALP or PGAL, and many resources seem to use GADP as its abbreviation.

I have no idea where ‘D’ came from. What is ‘D’ in GADP?

  • 3
    $\begingroup$ For "GAPD" I'd assume "glyceraldehyde-3-phosphate dehydrogenase", but for D in "GADP" I can only think of either D-isomer, or the reference to "dihydrogen" in IUPAC name "2-hydroxy-3-oxopropyl dihydrogen phosphate", but neither of these appear particularly logical to me. Good question. $\endgroup$
    – andselisk
    Commented May 22 at 9:16

2 Answers 2


PubChem provides a list of synonyms, amongst which the most reasonable lead to the acronym GADP is "Glyceraldehyde, 3-(dihydrogen phosphate), D- (8CI)"

Acronyms don't always have to be very logical, preferably short and memorable as for NMR experiments.

  • 2
    $\begingroup$ Just thinking of HOHAHA ... $\endgroup$
    – Buttonwood
    Commented May 22 at 14:31

I am going to reiterate what @andselisk said in the comments. The "D" in GADP can also refer to the D-isomer of the molecule. Notice in the below reaction that Fructose-1,6-bisphosphate is abbreviated as F1,6BP which make sense (the letter and digits goes from left to right). By this logic, glyceraldehyde 3-phosphate should have been abbreviated as DGAP but as @BuckThorn said, acronyms don't have to be logical.

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Picture from Wikipedia


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