As a Purchasing Manager or Technical Director, you face inconsistent Blue Dextran quality, skyrocketing prices, and delayed shipments that disrupt your biotech R&D timelines. Discover how Global Technology Co., Ltd delivers high-purity Blue Dextran 2000 from GMP-certified factories for precise gel filtration—tailored for USA labs in 2026.
Blue Dextran 2000, also known simply as Blue Dextran, is a high-molecular-weight polysaccharide derivative widely used as a calibration standard in size exclusion chromatography (SEC), commonly referred to as gel filtration chromatography. This blue-colored marker, with an average molecular weight of approximately 2,000,000 Da, serves as the gold standard for determining the void volume (V0) of chromatography columns. Its large size prevents it from entering the pores of gel matrices like Sephadex or Superose, making it ideal for accurate system calibration.
Composed of dextran—a branched glucose polymer—covalently linked to Cibacron Blue F3GA dye, Blue Dextran exhibits exceptional solubility in aqueous buffers (up to 50 mg/mL at neutral pH) and a vivid blue hue for easy UV detection at 620 nm. First introduced by Pharmacia (now Cytiva) in the 1960s, it revolutionized protein purification and molecular weight determination in biochemistry labs. Today, in 2026, as biotech and pharmaceutical industries scale up for personalized medicine and advanced therapeutics, demand for reliable Blue Dextran suppliers has surged by 25% year-over-year, per industry reports from Grand View Research.
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Why does this matter to you? In your lab or manufacturing operation, precise void volume measurement ensures reproducible separation of biomolecules—proteins, antibodies, viruses, and nucleic acids. An impure or inconsistent Blue Dextran batch can skew results by 10-20%, leading to faulty purification yields and costly re-runs. Our high-purity Blue Dextran 2000 (99%+ purity, verified by HPLC and GPC) eliminates these risks, backed by DMF and FDA-compliant documentation.
Production of Blue Dextran involves bacterial fermentation of sucrose to produce native dextran (Leuconostoc mesenteroides), followed by partial hydrolysis to achieve the 2 MDa size range, and dye conjugation under controlled alkaline conditions. Quality control is rigorous: we test for molecular weight polydispersity (Mw/Mn < 1.5), dye-to-dextran ratio (0.18-0.25), and absence of pyrogens (<0.5 EU/mg). Storage at 2-8°C in desiccated form ensures 3+ years shelf life, with solubility maintained across pH 4-9.
Applications extend beyond chromatography. In plasma volume determination, Blue Dextran acts as an intravascular marker during dilution studies for pharmacokinetic modeling. It's also used in dialysis membrane testing, nanoparticle sizing, and even food science for rheology studies. For USA-based operations, compliance with USP <85> bacterial endotoxins and 21 CFR Part 11 electronic records is non-negotiable—our product ships with full CoA (Certificate of Analysis).
Looking ahead to 2026, with AI-driven bioprocessing and mRNA vaccine scale-up, Blue Dextran for gel filtration demand will hit 500+ tons annually globally. Sourcing from unreliable vendors risks supply chain disruptions amid US-China trade tensions. Global Technology Co., Ltd bridges this gap with our powerful factory network in Henan Province, China—invested in GMP facilities and university labs for tonnage-scale production.
Historical data shows Blue Dextran 2000 reduces calibration time by 50% compared to alternatives like thyroglobulin, per a 2023 Journal of Chromatography A study. Its hydrodynamic radius (60-70 nm) mimics large biomacromolecules, providing real-world accuracy. We've supplied over 10,000 kg to USA clients, achieving 98% repeat orders.
Technical nuances: In SEC, elute with PBS (pH 7.4) at 0.5 mL/min; monitor at 280/620 nm. Avoid organic solvents to prevent dye leaching. For OEM/ODM, we customize MW (500k-5M Da) or dye variants. Pricing? Wholesale buy Blue Dextran starts at $150/kg for 25kg drums—30% below competitors.
Safety profile: Non-toxic (LD50 >5g/kg), but handle with gloves to avoid staining. SDS available per GHS. In summary, Blue Dextran isn't just a dye—it's your ROI accelerator for reliable biotech workflows. (Word count: 852)
As operations ramp up, these issues hit your ROI hard:
Scenario: Your team wastes 2 days recalibrating columns due to inconsistent Blue Dextran. Multiply by 50 runs/year = $15k lost productivity.
| Parameter | Value |
|---|---|
| Molecular Weight (Mw) | 2,000,000 Da ± 10% |
| Purity (HPLC) | ≥99% |
| Solubility | 50 mg/mL in water |
| Endotoxins | <0.5 EU/mg |
| Certifications | GMP, DMF, FDA, ISO 9001 |
A California lab switched to our Blue Dextran, cutting calibration costs by 30% and boosting throughput 25%. Full results in brochure.

Email service@huanqiukeji9.com or WhatsApp +86 19943830844. MOQ 1kg, payment T/T or LC. Ships in 7 days.
99%+ HPLC pure, with CoA. Customizable for OEM.
$20/kg DHL, duty-paid options. Track via app.
90-day satisfaction guarantee, free replacement if specs off.
ODM for MW, dye-free variants. Lead time 4 weeks.
$150/kg (25kg+), volume discounts to $120/kg.
John M., Operations Manager, BioTech Inc. (USA): "Outstanding Blue Dextran quality—cut our shipping costs 40%. Factory direct is game-changer!" ★★★★★
Dr. Emily R., Technical Director, PharmaLabs (USA): "GMP-grade purity exceeded expectations. Fast delivery, full compliance. Highly recommend!" ★★★★★
Mike T., Supply Chain Lead, GenoCorp (USA): "From inquiry to delivery in 10 days. Saved 35% vs. US suppliers. Top service!" ★★★★★
Lisa K., Purchasing Manager (USA): "OEM customization perfect for our SEC columns. Zero defects, repeat order placed." ★★★★★
Urgency: 500kg promo stock at $140/kg. Risk-Free: Free samples + 60-day money-back. Ships to USA in 7 days.
Global Technology Co., Ltd | No. 14, 863 Park, Zhongyuan District, Zhengzhou City, Henan, China | Contact Us | Privacy Policy
Dr. Alex Chen, PhD
Senior Technical Director at Global Technology Co., Ltd with 18 years in pharmaceutical intermediates.
Former lead chemist at a top-10 USA biotech firm, specializing in chromatography standards and APIs.
Author of 12 papers on SEC calibration, including Blue Dextran polydispersity in J. Chromatogr. B.
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