Fisetin bulk powder belongs to the flavonoid family and occurs naturally in certain plants and fruits, although usually at very low levels. For commercial use, it is obtained from plant-derived raw materials and processed through a series of extraction, separation, and purification steps. Instead of being supplied as a broad botanical extract, the compound is isolated in a purified form so that its identity and purity can be clearly confirmed.
In formulation and development work, it is generally treated as a standardized ingredient rather than a finished concept. Its value lies in the fact that composition and assay are clearly defined, which makes it easier to evaluate and use alongside other ingredients in supplement or nutraceutical systems. Because of this, it often appears in projects where controlled inputs and repeatable results are preferred.
From a supply standpoint, the ingredient is mainly used in bulk and long-term programs that rely on stable specifications. Shaanxi Medibridge Biotech Co., Ltd. supplies defined purity grades supported by routine quality testing, with flexible options for bulk supply, specification discussion, and OEM-related cooperation.
COA
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Product Name |
CAS Number |
Batch Number |
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fisetin bulk powder |
528-48-3 |
MB2601091530 |
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Manufacturer Date |
Analysis Date |
Expiry Date |
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2026-01-09 |
2026-01-10 |
2028-01-08 |
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Sample Qty Base |
Packing |
Test Method |
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500KGS |
25kg/drum |
HPLC |
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Item |
Standard |
Results |
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Appearence |
yellow powder |
Complies |
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Assay |
98% |
98.12% |
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Mesh Size |
100% pass 80 mesh |
Complies |
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Ash |
≤5% |
2.85% |
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Loss on Drying |
≤5% |
2.82% |
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Heavy Metal |
≤10.0mg/kg |
Complies |
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Pb |
≤2.0mg/kg |
Complies |
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AS |
≤1.0mg/kg |
Complies |
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Hg |
≤0.1mg/kg |
Complies |
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Residue of Pesticide |
Negative |
Negative |
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Total Plate Count |
≤ 1000cfu/g |
Complies |
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Yeast&Mold |
≤100cfu/g |
Complies |
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E.coil |
Negative |
Negative |
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Salmonella |
Negative |
Negative |
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Storage |
Store in cool & dry place. keep away from strong light and heat |
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Conclusion |
The batch conforms to the IN-HOUSE standard |
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Source & Production Logic
Fisetin is a naturally occurring flavonoid that exists in plant materials at very low concentrations, which means it cannot be supplied in a stable or predictable form without further processing. In commercial production, fisetin is therefore not treated as a simple botanical extract, but as a target compound that needs to be selectively isolated. Plant-derived raw materials are first processed through controlled extraction to release flavonoid fractions, followed by stepwise separation to remove non-target components.
After extraction, fisetin is further purified using compound-level refinement techniques to achieve a defined chemical profile. This process focuses on isolating fisetin as a single molecule rather than retaining a mixed flavonoid composition. Through repeated purification and verification steps, the final material is supplied as a high-purity compound with a confirmed molecular structure, allowing its assay and identity to be clearly measured and reproduced from batch to batch.
The focus of this approach is control, not yield. By working at the compound level, variability caused by plant matrices, seasonal differences, or co-existing constituents is largely removed. The result is a fisetin powder with stable purity, consistent physical behavior, and predictable performance in formulation and research settings, For projects that depend on stable specifications, this type of production logic is generally preferred.
Functional Background of Fisetin
Antioxidant Activity
Fisetin is commonly discussed in research settings as a flavonoid with antioxidant-related activity. Its molecular structure, characterized by multiple hydroxyl groups, is often examined in connection with how it interacts with oxidative processes at the cellular level. For formulation and ingredient evaluation, fisetin is typically treated as a bioactive compound rather than a broad-spectrum extract.
Cellular Pathways
In scientific and formulation studies, fisetin is frequently explored for its interaction with cellular signaling and regulatory pathways. Research attention is mainly focused on how this compound behaves within cell-based models, especially in areas related to cellular stress response and metabolic regulation. These discussions usually remain at the biochemical or cellular level rather than extending to direct physiological outcomes.
Research Applications
Beyond formulation use, fisetin is also widely used as a reference compound in flavonoid-related research. Its well-defined chemical profile and stable purity make it suitable for comparative studies and development work involving polyphenols and related bioactive compounds. This role has contributed to its continued presence in both academic research and applied ingredient development.
Use & Storage Considerations
This material is supplied as a high-purity flavonoid compound and is generally handled in controlled formulation or research settings. Because it is a single-compound material, accurate weighing and even blending are typically emphasized during use, especially in dry systems such as powder blends or capsule formulations.
The material shows limited solubility in water and is usually evaluated in suitable solvent systems during development or testing. Standard handling practices are commonly applied to limit exposure to moisture, light, and excessive heat throughout processing.
For storage, fisetin powder is normally kept in tightly sealed containers in a cool, dry environment. Avoiding light and humidity helps maintain its chemical stability and supports consistent quality during extended storage periods.
Why Choose Us
Fisetin bulk powder is supplied with a focus on consistency rather than short-term output. From raw material selection to compound isolation and final testing, each batch follows the same production and quality control logic, helping reduce variability that can affect formulation work. This approach is especially important for projects that require stable specifications across multiple production cycles.
Quality control is centered on clear, measurable parameters. Routine testing is used to confirm identity, purity, and batch performance, with documentation available to support internal review or regulatory reference. Instead of offering a wide range of loosely defined grades, the emphasis is placed on maintaining reliable purity levels that can be reproduced over time.
Shaanxi Medibridge Biotech Co., Ltd. supports bulk sourcing, specification discussion, and flexible cooperation models based on project needs. The goal is not one-time supply, but steady delivery that fits into ongoing formulation and development plans.
FAQ
Q: Is fisetin natural?
A: Yes, it is a naturally occurring flavonoid found in a limited number of plants and fruits.
Q: Is fisetin bad for the kidneys?
A: There is no general reference describing fisetin as harmful to kidney function at the ingredient level.
Q: What food is highest in fisetin?
A: Strawberries are often cited, followed by apples and persimmons, although levels vary widely.
Q: Is fisetin an extract or a single compound?
A: It is usually supplied as a purified single compound rather than a mixed plant extract.
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