Product Overview: The Foundation of Glycobiology Innovation
N-Acetylneuraminic Acid (Neu5Ac), the predominant form of Sialic Acid, is a 9-carbon monosaccharide critical to glycoprotein and ganglioside structures. As a key mediator of cell-to-cell recognition, immune response modulation, and pathogen defense, it is an indispensable building block for cutting-edge applications.
SRBio delivers >99% HPLC-verified Neu5Ac through a proprietary, non-animal enzymatic synthesis platform. By eliminating animal-derived contamination risks and ensuring batch-to-batch consistency, our Neu5Ac provides the purity, safety, and reliability required for the world’s most demanding pharmaceutical, nutritional, and diagnostic applications.
Uncompromising Quality: SRBio’s Manufacturing Excellence
1. Precision Quality Control: Beyond Pharmacopoeia Standards
| Parameter | SRBio Standard (Standard Grade) | SRBio Standard (Pharmaceutical Grade) | Test Method | Why It Matters |
|---|---|---|---|---|
| Purity (Assay) | ≥99.0% | ≥99.5% | HPLC-ELSD/UV; qNMR | Guarantees high activity and predictable performance in sensitive formulations. |
| Appearance | White to off-white crystalline powder | White crystalline powder | Visual | Indicates high purity and consistent polymorphic form. |
| Specific Rotation [α]²⁰D | -32.0° to -36.0° (c=2, H₂O) | -33.0° to -35.0° (c=2, H₂O) | Polarimetry | Confirms correct stereochemistry and optical purity, critical for bioactivity. |
| Heavy Metals | ≤10 ppm | ≤5 ppm | ICP-MS | Ensures safety for chronic use and compliance with global pharmacopoeias. |
| Endotoxins | <0.1 EU/mg | <0.05 EU/mg | LAL Test (Gel Clot / Chromogenic) | Meets stringent requirements for injectable and parenteral applications. |
| Residual Solvents | Meets ICH Q3C Class 2 Limits | Meets ICH Q3C Class 2 & 3 Limits | GC-FID | Confirms removal of processing solvents, ensuring patient safety. |
| Water Content (KF) | ≤1.0% | ≤0.5% | Karl Fischer Coulometry | Prevents hydrolysis and microbial growth, ensuring long-term stability. |
| Microbiology (USP <61>/<62>) | Compliant (Absence of pathogens) | Sterile (upon request) | Membrane Filtration | Guarantees suitability for diverse applications, from infant formula to cell culture. |
2. Advanced Fermentation & Purification Technology
Proprietary Biosynthesis Platform:
-
Engineered Microbial Strains: Utilizes genetically optimized, non-pathogenic E. coli strains with specific gene knockouts (e.g., neuraminidase) to prevent product degradation and maximize yield.
-
High-Cell-Density Fermentation: 5,000L fed-batch bioreactors achieve industry-leading titers (>15 g/L), significantly reducing production costs and environmental footprint.
-
Animal-Free & Sustainable: 100% microbial biosynthesis process, eliminating risks associated with animal-derived materials. Full non-GMO process documentation available.
Solvent-Free & Precision Purification:
-
Tangential Flow Filtration (TFF): Removes high-molecular-weight proteins, cell debris, and nucleic acids.
-
Multi-Stage Ion-Exchange Chromatography: Selectively isolates Neu5Ac from structurally similar carbohydrates and anionic impurities.
-
Controlled Crystallization: Ethanol-water recrystallization ensures consistent polymorphic form and crystal habit for optimal handling.
-
Low-Temperature Lyophilization: Gentle drying preserves molecular integrity and guarantees rapid solubility.
3. Stability & Shelf-Life Superiority
-
Long-Term Stability: Retains ≥98% potency after 36 months when stored at -20°C in sealed, nitrogen-flushed containers (ICH Q1A compliant).
-
Forced Degradation Studies: Demonstrates stability under thermal, oxidative, and photolytic stress, with well-characterized degradation pathways.
-
Formulation Compatibility: Proven stable in complex matrices, including protein conjugates, lipid emulsions, and aqueous nutritional formulas.
