
| Chemical Name: | (R)-3-Acetyloxy-4-(trimethylazaniumyl)butanoate |
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| CAS Number: | 14992-62-2 |
| Molecular Formula: | C₉H₁₇NO₄ |
| Molecular Weight: | 203.24 g/mol |
| Specification: | 99%+ (HPLC) |
| Test Method: | HPLC-UV, Titration |
| Packaging: | Double-layer poly bags inside, sealed foil-lined paper-drums. Net weight: 1kg, 5kg, 25kg/drum |
| Main Benefits: | Supports mitochondrial energy production, crosses blood-brain barrier, provides neuroprotective antioxidant effects |
| Application: | Dietary supplements, cognitive health formulas, sports nutrition |
Fuel Mind and Body with Premium Acetyl-L-Carnitine (ALCAR) by SRBio
SRBio Acetyl-L-Carnitine (ALCAR) is the acetylated ester of L-carnitine, a naturally occurring amino acid derivative crucial for cellular energy metabolism. Unlike standard L-carnitine, the acetyl group allows ALCAR to cross the blood-brain barrier, making it uniquely effective for both peripheral energy support and cognitive function. Sourced and manufactured under strict GMP guidelines, SRBio offers high-purity ALCAR powder designed for optimal bioavailability, stability, and formulation flexibility in premium dietary supplements.
Uncompromising Quality: SRBio’s Manufacturing Excellence
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Precision Purity Control
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HPLC-UV/Titration Dual Verification: Purity is stringently controlled to ≥99.0% (HPLC). Chiral purity (L-isomer) is verified to be >99.5%, ensuring maximum biological activity and absence of the inactive D-form.
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Heavy Metal Screening: ICP-MS analysis confirms conformity with global pharmacopoeia standards (USP, EP): Lead (Pb) < 1 ppm, Arsenic (As) < 0.5 ppm, Cadmium (Cd) < 0.1 ppm, Mercury (Hg) < 0.1 ppm.
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Residual Solvents: GC-FID analysis verifies compliance with ICH Q3C guidelines, with all Class 1 and Class 2 solvents below detectable limits. Residual acetone and ethanol (from synthesis) are controlled to <100 ppm.
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Advanced Synthesis & Purification Technology
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Enantiomerically Pure Synthesis: Proprietary synthesis route starts from high-purity L-carnitine, followed by a selective enzymatic or chemical acetylation process that preserves the chiral integrity of the molecule.
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Multi-Step Purification Process:
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Ion Exchange Chromatography: Removes ionic impurities and unreacted L-carnitine.
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Activated Carbon Treatment: Eliminates color bodies and pyrogenic substances.
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Controlled Crystallization: Low-temperature crystallization from food-grade solvents yields a brilliant white, crystalline powder with consistent particle size and excellent flow properties.
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Eco-Impact: Solvent recovery systems achieve >90% recycling rates, minimizing environmental footprint and ensuring sustainable production.
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Stability & Shelf-Life Superiority
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Accelerated Stability Data: Retains ≥98% potency after 24 months at 25°C/60% RH and 12 months at 40°C/75% RH in sealed, moisture-protected packaging (ICH Q1A tested).
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Hygroscopicity Control: Engineered particle morphology and nitrogen-flushed, foil-laminated packaging minimize moisture absorption, preventing caking and ensuring free-flowing powder characteristics.
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Scientific Evidence: Mechanism & Efficacy
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Dual-Action Mitochondrial Support
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Fatty Acid Oxidation: Transports activated long-chain fatty acids (acyl groups) across the inner mitochondrial membrane for β-oxidation, fueling cellular ATP production in muscles and peripheral tissues.
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Acetyl Group Donation: The acetyl moiety contributes to the acetyl-CoA pool in mitochondria, supporting the Krebs cycle and enhancing energy yield, particularly under high metabolic demand.
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Neurocognitive Benefits
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Blood-Brain Barrier Penetration: The acetyl group facilitates passive diffusion across the blood-brain barrier, delivering carnitine directly to neurons.
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Neurotransmitter Modulation: Serves as a precursor for acetylcholine synthesis and modulates cholinergic neurotransmission, which is vital for memory and learning.
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Clinical Outcomes (Meta-Analysis Review): A meta-analysis of double-blind, placebo-controlled trials (e.g., in Journal of Alzheimer’s Disease) indicates that ALCAR supplementation (1.5-3.0 g/day) can slow cognitive decline and improve clinical scales in patients with mild cognitive impairment and early-stage Alzheimer’s disease.
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Antioxidant & Neuroprotective Effects
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Membrane Stabilization: Protects neuronal membranes from peroxidation by chelating iron and copper ions, reducing free radical damage.
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Mitochondrial Protection in Aging: Shown to restore age-related declines in mitochondrial membrane potential and cardiolipin levels in brain tissue, preserving neuronal energy homeostasis.
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Nerve Growth Factor (NGF) Support: In vitro studies suggest ALCAR can support NGF signaling, promoting neuronal survival and repair.
