Monosaccharide Notation - Trivial Names

Trivial names exist for various frequently occurring modified monosaccharides. For example, 6-deoxy-Galactose is called Fucose (Fuc), or D-glycero-D-3,5-dideoxy-5-amino-galactoNonulonic acid is referred to as Neuraminic acid (Neu). The latter is only defined in D-configuration, i.e. there is no L-Neu. Therefore, "D-Neu" is redundant information, but nevertheless frequently used.

Below there are lists of trivial names used in MonosaccharideDB. Not all of them are supported in all notation schemes. If both a trivial and a systematic name for a monosaccharide are possible in a specific name scheme, the alias list of the respective entry in MonosaccharideDB contains both versions in most cases, with one of them marked as the primary alias.

Deoxy monosaccharides:

Trivial Name Description Examplesa Comment
Abequose (Abe) 3,6-dideoxy-D-xylo-Hexose a-D-Abep
  • always D-Configuration (L-Form: Colitose)
Amicetose (Ami) 2,3,6-trideoxy-erythro-Hexose a-D-Amip
Ascarilose (Asc) 3,6-dideoxy-L-arabino-Hexose a-L-Ascp
  • always L-Configuration (D-Form: Tyvelose)
Boivinose (Boi) 2,6-dideoxy-xylo-Hexose a-D-Boip
Colitose (Col) 3,6-dideoxy-L-xylo-Hexose a-L-Colp
  • always L-Configuration (D-Form: Abequose)
Digitoxose (Dig) 2,6-dideoxy-D-ribo-Hexose a-D-Digp
  • always D-Configuration
Fucose (Fuc) 6-deoxy-Galactose a-L-Fucp
Paratose (Par) 3,6-dideoxy-D-ribo-Hexose a-D-Parp
  • always D-Configuration
Quinovose (Qui) 6-deoxy-Glucose a-D-Quip
Rhamnose (Rha) 6-deoxy-Mannose a-L-Rhap
Rhodinose (Rho) 2,3,6-trideoxy-threo-Hexose a-L-Rhop
Tyvelose (Tyv) 3,6-dideoxy-D-arabino-Hexose a-D-Tyvp


Trivial Name Description Examplesa Comment
Erythrulose (Eru) glycero-Tetro-2-ulose keto-D-Eru
Fructose (Fru) arabino-Hexo-2-ulose a-D-Fruf
Psicose (Psi) ribo-Hexo-2-ulose a-D-Psif
Ribulose (Rul) erythro-Pento-2-ulose a-D-Rulf
Sedoheptulose (Sed) altro-Hepto-2-ulose a-D-Sedp
Sorbose (Sor) xylo-Hexo-2-ulose a-D-Sorf
Tagatose (Tag) lyxo-Hexo-2-ulose a-D-Tagf
Xylulose (Xul) threo-Pento-2-ulose a-D-Xulf

Keto-ulosonic acids (including sialic acids):

Trivial Name Description Examplesa Comment
Ketodeoxynonulonic acid (Kdn) D-glycero-D-3-deoxy-galacto-Nono-2-ulosonic acid (D-gro-D-3-deoxy-galNon2ulo-onic) a-D-Kdnp
  • always D-Configuration
Ketodeoxyoctulosonic acid (Kdo) D-3-deoxy-manno-Octo-2-ulosonic (D-3-deoxy-manOct2ulo-onic) a-D-Kdop
  • always D-Configuration
Ketooctonic acid (Ko) D-glycero-D-tallo-Octo-2-ulosonic acid (D-gro-a-D-talOct2ulo-onic) aXKop (BCSDB name)
  • always D-Configuration
Legionaminic acid (Leg) D-glycero-D-3,5,7,9-tetradeoxy-5,7-diamino-galacto-Nono-2-ulosonic acid (D-gro-D-3,9-deoxy-galNon2ulo5N7N-onic) a-D-Legp
  • always D-Configuration
4-epi Legionaminic acid (4eLeg) D-glycero-D-3,5,7,9-tetradeoxy-5,7-diamino-tallo-Nono-2-ulosonic acid (D-gro-D-3,9-deoxy-talNon2ulo5N7N-onic) aX4eLegp (BCSDB name)
  • always D-Configuration
8-epi Legionaminic acid (8eLeg) L-glycero-D-3,5,7,9-tetradeoxy-5,7-diamino-galacto-Nono-2-ulosonic acid (L-gro-D-3,9-deoxy-galNon2ulo5N7N-onic) aX8eLegp (BCSDB name)
  • always L-Configuration
Neuraminic acid (Neu) D-glycero-D-3,5-dideoxy-5-amino-galacto-Nono-2-ulosonic acid (D-gro-D-3-deoxy-galNon2ulo5N-onic) a-D-Neup
  • always D-Configuration
  • frequently further substituted (esp. acetylated)
Pseudaminic acid (Pse) L-glycero-D-3,5,7,9-tetradeoxy-5,7-diamino-manno-Nono-2-ulosonic acid (L-gro-a-L-3,9-deoxy-manNon2ulo5N7N) aXPsep (BCSDB name)
  • always L-Configuration

Amino sugars:

Trivial Name Description Examplesa Comment
Bacillosamine (Bac) D-2,4,6-trideoxy-2,4amino-Glucose a-D-Bacp
Isomuramic acid (iMur) 3(s)-lactate-D-Glucosamine aXiMurp (BCSDB name)
Muramic acid (Mur) 3(r)-lactate-D-Glucosamine a-D-Murp
  • often acetylated (MurNAc)
Purpurosamine C (PurC) 2,3,4,6-tetradeoxy-2,6-diamino-D-erythro-Hexose aXPurCp (BCSDB name)
  • always D-Configuration


Trivial Name Description Examplesa Comment
Cymarose (Cym) 2,6-dideoxy-3-O-methyl-D-ribo-hexose a-L-Cymp
Oleandrose (Ole) 2,6-dideoxy-3-O-methyl-arabino-Hexose a-L-Olep

a: Unless otherwises stated, examples are given in CarbBank notation. Some of the residue names used as examples are secondary aliases, i.e. the systematic name is preferred over the trivial name in the used notation.