Scientific Foundation: Mechanism & Key Applications
1. Core Biological Roles
-
Cell-Cell Recognition & Signaling: As a terminal sugar on glycoproteins and glycolipids (gangliosides), Neu5Ac is a key modulator of cellular interactions, immune cell communication, and signal transduction.
-
Pathogen Decoy & Defense: Serves as a receptor for various pathogens (e.g., influenza viruses), making it critical for both infection mechanisms and host defense strategies.
-
Brain Development & Cognition: A key component of brain gangliosides and sialylated glycoproteins, essential for neuronal outgrowth, synaptogenesis, and memory formation.
2. Targeted Applications & Supporting Evidence
| Application Area | Specific Use | Biological Mechanism / Rationale | Evidence & Data |
|---|---|---|---|
| Advanced Therapeutics | Viral Entry Inhibitors: Anti-influenza drugs (e.g., Zanamivir analogues). Oncology: Sialyltransferase inhibitors for cancer therapy. | Analogues inhibit viral neuraminidase, preventing viral release. Modulating tumor cell sialylation affects immune recognition. | Published IC₅₀ data in technical dossier. Active research in immuno-oncology. |
| Vaccine Development | Conjugate Vaccines: Covalently linked to carrier proteins (e.g., CRM197, TT) to enhance immunogenicity of polysaccharide antigens (e.g., S. pneumoniae, N. meningitidis). | T-cell dependent immune response generation, crucial for efficacy in infants. | Widely used in licensed vaccines. SRBio provides full analytical support for conjugation studies. |
| Clinical Nutrition | Infant Formula Fortification: Added to mimic human milk oligosaccharide (HMO) profiles. Maternal Health: Supports fetal brain development. Medical Foods: For cognitive support in aging. | Provides essential sialic acid for optimal brain development during critical windows. Synergistic with DHA/ARA. | Clinically validated cognitive benefits in infants (data available). Supports synaptic plasticity. |
| Diagnostic Reagents | Cancer Biomarkers: Detection of sialylated tumor markers (e.g., CA19-9, CA125). Infectious Disease: Substrate for viral neuraminidase assays. | Altered sialylation patterns are hallmarks of many cancers. Neuraminidase activity indicates viral load. | High purity ensures low background noise and high sensitivity in diagnostic kits. |
| Cosmeceuticals | Glycocalyx Repair: Restores cell surface glycans damaged by environmental stress. Bioactive Anti-Aging: Stimulates collagen synthesis and skin regeneration. | Promotes keratinocyte differentiation and fibroblast activity. Restores skin barrier function. | In vitro and in vivo studies demonstrate improved skin hydration and elasticity. |
3. Safety & Regulatory Profile
-
High Safety Margin: GRAS (Generally Recognized as Safe) status for use in infant formula and food supplements.
-
Regulatory Status:
-
USA: FDA DMF (Type IV) on file. TSCA compliant.
-
EU: CEP (European Pharmacopoeia) available. REACH compliant.
-
China: Compliant with national food additive and nutritional enhancer standards.
-
Certifications: Kosher, Halal, Non-GMO Project Verified documentation available.
-
Formulation-Ready Advantages
| Property | SRBio N-Acetylneuraminic Acid | Typical Market Alternative |
|---|---|---|
| Purity Consistency | ±0.2% batch variance (e.g., 99.1-99.5%) | ±2-5% variance (e.g., 97-102%) |
| Endotoxin Control | <0.05 EU/mg (validated for injectables) | 0.1–1.0 EU/mg or uncontrolled |
| Particle Size | Customizable (e.g., micronized for suspensions, standard for blending) | Often inconsistent, only standard grade |
| Solubility | >100 mg/mL in water (20°C) | Variable |
| Traceability | Full e-batch records, Lot-specific CoA with impurity profiles | Basic CoA only |
| Customization | Salt forms (e.g., sodium salt), isotopic labels (¹³C, ¹⁵N), GMP-grade | Standard grade only |
Application-Specific Benefits:
-
Pharmaceutical R&D & GMP Manufacturing:
-
Conjugate Vaccine Production: Consistent purity ensures reproducible conjugation efficiency and immunogenicity.
