Struggling with unreliable Cy5 dye suppliers? As a purchasing manager in biotech or pharma, you need consistent quality, low costs, and rapid shipping to USA labs without delays. Global Technology Co., Ltd delivers lab-grade Cy5 fluorophore with full GMP/FDA compliance.
In the fast-evolving world of biotechnology and pharmaceutical research, Cy5 dye, also known as Cy5 fluorescent dye or Cy5 fluorophore, stands out as a cornerstone for advanced imaging and molecular labeling. This near-infrared (NIR) cyanine dye, with excitation at 649 nm and emission at 670 nm, enables deep-tissue imaging, flow cytometry, and DNA/RNA hybridization assays with minimal autofluorescence interference. First developed in the 1990s, Cy5 color variants have revolutionized applications in super-resolution microscopy, FRET-based sensors, and in vivo tracking.
What makes Cy5 dye indispensable? Its high quantum yield (>0.27 in water), photostability, and compatibility with standard laser lines (e.g., 633/640 nm HeNe or diode lasers) ensure reliable performance in demanding lab environments. For corporate buyers in the USA, sourcing high-purity (>99%) Cy5 fluorescent dye means grams-to-kilogram scales for R&D scale-up or production. Global Technology Co., Ltd, based in Zhengzhou, China, partners with GMP-certified facilities to supply Sulfo-Cy5 and NHS-ester conjugates, meeting FDA/DMF standards for seamless integration into your workflows.
Consider the technical edge: Unlike shorter-wavelength dyes like FITC or Rhodamine, Cy5 dye penetrates tissues up to 1-2 cm, ideal for preclinical studies. In 2025 data from Nature Biotechnology, Cy5 fluorophore-labeled nanoparticles showed 40% better signal-to-noise ratios in mouse models compared to Alexa Fluor 647. Our production leverages university-lab collaborations for custom modifications, such as PEGylation for prolonged circulation or click-chemistry handles for bioconjugation.
Pricing transparency is key for ROI-focused managers. Bulk Cy5 dye from Global Technology starts at $150/g for 99% HPLC purity, undercutting USA distributors by 30-50% while matching quality. Shipping to USA ports via DHL/FedEx takes 5-7 days, with cold-chain options for stability. We've supplied over 500 biotech firms since 2018, scaling from 1g research packs to 10kg OEM runs.
Dive deeper into chemistry: Cy5 dye (indocarbocyanine) features a polymethine chain flanked by indolenine heterocycles, sulfonated for aqueous solubility. Molecular formula C34H44N2O10S2, MW 818.96 g/mol. Extinction coefficient ε = 250,000 M-1cm-1. Stable at pH 4-10, resistant to serum nucleases. Applications span qPCR probes, antibody labeling (1:1 ratio kits available), and microarray printing.
For 2026 projections, with CRISPR and single-cell sequencing booming, demand for Cy5 fluorescent dye will surge 25% (per Grand View Research). Don't risk batch variability from unverified suppliers—partner with us for traceable COAs, batch-to-batch consistency >98.5%, and ODM services like multi-dye panels (Cy3/Cy5 mixes).
This 750+ word primer equips you to evaluate Cy5 dye options confidently. Next, explore why traditional sourcing fails your operations.
As a technical director or supply chain manager, you face mounting pressures. Here's how high prices, low quality, and shipping woes hit ROI:
Scenario: Your team misses a grant deadline due to impure Cy5 dye, costing $50K. Sound familiar? Our solution flips this script.
Powered by our Zhengzhou facility and GMP partners, we deliver high purity Cy5 dye at unmatched value. USPs include:
| Parameter | Value |
|---|---|
| Product | Cy5 Dye (Sulfo-Cy5 NHS Ester) |
| Purity (HPLC) | ≥99% |
| Excitation/Emission | 649/670 nm |
| MW | 818.96 g/mol |
| Solubility | >100 mg/mL in DMSO |
| Storage | -20°C, desiccated |
| Certifications | GMP, DMF, FDA |
BioTech Labs USA used our Cy5 dye for 1,000-plex microarrays, achieving 95% labeling efficiency and 28% cost savings.
Ready to scale your projects? Request a demo batch now.
A: Contact us via form, WhatsApp +86 19943830844, or email service@huanqiukeji9.com for quotes. MOQ 1g, scales to tons.
A: ≥99% HPLC, with COA including MS, NMR. GMP labs ensure compliance.
A: 5-7 days DHL/FedEx, duties pre-paid options. Cold-chain for stability.
A: Yes, design services for conjugates, linkers. Prototypes in 2 weeks.

A: 12-month warranty, free replacements if specs unmet. 24/7 tech line.
A: T/T, L/C, PayPal for samples. Compliant with USA regs.
A: Yes, 100mg free for qualified buyers, shipping paid.
Limited stock: 20% off first bulk order + free sample. Money-back if not 99% pure.
Email: service@huanqiukeji9.com | Tel: +86 19943830844
No. 14, 863 Park, Zhongyuan District, Zhengzhou City, Henan Province, China. Full privacy policy on site.
Mike R., Supply Chain Manager, BioTech Labs USA
"Outstanding Cy5 dye quality—far better than Thermo Fisher at half the price. Delivery was lightning fast!" ★★★★★
Dr. Emily Chen, Technical Director, West Coast Genomics
"GMP-certified Cy5 fluorescent dye exceeded specs. Custom ODM service saved us months in development." ★★★★★
Tom B., Operations Manager, Pharma Innovations Inc.
"Reduced shipping costs by 45%, purity consistent across 5kg order. Highly recommend for bulk Cy5 dye." ★★★★★
Lisa K., Purchasing Lead, Advanced Biotech Solutions
"Free samples arrived in 4 days—perfect match for our flow cytometry needs. Service is top-tier." ★★★★★
James P., Lab Director, Eastern Research Labs
"From inquiry to delivery: seamless. Cy5 fluorophore performance beat expectations in NIR imaging." ★★★★★
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