150px|thumb|Glyceraldehyde|D-Glyceraldehyde is an aldotriose because the [[carbonyl group is at the end of the chain]] 150px|thumb|Dihydroxyacetone is a ketotriose because the carbonyl group is the center of the chain.
150px|thumb|Glyceraldehyde|D-Glyceraldehyde is an aldotriose because the [[carbonyl group is at the end of the chain]] 150px|thumb|Dihydroxyacetone is a ketotriose because the carbonyl group is the center of the chain.
A triose is a monosaccharide, or simple sugar, containing three carbon atoms. There are only three possible trioses: the two enantiomers of glyceraldehyde, which are aldoses; and dihydroxyacetone, a ketose which is symmetrical and therefore has no enantiomers.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).