-
Active Pharmaceutical Ingredient (API): DMF and CEP support accelerate regulatory filings for new drug applications.
-
Cell Culture Media: Ultra-low endotoxin grade supports sensitive cell lines and production of biologics.
-
-
Clinical & Specialty Nutrition:
-
Infant Formula: Meets stringent global standards for infant formula ingredients; kosher/halal certified.
-
Medical Foods: Stable in liquid and powder formats; compatible with vitamins and minerals.
-
Senior Nutrition: Formulated for cognitive health products targeting memory and focus.
-
-
Cosmeceuticals & Personal Care:
-
Anti-Aging Serums & Creams: Soluble and stable in aqueous and emulsion-based formulations.
-
Oral Beauty Supplements: Tablets, capsules, or stick packs for “beauty from within” applications.
-
Supply Chain & Compliance Leadership
1. Audited Transparency & Traceability
-
Full Electronic Batch Records (EBR): Complete documentation from fermentation to final packaging, including strain genealogy and fermentation logs.
-
Lot-Specific Certificate of Analysis (CoA): Detailed data on purity, identity (FT-IR/NMR), heavy metals (ICP-MS), residual solvents (GC-FID), and microbiology.
-
Vertical Integration: Control over the entire process—from strain development and fermentation to purification and packaging—ensures quality, security, and cost control.
-
Global Logistics Expertise: Cold-chain shipping (-20°C) with real-time temperature monitoring for guaranteed integrity. FOB, CIF, DDP terms available.
2. Global Regulatory Certifications & Documentation
| Certification / Compliance | Status / ID | Documentation Available |
|---|---|---|
| FDA Drug Master File (DMF) | Type IV (for excipient) – Active and open for reference | Letter of Authorization, full DMF summary |
| CEP (European Pharmacopoeia) | Available upon request | Certificate of Suitability |
| Kosher Certification | Certified | Certificate |
| Halal Certification | Certified | Certificate |
| Non-GMO Project Verified | Documentation available | Verification statement |
| ISO 9001:2015 | Certified | Certificate |
| REACH Compliance | Registered | Pre-registration / Compliance statement |
| TSCA Inventory | Listed | Compliance statement |
| Comprehensive Documentation Package | Available | CoA, TDS, MSDS, stability (ICH), elemental impurities, allergen statement, BSE/TSE free |
3. Supply Chain Resilience
-
Strategic Raw Material Partnerships: Long-term agreements for pharmaceutical-grade media components guarantee production stability.
-
Scalable Manufacturing Capacity: From milligrams to 500+ kg per month, with flexible scheduling to meet R&D, clinical, and commercial demands.
-
Vendor-Managed Inventory (VMI): Programs available for just-in-time delivery and supply security.
-
Dual Sourcing Strategy: Redundant fermentation lines ensure business continuity.
Competitive Breakdown: SRBio vs. Market Alternatives
Key Deficiencies in Standard N-Acetylneuraminic Acid:
-
Inconsistent Purity: Batch-to-batch variability leads to unpredictable results in sensitive applications like conjugation and cell culture.
-
High Endotoxin Levels: Unsuitable for injectable or biological manufacturing.
-
Animal-Derived Processing: Risk of contamination and regulatory hurdles.
-
Limited Regulatory Support: Lack of DMF, CEP, or other filings slows down customer product approvals.
-
Poor Scalability: Suppliers struggle to move from R&D quantities to commercial volumes.
SRBio’s Technology Edge:
| Capability | SRBio | Typical Market Supplier |
|---|---|---|
| Purity (HPLC) | ≥99.0% (std), ≥99.5% (pharma) | 95% – 99% (often inconsistent) |
| Batch-to-Batch Consistency | ±0.2% variance | ±2-5% variance |
| Endotoxin Level | <0.05 EU/mg (injectable grade) | >0.1 EU/mg or uncontrolled |
| Production Process | Animal-free, enzymatic synthesis | Often animal-derived or chemical synthesis |
| Regulatory Dossiers | FDA DMF, CEP, Kosher, Halal | Limited or absent |
| Scale-Up Capability | mg to 500+ kg/month | Often limited to <100 kg/month |
| Customization | Salt forms, isotopic labels, GMP grades | Standard grade only |
| Technical Partnership | Full analytical and regulatory support | Limited |
Partner Success Stories (Illustrative)
Global Vaccine Manufacturer:
“SRBio’s N-Acetylneuraminic acid provided the exceptional purity and batch-to-batch consistency we required for our conjugate vaccine program. Their comprehensive regulatory package and DMF significantly streamlined our FDA filing.”