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Formulation-Ready Advantages
| Property | SRBio Acetyl-L-Carnitine (ALCAR) | Standard L-Carnitine (Base or Tartrate) |
|---|---|---|
| Appearance | White crystalline powder | White to off-white powder/crystals |
| Purity (HPLC) | ≥99.0% | Typically 98-99% |
| Specific Optical Rotation | -28.0° to -32.0° | N/A (for tartrate) or specific to base |
| Bulk Density | 0.40 – 0.60 g/mL (free-flowing) | Variable, often lower or more compacted |
| Hygroscopicity | Low (under controlled conditions) | Moderate to High (L-Carnitine base) |
| Solubility (H₂O) | > 500 mg/mL (freely soluble) | > 500 mg/mL (freely soluble) |
Application-Specific Benefits:
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Cognitive Health Capsules/Tablets: Excellent flowability and compressibility for high-speed tableting. Compatible with common excipients (microcrystalline cellulose, magnesium stearate).
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Sports Nutrition Powders: Neutral taste profile when blended; mixes readily in water or beverages without significant sedimentation. Compatible with electrolytes and BCAAs.
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Anti-Aging & Neuroprotective Formulas: Ideal pairing with other cognitive ingredients like Phosphatidylserine, Ginkgo Biloba, or PQQ for synergistic mitochondrial and brain health formulations.
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Liquid & RTD Formulations: Stable in aqueous solutions within a pH range of 3.0-6.0. Preservative efficacy testing available for custom liquid prototypes.
Supply Chain & Compliance Leadership
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Audited Transparency
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Full Traceability: Certificate of Analysis (COA) includes detailed impurity profile, residual solvent data, heavy metal analysis, and microbiological specifications (TPC, Yeast & Mold, E. coli, Salmonella).
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Batch Consistency: All production across our ISO 9001 (Quality Management) and GMP-certified facilities ensures batch-to-batch uniformity for global customers.
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Regulatory Preparedness
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Global Dossiers: We provide comprehensive Technical Data Sheets (TDS), Material Safety Data Sheets (MSDS), Allergen Statements, and Kosher/Halal certifications upon request.
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Supplement Compliance: Full documentation available to support dietary supplement registrations under FDA DSHEA guidelines, EU Food Supplements Directive, and other international frameworks.
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Ethical & Safety Certifications
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Vegan Society Verified: Production process uses no animal-derived inputs. Suitable for vegan and vegetarian formulations.
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Allergen-Free: Validated free from gluten, soy, dairy, egg, peanuts, and crustaceans (ELISA tested).
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Non-GMO & BSE/TSE Free: Certified free from GMO materials and Transmissible Spongiform Encephalopathy risks.
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Competitive Breakdown: SRBio vs. Market Alternatives
Common Deficiencies in Standard Acetyl-L-Carnitine:
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Residual L-Carnitine: Incomplete acetylation can leave significant residual L-carnitine, reducing the specific cognitive benefits associated with ALCAR.
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Hydrolysis & Odor: Exposure to moisture can hydrolyze ALCAR back to L-carnitine and acetic acid, potentially causing a vinegar-like odor in the final product.
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Chiral Impurities: Racemization during synthesis can produce the biologically inactive D-isomer, reducing overall efficacy.
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Poor Flow Properties: Standard material can be cohesive or sticky, causing issues in high-speed capsule filling or tablet compression.
SRBio’s High-Purity Advantage:
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Minimal Residual L-Carnitine (<0.5%): Our optimized acetylation and purification process ensures maximum conversion, guaranteeing the potency of the acetylated form.
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Superior Stability & Odor Control: Advanced drying and packaging technologies prevent hydrolysis, ensuring a stable, odorless product throughout its shelf life.
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Chirally Pure (>99.5% L-Form): Guaranteed enantiomeric purity ensures you deliver the full, intended biological activity to your customers.
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Engineered Flowability: Consistent particle size distribution (D50 ~150-250 μm) ensures smooth, high-speed manufacturing with minimal waste.
Technical Partnership Program for Brands
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Co-Development Services
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Formulation Stability Testing: ICH-compliant stability studies for your specific finished product (e.g., ALCAR + Alpha-Lipoic Acid capsules). We assess potency retention and degradation products over time.
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Custom Particle Engineering: Micronization or granulation services to meet specific requirements for blends, stick packs, or controlled-release formulations.
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Market-Ready Solutions
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Custom Pre-Blends:
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Neuro-Energy™ Matrix: ALCAR + CoQ10 + B-Complex Vitamins (for comprehensive cellular and cognitive energy).
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Mitochondrial Renew™: ALCAR + Alpha-Lipoic Acid + PQQ (targeted support for mitochondrial biogenesis and function).
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Turnkey Sampling: Receive 1kg/5kg trial samples with full COA and MSDS for R&D and stability validation, typically shipped within 48-72 hours.
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Video & Articles
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.
