N-Acetylgalactosamine

N-Acetylgalactosamine

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Names
IUPAC name 2-(Acetylamino)-2-deoxy-D-galactose
Other names GalNAc; 2-Acetamido-2-deoxy-D-galactose; N-Acetylchondrosamine; 2-Acetamido-2-deoxy-D-galactopyranose; N-Acetyl-D-galactosamine
Identifiers
CAS Number	31022-50-1 N
ChEBI	CHEBI:40356 Y
ChemSpider	76020 Y
Jmol 3D model	Interactive image
PubChem	84265
InChI InChI=1S/C8H15NO6/c1-3(11)9-5-7(13)6(12)4(2-10)15-8(5)14/h4-8,10,12-14H,2H2,1H3,(H,9,11)/t4-,5-,6+,7-,8+/m1/s1 Y Key: OVRNDRQMDRJTHS-CBQIKETKSA-N Y InChI=1/C8H15NO6/c1-3(11)9-5-7(13)6(12)4(2-10)15-8(5)14/h4-8,10,12-14H,2H2,1H3,(H,9,11)/t4-,5-,6+,7-,8+/m1/s1 Key: OVRNDRQMDRJTHS-CBQIKETKBW
SMILES O[C@@H](C(CO)O[C@H](O)[C@H]1NC(C)=O)[C@H]1O
Properties
Chemical formula	C8H15NO6
Molar mass	221.21 g/mol
Melting point	172 to 173 °C (342 to 343 °F; 445 to 446 K)
Vapor pressure	{{{value}}}
Related compounds
Related monosaccharides	N-Acetylglucosamine Galactosamine Galactose
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references

N-Acetylgalactosamine (GalNAc), is an amino sugar derivative of galactose.

Function

In humans it is the terminal carbohydrate forming the antigen of blood group A.

It is typically the first monosaccharide that connects serine or threonine in particular forms of protein O-glycosylation.

N-Acetylgalactosamine is necessary for intercellular communication, and is concentrated in sensory nerve structures of both humans and animals.

See also

• Galactosamine
• Globoside
• GlcNAc (N-acetylglucosamine)