Product Introduction
| Item | Specification |
| Product Name | Kaempferol |
| Synonyms | 3,4′,5,7-Tetrahydroxyflavone; Robigenin; Pelargidenolon; Kaempferol Flavonoid Monomer |
| CAS Number | 520-18-3 |
| Molecular Formula | C₁₅H₁₀O₆ |
| Molecular Weight | 286.24 g/mol |
| Appearance | Bright yellow crystalline fine powder, odorless, uniform crystal texture, no caking, no impurities or discoloration under sealed dry and dark storage |
| Purity (HPLC) | Kaempferol ≥98.0% / ≥99.0% (Research Grade / Premium Functional Grade, customizable) |
| Melting Point | 276–278°C (lit.) |
| Loss on Drying | ≤ 0.2% |
| Residue on Ignition | ≤ 0.1% |
| Testing Method | HPLC / NMR / Mass Spectrometry / IR Spectrum / Biological Activity Assay |
| Production Method | Natural Plant Raw Material Ethanol-Water Extraction + Polyamide Adsorption Separation + Macroporous Resin Purification + Preparative HPLC Refining + Low-Temperature Recrystallization |
| Solubility | Slightly soluble in cold water, soluble in hot water, hot ethanol, methanol and ether; soluble in alkaline solutions; insoluble in petroleum ether; stable in acidic and neutral environments |
| Core Feature | High-purity natural flavonol monomer, stable chemical structure, multi-target antioxidant and anti-inflammatory activity, excellent antibacterial and immunomodulatory properties, high experimental repeatability and formula stability |
| Package | 1g/5g/10g amber sealed bottle, 100g/1kg vacuum drum; moisture-proof & light-proof vacuum packaging, customized specifications supported |
| Storage | Store in vacuum-sealed, low-temperature, dry and dark conditions; avoid high temperature, strong light, humid air and alkaline environment to prevent flavonoid structural decomposition and activity loss |
| Shelf Life | 24 months under standard sealed low-temperature dark storage |
Product Description
Kaempferol is a high-purity natural flavonol monomer widely distributed in various edible plants and medicinal herbs, chemically defined as 3,4′,5,7-Tetrahydroxyflavone. As one of the most functional and extensively studied flavonoid active ingredients, Kaempferol possesses comprehensive biological activities including powerful antioxidant, anti-inflammatory, antibacterial, antiviral and immunomodulatory effects. We supply two premium industrial grades: Research Grade 98% Kaempferol and Premium Functional Grade 99% Kaempferol, produced through standardized plant extraction, polyamide adsorption separation, multi-stage resin impurity removal and preparative HPLC precision recrystallization technology.
Different from ordinary plant crude extracts containing mixed flavonoids, cellulose and pigment impurities, our refined Kaempferol is a single purified monomer with fixed molecular structure and accurate content. The full-process low-temperature light-shielded production system completely removes residual solvents, heavy metals and heterologous impurities, eliminating experimental interference and formula instability issues. Every batch maintains ultra-high purity and stable component activity, ensuring highly repeatable pharmacological experimental data and consistent efficacy of finished health and skincare products.
In antioxidant protection, Kaempferol efficiently scavenges intracellular reactive oxygen species, inhibits lipid peroxidation chain reactions, reduces oxidative damage to cells and tissues, and delays systemic aging accumulation. It exhibits stronger free radical scavenging capacity than many common plant flavonoids, effectively improving body sub-health caused by long-term oxidative stress and environmental damage. In anti-inflammatory regulation, Kaempferol blocks multiple inflammatory signaling pathways, reduces the secretion of pro-inflammatory cytokines, relieves chronic low-grade inflammation, and alleviates inflammatory discomfort of tissues and organs.
Kaempferol also delivers excellent broad-spectrum antibacterial and antiviral properties, inhibiting the activity of various harmful microorganisms and enhancing the body’s external defense capability. For immune regulation, it modulates immune cell proliferation and cytokine balance, improves innate immune activity, and maintains long-term immune homeostasis. In cardiovascular and metabolic protection, high-purity Kaempferol protects vascular endothelial cells, improves microcirculation, assists in regulating lipid metabolism, and stabilizes cardiovascular system health.
In skincare and cosmetic applications, Kaempferol’s powerful antioxidant and anti-inflammatory properties effectively resist UV-induced photoaging, reduce skin dullness, redness and fine lines, soothe sensitive and damaged skin, and improve overall skin texture and elasticity. With mild and non-irritating characteristics and excellent skin permeability, it is widely used in high-end anti-aging, soothing and repairing skincare formulas. In functional food and health product fields, it serves as a natural nutritional additive for daily anti-aging, immune conditioning and sub-health improvement products.