— Head of Process Development
Leading European Infant Nutrition Company:
“We partnered with SRBio for their reliable supply and commitment to quality. Their non-GMO, animal-free Neu5Ac meets our strictest sustainability and safety standards for our premium infant formulas.”
— Senior Procurement Manager
US-Based Biotech Startup (Oncology):
“The technical support from SRBio was invaluable. They provided custom isotopic labels for our research and helped us troubleshoot formulation challenges. They are a true extension of our R&D team.”
— CSO
Technical Partnership Program
1. Co-Development & Scientific Support Services
-
Analytical Services:
-
Structure Confirmation: ¹H/¹³C NMR, HRMS, FT-IR.
-
Impurity Profiling: HPLC-ELSD chromatograms, identification of related substances.
-
Method Development & Validation: Custom HPLC/UPLC methods for your specific formulation.
-
-
Custom Synthesis:
-
Salt Forms: Sodium, potassium salts for modified solubility or stability.
-
Isotopic Labels: ¹³C, ¹⁵N, ²H labeled Neu5Ac for tracer studies and internal standards.
-
Impurity Reference Standards: Synthesis of specified impurities for regulatory compliance.
-
-
Bioactivity & Formulation Support:
-
Cell-Based Assays: Custom protocols for evaluating bioactivity (e.g., neurite outgrowth, viral inhibition).
-
Conjugation Studies: Support for vaccine conjugate development and analysis.
-
Stability Studies (ICH): For your specific formulation matrix (liquids, solids, conjugates).
-
2. Market-Ready Solutions
-
Regulatory Support:
-
DMF & CEP: Full support for referencing our filings.
-
Regulatory Response: Assistance in responding to agency questions.
-
Global Compliance: Support for NDI, Novel Food, or other regional submissions.
-
-
Supply Chain Solutions:
-
Vendor-Managed Inventory (VMI): Just-in-time delivery programs.
-
Consignment Stock: Inventory held locally for guaranteed supply.
-
Rapid Sampling: Receive 10g / 100g / 1kg trial batches with full CoA + MSDS within 72 hours.
-
Request Your N-Acetylneuraminic Acid Discovery Kit
Includes:
-
10g / 100g / 500g Sample (HPLC-verified, ≥99.0% purity)
-
Full Certificate of Analysis (CoA, TDS, MSDS, Allergen Statement)
-
NMR & FT-IR Spectra (Structure confirmation)
-
Stability Data Summary (36 months, ICH-compliant)
-
Regulatory Dossier Excerpts (FDA DMF, CEP information)
-
Application Guide for Pharmaceuticals, Nutrition, and Cosmetics
Partner with SRBio for Premium, Sustainable N-Acetylneuraminic Acid
Choose SRBio as your trusted partner for:
-
Guaranteed Supply Continuity backed by scalable fermentation and dual sourcing.
-
Uncompromising Quality Standards verified by third-party certifications and comprehensive batch documentation.
-
Competitive Total Cost of Ownership through efficient, sustainable biosynthesis.
-
Strategic Technical Partnership with joint development support from discovery to commercialization.
-
Proven Product Performance supported by stability data and regulatory filings.
-
Reliable Global Logistics with extensive regional experience and flexible shipping terms.
Start Your Supplier Qualification Today:
→ Email: admin@plantextractssr.com
→ Phone: +86-13720408392
→ WhatsApp/WeChat: +86-13720408392
Video & Articles
Xi’an SR Bio-Engineering Co., Ltd
Xi’an SR Bio-Engineering Co., Ltd
Xi’an SRBio is a professional wholesale provider of many quality nutritional supplements products and AMINO ACID Powde etc.
We supply powder, tablets and capsules.
