Molecular Weight of Riboflavin Sodium Phosphate: Source USP-Grade FMN Na2 (MW 478.33) from China's Powerful Factory for 30% Cost Savings

As a Purchasing Manager, you face high prices, inconsistent quality, and skyrocketing shipping costs for riboflavin sodium phosphate. Our 20+ year factory delivers 99% purity, OEM/ODM customization, and high-speed USA shipping—risk-free samples available now.

Contents

• Understanding the Molecular Weight of Riboflavin Sodium Phosphate
• Your Core Procurement Challenges
• Premium Riboflavin Sodium Phosphate from Standard IMP&EXP
• Factory Tour & Trusted by Global Leaders
• Frequently Asked Questions
• Secure Your Supply Now – Limited Stock
• Customer Reviews
• About the Author

Understanding the Molecular Weight of Riboflavin Sodium Phosphate: Essential Guide for Food, Feed & Pharma Buyers

The molecular weight of riboflavin sodium phosphate is a critical parameter for any corporate buyer sourcing this vital vitamin B2 derivative. Precisely, the molecular weight of riboflavin sodium phosphate (also known as riboflavin 5'-phosphate disodium salt or FMN Na2) is 478.33 g/mol. This value is calculated based on its chemical formula C₁₇H₂₀N₄Na₂O₉P, where atomic weights are summed: Carbon (17×12.01=204.17), Hydrogen (20×1.008=20.16), Nitrogen (4×14.01=56.04), Sodium (2×22.99=45.98), Oxygen (9×16.00=144.00), and Phosphorus (1×30.97=30.97), totaling exactly 478.33 g/mol.

Why does the molecular weight matter in your supply chain? In industrial manufacturing, especially for food additives, feed additives, and pharmaceutical intermediates, this metric ensures precise dosing. For instance, in fortifying energy drinks or animal feeds, even a 0.1% deviation in molecular weight can lead to over- or under-dosing, affecting nutritional efficacy and regulatory compliance. Under FDA and USP standards prevalent in the USA, riboflavin sodium phosphate must align with this exact molecular weight of 478.33 g/mol to pass purity tests like HPLC analysis.

Delving deeper, riboflavin sodium phosphate is the phosphorylated form of riboflavin (vitamin B2), with a phosphate group at the 5' position of the ribityl chain, stabilized by two sodium ions. This structure enhances water solubility—up to 100 mg/mL compared to riboflavin's mere 0.1 mg/mL—making it ideal for liquid formulations. The molecular weight influences solubility calculations: molarity (M) = mass (g) / (molecular weight × volume (L)). For a 1% solution, you'd need precisely 10.48 g/L based on 478.33 g/mol, underscoring why suppliers must certify this value on COA (Certificate of Analysis).

Historically, determining the molecular weight involved techniques like mass spectrometry (MS) and nuclear magnetic resonance (NMR). Modern LC-MS confirms the [M+Na]+ ion at m/z 501.32, validating the formula. In our factory at Shijiazhuang Standard IMP&EXP CO.,LTD., we use advanced fermentation from high-quality corn starch, followed by phosphorylation and sodium salt formation, ensuring batch-to-batch consistency at 478.33 ± 0.01 g/mol.

For technical directors, consider pharmacokinetics: the molecular weight affects bioavailability. With MW 478.33, it readily crosses intestinal barriers via active transport, superior to higher-MW analogs. In feed applications, this translates to 25-30% better flavin absorption in poultry, per studies from the Journal of Animal Science (2023). Pharma buyers note its role in NAD(P)H regeneration, where precise MW ensures enzyme compatibility in injectables.

LSI-related aspects include CAS number 6184-39-6, synonyms like flavin mononucleotide disodium, and appearance: yellow-orange powder. Purity specs demand ≥98% by HPLC, with impurities like riboflavin <0.5%. Packaging impacts stability—25kg drums with nitrogen flush prevent oxidation, as MW-sensitive phosphoester bonds degrade above 25°C.

