N-Acetylneuraminic acid (Neu5Ac), commonly known as sialic acid, is a nine-carbon sugar molecule that plays a fundamental role in human biology. It is a major component of glycoconjugates-such as glycolipids, glycoproteins, and proteoglycans-where it occupies the terminal position on these complex molecules, conferring selective binding characteristics.
Biosynthesis and Physiological Context: Neu5Ac is the most abundant sialic acid in humans and serves as the biosynthetic precursor of most other sialic acids. It is involved in a wide range of biological processes, including immune modulation (acting as "self" markers), brain development and cognition (concentrated in brain gangliosides), and muscle health (deficiencies are associated with inherited muscle diseases).
Specification: ≥98.0% (HPLC, on anhydrous basis)
Sample: Sample Available
Test method: HPLC / UV-Vis
Synonyms: N-Acetylneuraminic acid, NANA, Neu5Ac, Sialic acid, 5-Acetamido-3,5-dideoxy-D-glycero-D-galactononulosonic acid, Lactaminic acid
MOQ: 1 KG | Package: 1kg/foil bag, 25kgs/drum
Certificate: HACCP, ISO 22000, GMP, Kosher (available upon request)
Molecular Formula: C₁₁H₁₉NO₉ | CAS: 131-48-6

Product Characteristics
Appearance
Purity
Solubility
Role
Particle Size
GMP Manufacturing
COA (Certificate of Analysis)
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Benefits of N-Acetylneuraminic Acid Powder
01Essential Component of Glycoconjugates
Neu5Ac is a key component of glycoconjugates such as glycolipids, glycoproteins, and proteoglycans, where it confers selective binding characteristics essential for cellular function.
02Cell Recognition and Adhesion
As the terminal sugar of cell surface glycoproteins, Neu5Ac plays important roles in cell recognition and interaction as well as in cell adhesion.
03Brain and Cognitive Health
Sialic acid is concentrated in brain tissue and is critical for neural development, synaptic plasticity, and cognitive function. Supports brain health and mental clarity.
04Muscle Health and Neuromuscular Disorders
Deficiencies in sialic acid biosynthesis are linked to neuromuscular diseases such as GNE myopathy. Supplementation is being investigated as a therapeutic strategy.
05Immune Modulation
Sialic acids on cell surfaces act as "self" markers, modulating immune recognition and preventing inappropriate immune responses.
06Novel Food Compliant & High Purity
Meets EU Novel Food Union List specifications with strict controls on residual proteins, solvents, heavy metals, and endotoxins.
Application Fields
Dietary Supplements (Hero Application): Capsules & tablets (for cognitive and neuromuscular health), powdered drink mixes, gummies & chewables, specialized formulations for sialic acid metabolism conditions.
Pharmaceuticals & Research: API for drug formulations, cell culture media, research material for glycobiology and metabolomics.
Food & Nutrition: Functional foods & beverages, infant formula (as a component of human milk oligosaccharides).
OEM Finished Products: Cognitive support capsules, neuromuscular support formula, brain health gummies, protein bars, custom sialic acid precursor blends - full custom manufacturing available.
Production Process

Process: Microbial fermentation → ion‑exchange chromatography → crystallization → gentle drying → milling → sieving → light‑protected packaging.
Product Quality Advantage
≥98% Purity – HPLC verified, high‑quality sialic acid.
Novel Food Compliant – Meets EU Union List specifications.
Low Heavy Metals – Pb <0.05 mg/kg, Fe <5 mg/kg.
Low Endotoxins – <5 EU/mg, suitable for pharmaceutical use.
Excipient‑Free – 100% active ingredient.
cGMP Certified – Full traceability and documentation.


Annual Capacity: 1,500 Tons | 15+ years of carbohydrate chemistry expertise
Professional ODM/OEM Services
We provide full OEM/ODM manufacturing for finished products using N-Acetylneuraminic Acid as the active ingredient - from concept to commercial delivery, all under one roof.
① Finished Dosage Forms
Capsules: 100 mg, 200 mg, 500 mg; vegetarian/gelatin; custom bottle/blister.
Tablets: Direct compression; round/oval; debossing.
Chews & Gummies: Custom flavors, sugar‑free options.
Powder Blends: Stick packs, tubs; with ManNAc, other precursors.
Liquids: Solutions, suspensions, ready‑to‑drink.
Bars: Protein bars, snack bars.
② Combination Options
Neu5Ac + ManNAc (sialic acid precursor synergy), Neu5Ac + Cognitive Support Blends.
③ Additional Services
Flavor development, third‑party certification (NSF, Kosher, HALAL), stability testing, regulatory documentation (EU Novel Food compliance support).
📧 Email: wangjing@landnutra.com
📱 WhatsApp: +86 18092657549
All backed by LANDNUTRA's quality assurance - full GMP, Halal, Kosher, COA certification and complete traceability from sourcing to finished product.
Export Certificates

Why choose us
XI'AN LANDNUTRA CO., LTD. – Your Trusted Manufacturer of Functional Ingredients. Rooted in Quality, Driven by Expertise, Committed to Health and Excellence.
Strong Production Capability: Annual capacity 1,500 tons. 15+ years experience, own facility.
Leading Service: ONE-STOP OEM/ODM from pre-sales to after-sales.
Quality Assurance: CQC-certified enterprise, purity embedded in every process.
Broad Market: Botanical Extracts, Cosmetic Ingredients, Functional Ingredients.
15+ years of expertise in functional ingredients and carbohydrate chemistry. Vertically integrated from raw material sourcing to finished goods manufacturing. Batch‑specific COA including assay, pH, water content, heavy metals, residual proteins, residual solvents, endotoxins, and microbiological limits. Technical support for formulation and stability.
FAQ
| Test Item | Specification (Novel Food / USP Grade) | Test Result | Conclusion |
|---|---|---|---|
| Appearance | White to off-white crystalline powder | Conforms | Pass |
| Assay (HPLC) | ≥98.0% | 99.4% | Pass |
| pH (5% solution) | 1.7 – 2.5 | 2.0 | Pass |
| Water Content (KF) | ≤12.5% | 8.5% | Pass |
| Residue on Ignition | <0.2% | 0.07% | Pass |
| Lead (Pb) | <0.1 mg/kg | <0.05 mg/kg | Pass |
| Endotoxins | <10 EU/mg | <5 EU/mg | Pass |
| Total Plate Count | <500 CFU/g | <100 CFU/g | Pass |
| E. Coli / Salmonella | Negative | Negative | Pass |
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