N-Acetylglucosamine (N-acetyl-D-glucosamine, or GlcNAc, or NAG) is a derivative of . It is an amide between and . It has a molecular formula of 8156, a of 221.21 g/mol, and it is significant in several biological systems.
It is part of a biopolymer in the bacterial , built from alternating units of GlcNAc and (MurNAc), cross-linked with at the residue of MurNAc. This layered structure is called .
GlcNAc is the monomeric unit of the polymer , which forms the outer coverings of and . GlcNAc is also of note in , where it is thought to be an atypical functioning in nocioceptive () pathways.
Polymerized with it forms .

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Shelf Life : 24 Months
Flavor : Neutral
Best Before : 24 Months from Manufacturing Date
Packaging Size : 100g, 250g, 500g, 1kg
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Strength : 5000 mg/serving
Shelf Life : 36 Months
Flavor : Unflavored
Best Before : 36 months from manufacturing date
Packaging Size : 25kg drum / Customized
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Strength : USP/EP grade
Shelf Life : 2 Years
Flavor : Unflavored / Tasteless
Best Before : 2 years from date of manufacture
Packaging Size : 25 kg
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Shelf Life : 2 Years
Flavor : Characteristic, slightly sweet
Best Before : 24 months from date of manufacture