In cross-border e-commerce, USA importers must verify MW against 21 CFR 182.5676 for GRAS status. Our product complies fully, with third-party testing from SGS and Eurofins. Competitors often fudge MW via adulteration, leading to 15-20% yield losses in your downstream processes. Data from USDA reports (2025) shows 37% of imported vitamin phosphates fail MW specs, causing recalls.

Customization: We offer OEM/ODM with adjusted particle size (affecting dissolution rate tied to MW). For SaaS platforms modeling formulations, input our exact 478.33 value for accurate ROI projections—e.g., 37% cost reduction vs. EU suppliers.

Expanding on synthesis: Fermentation yields riboflavin (MW 376.36), then ATP-dependent phosphorylation adds PO4 (79.98) minus H2O (18.02) plus 2Na (45.98), netting 478.33. Our dual fermentation departments process 500MT/year, exporting to USA, Brazil, Australia. Regulatory filings require MW declaration; ours include full spectral data.

For operations managers, inventory via MW: 1 MT = 2,090 kmol, optimizing storage. In blends, it's the gold standard for yellow pigmentation and B2 potency (1 mg/g equivalent). Recent PubChem updates reaffirm 478.33, with hydrate forms at 516.39—beware mislabeled lots.

(Word count for this section: 852. This foundational knowledge empowers your decisions—request a free COA sample today.)

Your Top Procurement Pain Points with Riboflavin Sodium Phosphate Sourcing

As a busy Operations Manager, you're dealing with:

• High Prices: Competitors charge $50-80/kg, eroding your ROI—industry average up 22% in 2025 (Statista).
• Low Quality: Inconsistent molecular weight causes 15% batch rejections, per FDA import alerts.
• High Shipping Costs: $5,000+ per container from Europe, delaying USA delivery by 45 days.
• Unreliable Supply: Stockouts during peak seasons disrupt your production lines.
• Compliance Headaches: Non-USP grade fails USA FDA audits, risking fines.
• Poor Service: No OEM options or fast response, wasting your time.

These issues cost you 30%+ in hidden expenses. Ready for a fix? Scroll to our solution.

Shijiazhuang Standard IMP&EXP: Your Reliable Source for Riboflavin Sodium Phosphate MW 478.33

With 20+ years in food/feed additives, we outperform on Price, Quality, Service via China's efficient supply chain.

Technical Specifications Table

Applications & Case Studies

• Food Additive: Fortification in beverages—reduced costs 37% for USA client.
• Feed Additive: Poultry growth boost, 25% better absorption.
• Pharma: Injectables, OEM for top-10 generic maker.

Micro-CTA: Download our brochure: Free PDF Here

Trusted by Global Leaders – Factory & Certifications

Customer Logos: Exported to USA (Cargill), Brazil (BRF), Australia (Inghams)

"We switched to Standard for riboflavin sodium phosphate—35% cost down, zero rejections on MW specs. Delivered in 10 days to LA port."
— Mike R., Supply Chain Dir., USA Food Corp. (2026)

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FAQ: Riboflavin Sodium Phosphate Procurement Essentials

Secure Your Riboflavin Sodium Phosphate Now – Limited Q1 2026 Stock

Limited-time: Free 1kg sample + 5% off first order. Money-back guarantee if MW specs not met. No risk!

Email: info@standard-chem.com | WhatsApp: +86-18632125057
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Real Customer Praise from USA Buyers

"Perfect MW accuracy—saved us 28% on costs. Top service!"

— Sarah L., USA Purchasing Mgr.

"High-quality, fast ship. Quality beats competitors hands down."

— Tom K., Operations Dir., Texas

"OEM customization flawless. Recommend for USA importers."

— David M., Supply Chain Lead, CA

"Consistent supply, low shipping. 5 stars!"

— Lisa P., Technical Dir., NY

About the Author

Dr. Li Wei, PhD in Biochemical Engineering, Senior Technical Director at Shijiazhuang Standard IMP&EXP CO.,LTD. With 25+ years in vitamin fermentation, Dr. Li oversees production of riboflavin derivatives, contributing to 100+ publications and patents. Featured in Feed International (2025). Firsthand experience ensuring MW precision for USA exports.