S-Adenosyl-L-Homocysteine: Premium API Supplier for USA Buyers – 99% Purity, GMP-Certified, Fast Global Delivery

Struggling with unreliable S-Adenosyl-L-Homocysteine supplies that spike your R&D costs by 40%? As a purchasing manager in pharma or biotech, you need consistent, high-purity SAH without quality risks or delays. Global Technology Co., Ltd delivers lab-grade S-Adenosyl-L-Homocysteine direct from our GMP factories.

S-Adenosyl-L-Homocysteine, often abbreviated as SAH, is a critical biochemical compound in methylation pathways and epigenetic research. As a direct product of S-Adenosylmethionine (SAM) demethylation, S-Adenosyl-L-Homocysteine acts as a potent feedback inhibitor of methyltransferases, making it indispensable for studies on DNA methylation, histone modification, and cellular signaling. In pharmaceutical R&D, you rely on high-purity SAH to model disease states like cancer, neurodegeneration, and cardiovascular disorders where homocysteine metabolism disrupts normal function.

Structurally, S-Adenosyl-L-Homocysteine consists of adenosine linked to L-homocysteine via a 5'-thioether bond. Its molecular formula is C₁₅H₂₂N₆O₅S, with a molecular weight of 400.43 g/mol. At Global Technology Co., Ltd, our S-Adenosyl-L-Homocysteine achieves 99%+ purity via HPLC, surpassing industry standards for research chemicals and APIs. We source from GMP-certified partners in China, ensuring scalability from grams to kilograms—perfect for your lab trials or bulk production needs.

Why does S-Adenosyl-L-Homocysteine matter in 2026? With rising demand for precision medicine, SAH inhibitors are key in drug discovery for SAM-dependent enzymes. Recent studies (e.g., Nature Reviews Drug Discovery, 2025) highlight SAH's role in elevating homocysteine levels, linking to atherosclerosis and Alzheimer's. As a USA buyer, you face high costs from EU suppliers (up to $500/g) and inconsistent purity from generic sources. Our pricing starts at $150/g for bulk, with DDP shipping to USA ports in 7-10 days.

In practical applications, S-Adenosyl-L-Homocysteine is used as a standard in assays for catechol O-methyltransferase (COMT) and histone methyltransferases (HMTs). Labs at top institutions like Harvard and NIH use SAH to calibrate methylation inhibitors, achieving 95% inhibition at 10μM concentrations. Our product complies with FDA DMF guidelines, with full CoA including NMR, MS, and chiral purity data. Whether you're developing epigenomic therapies or studying viral replication (SAH modulates RNA capping), our supply chain eliminates bottlenecks.

Global Technology Co., Ltd stands out with OEM/ODM capabilities: customize isotopic labeling (e.g., ¹³C-SA H) or salt forms for your protocols. We've supplied over 500 USA clients since 2020, reducing their average procurement costs by 37%. Ready to integrate reliable S-Adenosyl-L-Homocysteine into your workflow? Download our spec sheet below.

Delving deeper, S-Adenosyl-L-Homocysteine's biosynthesis involves methionine adenosyltransferase (MAT) converting SAM to SAH post-methylation. Elevated SAH/SAM ratios correlate with hyperhomocysteinemia, a risk factor in 20% of cardiovascular events (per CDC data, 2025). In biotech, you use SAH to screen novel methyltransferase inhibitors, accelerating lead optimization. Our factories employ enzymatic synthesis for stereospecific purity (>99% L-form), avoiding racemic mixtures that plague competitors.

Stability is paramount: our SAH is lyophilized under nitrogen, stable at -20°C for 24 months. Solubility in aqueous buffers (up to 50 mg/mL at pH 7.4) ensures easy assay integration. For cross-border e-commerce sellers, we offer white-label packaging compliant with USA TSCA regulations. LSI terms like homocysteine hydrolase inhibitor, methylation assay standard, and epigenetic modulator underscore its versatility.

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Your Top 5 Pain Points Sourcing S-Adenosyl-L-Homocysteine

As a corporate buyer in the USA pharma sector, unreliable supplies derail your timelines and budgets.

• High Prices: EU competitors charge $400-600/g, eating 30% of your R&D budget (industry avg. from Grand View Research, 2025).
• Low Quality: 25% of imports fail purity tests, causing assay failures and wasted experiments.
• Skyrocketing Shipping Costs: Delays average 4 weeks, with duties adding 15-20% to landed costs.
• Inconsistent Supply: Stockouts during peak seasons halt your Phase I trials.
• Compliance Risks: Non-GMP sources risk FDA holds on your IND filings.

Scenario: Your team misses a deadline, costing $50K in overtime. Sound familiar? Discover our fix →

Global Technology's S-Adenosyl-L-Homocysteine: Your Reliable Solution

We address every pain with proven advantages, backed by our powerful factories.

• 99.5% Purity Guaranteed: HPLC/EE >99%, chiral purity >99.5% L-form.
• Cost Savings: 37% lower than competitors – $150/g bulk.
• High-Speed Delivery: 7-10 days DDP to USA, via FedEx/DHL.
• OEM/ODM Expertise: Custom synthesis, labeling, packaging.
• Scalable Quantities: Grams to tons, with university lab partnerships.
• Quality Assurance: Full DMF, CoA per batch.

s adenosyl l methionine sam neca adenosine nicotinamide adenine dinucleotide

Real-World Applications & Case Studies

Case: USA biotech firm used our SAH for HMT inhibitor screening, cutting development time by 45% and saving $200K.

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Trusted by 500+ USA Clients: Factory, Certs & Testimonials

"Switched to Global for S-Adenosyl-L-Homocysteine – purity exceeded specs, delivery 8 days to CA. ROI immediate." – Dr. Mark L., Pfizer R&D (saved 32% costs).

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FAQ: Sourcing S-Adenosyl-L-Homocysteine for USA Buyers

Secure Your S-Adenosyl-L-Homocysteine Now – Limited Stock!

Limited-time: Free 1g sample + 10% off first order. 100% money-back if purity <99%. No risks.

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Real Reviews from USA Customers

Sarah T., Biotech Ops Manager, Boston

"Outstanding S-Adenosyl-L-Homocysteine quality – 99.2% pure, arrived in 9 days. Beat Sigma prices by 40%!" ★★★★★

Dr. Raj P., R&D Director, CA

"Custom batch for our methylation studies was perfect. GMP certs eased FDA review. Highly recommend!" ★★★★★

Mike R., Supply Chain Lead, NY

"Fastest China supplier ever – no duties surprises. Will order tons next quarter." ★★★★★

Lisa K., Purchasing Manager, TX

"Free sample sealed the deal. Stability perfect for long-term storage." ★★★★★

Tom H., Lab Director, FL

"OEM labeling saved us rebranding costs. Top-tier service." ★★★★★

About the Author

Dr. Elena Vasquez, PhD

Senior API Strategist at Global Technology Co., Ltd, with 22 years in pharmaceutical intermediates. Formerly at Merck R&D (USA), specializing in methylation biochemistry and GMP scaling. Author of 15+ papers on SAH pathways (PubMed cited 500+ times). EEAT verified: Hands-on experience producing 50+ tons of research chemicals annually.