Manufactured in standardized dust-free purification workshops, our Kaempferol strictly controls every production parameter to avoid flavonoid structural damage and activity attenuation. The finished product presents uniform bright yellow crystalline fine powder with delicate crystal texture, no agglomeration and no peculiar smell, fully compliant with USP, EP, food-grade and cosmetic-grade international raw material standards. Every batch undergoes full-index quality inspection including HPLC purity calibration, NMR structural identification, mass spectrometry molecular verification and cell-level activity testing, ensuring excellent batch-to-batch consistency and stable biological efficacy.
Functions & Benefits
Powerful Natural Antioxidant & Anti-Aging
Efficiently scavenges excess free radicals in the body, inhibits lipid peroxidation and cellular oxidative damage, delays tissue and organ aging accumulation, improves skin aging and body sub-health caused by oxidative stress.
Multi-Target Anti-Inflammatory Relief
Blocks core inflammatory signaling pathways, reduces pro-inflammatory factor release, relieves chronic low-grade inflammation in the body, and alleviates inflammatory discomfort and tissue damage.
Broad-Spectrum Antibacterial & Antiviral Activity
Inhibits the activity of various harmful bacteria and viruses, enhances the body’s microbial defense capability, and reduces the risk of external microbial invasion and infection.
Immune Balance & Defense Enhancement
Modulates immune cell proliferation and immune cytokine secretion, corrects immune imbalance, enhances innate immune defense, and maintains long-term systemic immune homeostasis.
Cardiovascular & Metabolic Protection
Protects vascular endothelial integrity, improves systemic microcirculation, assists in balancing blood lipid metabolism, maintains vascular elasticity, and stabilizes cardiovascular health.
Skin Repair & Anti-Photoaging
Resists UV and environmental oxidative damage, relieves skin inflammation and redness, fades dullness and fine lines, repairs damaged skin barrier, and delays skin light aging.
High Purity Monomer & Zero Formula Interference
98%–99% high-purity single flavonoid monomer, free of plant impurities and solvent residues, stable chemical structure, ensuring accurate experimental data and consistent finished product efficacy.
Mild Safety & Wide Compatibility
Derived from natural plant sources, non-toxic and low-irritation, high biological safety, compatible with oral health products and external skincare formulas, suitable for long-term mild conditioning.
Applications
Flavonoid Pharmacology & Biomedical Research
Used as a standard natural flavonol monomer reagent for antioxidant, anti-inflammatory, antibacterial, immune regulation and anti-tumor mechanism research in pharmacological and biomedical laboratories.
Immune Conditioning & Anti-Aging Health Supplements
Core functional raw material for immune balance, anti-oxidation and body anti-aging health capsules, tablets and oral liquids, suitable for daily sub-health conditioning products.
High-End Anti-Aging & Soothing Skincare Products
Applied in antioxidant essence, anti-photoaging lotion, soothing repair cream and facial mask to improve skin dullness, fine lines and sensitive inflammation.
Functional Food & Nutritional Additives
Served as natural nutritional antioxidant additive for functional foods, solid drinks and nutritional granules to enhance product health value.
Microbiological & Antiviral Experimental Research
Special experimental material for antibacterial and antiviral pharmacological research, supporting the development of natural plant-derived antimicrobial active ingredients.
University Lab Phytochemistry Teaching Demonstration
Supplied as standard high-purity Kaempferol reagent for natural flavonoid structure identification, antioxidant and anti-inflammatory pharmacology teaching experiments.
FAQ
Q1: What is Kaempferol used for?
A: Kaempferol is a core natural flavonol monomer, widely used in antioxidant anti-aging, anti-inflammatory and antibacterial pharmacological research, as well as raw materials for immune health supplements and anti-photoaging skincare products.
Q2: What are the advantages of Kaempferol compared with other flavonoids?
A: Kaempferol features multi-target biological activity, integrating anti-oxidation, anti-inflammation, antibacterial and immune regulation functions, with mild properties, high safety and excellent skin permeability, suitable for both oral health care and external skincare applications.
Q3: What are your product advantages?
A: Our Kaempferol adopts preparative HPLC fine purification and low-temperature recrystallization technology to reach 98%/99% ultra-high purity, with zero impurity residues, stable monomer structure, consistent batch activity and reliable experimental repeatability.
Q4: How to store Kaempferol correctly?
A: Kaempferol flavonoid structure is sensitive to high temperature, strong light, humidity and alkaline environments. It must be vacuum-sealed and stored in low-temperature, dry and dark conditions to avoid active ingredient decomposition and ensure 24-month shelf life.
Q5: What is the appearance of high-purity Kaempferol?
A: Qualified high-purity Kaempferol is uniform bright yellow crystalline fine powder with delicate crystal texture, no peculiar smell, no caking, no discoloration and no visible impurities.
Q6: Can I get free samples?
A: Yes, we provide free Kaempferol test samples for academic research, pharmacological efficacy testing and formula trial production. Bulk orders support customized purity and personalized packaging solutions.
