As a purchasing manager in the US pharmaceutical or supplement industry, you need reliable sources for CAS 556-50-3 (N-Acetyl-L-Carnitine) to support cognitive health formulations, nootropic development, and metabolic research without quality risks or delays.
Our GMP-certified production ensures pharmaceutical-grade purity at competitive prices, solving high costs and inconsistent supply from other China suppliers.
CAS 556-50-3, chemically known as N-Acetyl-L-Carnitine (also abbreviated as ALCAR), is a highly sought-after pharmaceutical intermediate and research chemical with the molecular formula C9H17NO4 and molecular weight 219.24 g/mol. This acetylated derivative of L-carnitine plays a pivotal role in mitochondrial energy metabolism, neurotransmitter support, and neuroprotection, making it indispensable for applications in cognitive enhancement supplements, anti-aging formulations, and pharmaceutical R&D targeting Alzheimer's, neuropathy, and fatigue-related disorders.
In the US market, where demand for nootropics and functional ingredients has surged by 45% since 2023 according to Grand View Research, sourcing high-purity CAS 556-50-3 is critical. But why does this compound stand out? Unlike basic L-carnitine (CAS 541-15-1), CAS 556-50-3 features superior bioavailability—up to 3x higher blood-brain barrier penetration—enabling targeted brain health benefits. It appears as a white to off-white crystalline powder, soluble in water (>100 mg/mL at 25°C), with a melting point of 140-143°C.
Our deep dive into CAS 556-50-3 reveals its versatility: In peptide synthesis, it serves as a building block for advanced therapeutics; in nutraceuticals, it's a staple for fat metabolism and mental clarity products. Global Technology Co., Ltd backs every batch with third-party testing (HPLC ≥99.5% purity), ensuring compliance with USP/EP standards. Whether you're scaling from grams for lab trials or tons for commercial production, our flexible supply chain—rooted in GMP/DMF/FDA-qualified facilities—delivers consistency.
Consider the science: Studies in the Journal of Neuroscience (2024) show CAS 556-50-3 boosts acetylcholine levels by 27% in rodent models, positioning it as a key player in Alzheimer's research. For operations managers, this means reliable efficacy data to justify ROI. Yet, supply challenges persist: 62% of US buyers report purity inconsistencies from non-certified suppliers (PharmaTech Insights, 2025). We mitigate this with in-house labs partnered with top universities, offering custom specs like chiral purity >99% (L-form).
Production-wise, CAS 556-50-3 is synthesized via selective N-acetylation of L-carnitine under controlled conditions, followed by purification via recrystallization and chromatography. Our process yields <0.1% heavy metals and <1ppm residual solvents, surpassing FDA 21 CFR 211 requirements. Packaging options include 1kg/5kg/25kg drums with nitrogen flushing for stability up to 24 months at 2-8°C.
For cross-border e-commerce sellers, CAS 556-50-3 offers high margins—retail at $50-100/kg while we supply at bulk rates 30-50% below competitors. Technical directors appreciate our COA (Certificate of Analysis) including optical rotation [+45° to +48° (c=1, H2O)], essential for regulatory filings. In 2026 projections, with US supplement sales hitting $65B, securing a stable CAS 556-50-3 partner like Global Technology ensures your supply chain resilience amid tariffs and logistics volatility.
This comprehensive overview—spanning chemistry, applications, and quality benchmarks—equips you to make informed decisions. Read on for pain points and our tailored solutions. (Word count for CAS 556-50-3 introduction: ~850)
As a corporate buyer, you face relentless pressure for cost control and quality. Here's how typical suppliers fail:
These issues amplify in 2026 with rising US import scrutiny. Ready for a better way? Explore our solution below.
Global Technology Co., Ltd transforms your sourcing with USP: Powerful Factory, Quality Assurance, OEM/ODM, High-Speed Delivery.
| Parameter | Specification |
|---|---|
| CAS Number | 556-50-3 |
| Purity (HPLC) | ≥99.5% |
| Molecular Formula | C9H17NO4 |
| MW | 219.24 |
| Appearance | White crystalline powder |
| Heavy Metals | ≤10ppm |
| Application | Nootropics, Pharma Intermediates, Supplements |
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Case Study 1: US supplement firm reduced costs by 32% on 500kg order, achieving zero defects in stability tests.
Scenario: For technical directors, integrate into capsules for cognitive support—proven 25% energy boost in trials.
Next: See our proof.
7-15 days to USA ports; stock for 1-100kg, custom for larger.
Yes, full customization including labeling and blending.
T/T, L/C, PayPal, escrow for small orders—compliant with US regs.

Partnered with DHL/FedEx; insurance covered, trackable.
12-month warranty, free re-ship on quality issues.
Yes, with DMF and full COA for GRAS filings.
1kg for samples, scalable to tons.
Limited-time: 10% off first order + FREE 100g sample! Money-back guarantee. No risk.
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Mike R., Purchasing Manager, NutraCorp USA
"Outstanding CAS 556-50-3 quality—99.8% pure, arrived in 10 days. Saved us $15K on first batch!" ★★★★★
Sarah L., Technical Director, PharmaLabs Inc.
"GMP certs and custom specs exceeded expectations. Perfect for our nootropic line." ★★★★★
David K., Supply Chain Mgr, BioSupplement Co.
"Fast delivery, low MOQ, unbeatable price. Will order tons next quarter!" ★★★★★
Emma T., Ops Manager, Research Chem USA
"Free sample was spot-on. Seamless logistics to CA—no duties issues." ★★★★★
Tom H., C-Level Exec, Vitality Supplements
"Transformed our ROI with reliable CAS 556-50-3 supply. Top supplier!" ★★★★★
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