Polymethoxyflavone
Active ingredient: Nobiletin
CAS No: 478-01-3
Specification: 98% HPLC
Grade: Food grade
Appearance: White to light cream powder
Package specification: 25kg/drum
Mode of transportation: Courier service, air shipment, sea shipment
Delivery: Products are maintained in stock for fast dispatch. Small purchases are delivered by FedEx, while larger orders are arranged via air or ocean shipping.
OEM/ODM: Available
Minimum order quantity: 1kg, free samples available
- Free Samples
- Quality Assurance
- 24/7 Customer Service
Product Introduction
Premium Polymethoxyflavone Supplier | High-Purity Citrus Extract from Kang Biotech
For 11 years, Kang Biotech has produced Polymethoxyflavone from citrus. Our Hunan Province, China, location boasts 33,000 m² of modern production space and 20,000,000+ m² of regulated citrus trees. Pure Nobiletin (up to 98% HPLC) with batch-to-batch consistency is extracted using proprietary water and ethanol methods.
ISO 9001, ISO 22000, HACCP, Halal, Kosher, and FAMI-QS certified. Fast shipping to 40+ countries with 9 contemporary production lines and ready stock.

What Is Polymethoxyflavone?
Citrus sinensis and Citrus reticulata peels provide bioactive flavonoids in our products. The methoxy groups on the flavone backbone make these molecules more lipophilic and metabolically stable than typical hydroxylated flavonoids.
The unusual molecular structure enhances membrane permeability and enzymatic resistance. Lipid solubility enables blood-brain barrier crossing, exceeding botanical extract limitations.
Commercial formulations seeking higher bioavailability and plasma concentration use our product. In metabolic and cognitive wellness products, Nobiletin and Tangeretin are the most important molecules.
Technical Specifications & Parameters
Our product is manufactured to precise specifications that meet both research and commercial production requirements:
| Parameter | Specification |
|---|---|
| Botanical Source | Citrus sinensis L. |
| Active Ingredient | Nobiletin |
| CAS Number | 478-01-3 |
| Molecular Formula | C₂₈H₃₄O₁₅ |
| EINECS Number | 236-216-14 |
| Purity Range | 10%-98% HPLC |
| Appearance | White to light cream powder |
| Grade | Food grade |
| Extraction Method | Water extraction / Ethanol extraction |
| Shelf Life | 24-36 months (proper storage) |
| Package Size | 25kg/drum (custom available) |
| MOQ | 1kg (free samples provided) |
Core Applications of Polymethoxyflavone
B2B Metabolic Health Ingredients
Our pure extract stimulates AMPK and promotes lipid management formulas. The molecule survives complicated multi-ingredient combinations when other polyphenols breakdown. Your product makers may securely use it into metabolic health dietary supplements.
Neuroprotective and Cognitive Support Formulas
Our product is good for nootropics since it crosses the blood-brain barrier. Cognitive enhancement pills contain it to modify synaptic plasticity and improve neurological health.
Cosmetic Uses
Topical matrix metalloproteinase and tyrosinase inhibition are achieved by our extract. This makes it useful for anti-aging and dermatological goods since it protects and brightens skin more than ordinary citrus extracts.
Foods and drinks that work
Heat-processed items can use its thermal stability. Wellness-focused food innovations that require bioactive ingredients that preserve potency during manufacture can use it.
Quality Control & Testing Standards
We ensure your formulations fulfill worldwide regulatory standards with rigorous quality assurance protocols:
HPLC Purity Check
HPLC-DAD analysis verifies Nobiletin and Tangeretin concentrations in each batch. This assures real Polymethoxyflavone with proven purity and avoids adulteration with lower-grade extracts.
Pesticide Residue Testing
GC-MS/MS testing shows conformity with international standards, especially for citrus organochlorines. End customers in controlled marketplaces are safe with your products.
Analysis of Heavy Metals
ICP-MS testing indicates Lead, Arsenic, Cadmium, and Mercury levels satisfy USP <2232> standards. Your brand reputation and regulatory approval in Europe, North America, and Asia-Pacific are protected.
Residual Solvent Testing
We ensure Class 2 and Class 3 solvents meet ICH Q3C restrictions. This ensures your products satisfy pharmaceutical-grade requirements when needed.
Plant fingerprinting
DNA barcoding and HPTLC verify citrus provenance, removing supply chain concerns regarding synthetic analogs or unrelated species.

Manufacturing Advantages & Customization
Integrated Supply Chain Control
We provide supply reliability through vertical integration from citrus agriculture to final manufacture. You get constant quality and price without market volatility effects on spot purchases.
Advanced Extraction Methods
We optimise extraction efficiency with the Hunan Institute of Agricultural Product Processing and Quality Safety. For procurement, this means increased yields, purity, and competitive price.
Flexible OEM/ODM Services
We tailor specs, packaging, and labeling to your market. Our technical staff helps you design products with precise purity standards, active compound ratios, or branded packaging.
Small to Bulk Orders
From 1kg with free samples, we accommodate R&D experiments to commercial manufacturing. FedEx handles minor packages, whereas air and sea freight effectively handle large orders.

FAQ
Q: What makes the product more bioactive than Hesperidin?
A: Methoxylation enhances lipophilicity, improving intestinal absorption and cell membrane penetration over glycosylated Hesperidin. Higher bioavailability at lower dosages.
Q: How can you help liquid formulations with low water solubility?
A: For stable dispersions, use micro-encapsulation, liposomal delivery, or food-grade surfactants. Our technical staff can help you formulate without compromising chemical integrity.
Q: Does the product interact with CYP450 enzymes?
A: The liver metabolizes it with affinity for CYP1A and CYP1B, however clinical evidence reveals no interaction at conventional dietary supplement doses. Our material supports safety assessments for high-dose therapeutic applications.
Q: How long does high-purity powder last?
A: Our product stays >98% potent for 24-36 months in cold, dry, UV-free environments. Every package includes storage instructions.
Q: Can you confirm plant provenance after extraction?
A: Yes. The citrus variety utilized is confirmed by HPLC fingerprinting and ratio measurement of Nobiletin to Tangeretin. This traceability aids supply chain transparency.
Contact Us
Ready to enhance your formulations with Polymethoxyflavone? Contact our technical sales team at sales02@kangbiotech.com for samples, specifications, and customized solutions today.
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