Quercetin Anti-inflammatory

Quercetin Anti-inflammatory

● Antioxidant
● Anti-fibrosis
● Anti-inflammatory




Quercetin is a kind of polyhydroxy flavonoids, which widely exists in flowers, leaves and fruits of plants. Quercetin has many biological activities and high medicinal value. Its known pharmacological effects include anti-cancer, anti-oxidation, anti-fibrosis, anti-inflammation and so on. New pharmacological effects have been found continuously, such as anti-aging, anti-depression and so on. At present, many studies on the pharmacological effects of quercetin are not yet mature, and the drugs with quercetin as the main component are relatively few, and have not been widely used in clinical treatment.



In addition to extensive anti-tumor effects, quercetin also has important antioxidant effects. In the process of oxidative stress, excessive production of high active molecules such as reactive oxygen species (ROS) and reactive nitrogen free radicals (ROS) leads to imbalance between oxidation system and antioxidant system, which eventually leads to tissue damage and disease development. Free radicals can not only cause or aggravate diseases such as tumors, stroke and heart disease, but also have a close relationship with free radical damage in the aging process.


In recent years, the anti-fibrosis studies of quercetin have shown that quercetin has anti-hepatic fibrosis, pulmonary fibrosis, keloid hyperplasia and glaucoma filtering bleb scarring. The anti-fibrosis mechanisms include inhibiting fibroblast proliferation, inhibiting collagen synthesis, preventing oxidative damage, inhibiting angiogenesis and inducing cell apoptosis.


Quercetin can alleviate the inflammation caused by PMN activation by preexcitator and achieve anti-inflammatory effect. In addition, quercetin also showed good anti-inflammatory effects in the experimental study of the treatment of non-bacterial prostatitis and acute gouty arthritis.

  Other functions  

It has been found that quercetin has anti-bacterial, anti-aging, anti-depression, anti-leukemia, anti-diabetes and other pharmacological effects. Quercetin has broad-spectrum antimicrobial activity, and its antimicrobial activity to Gram-negative bacteria is stronger than that of Gram-positive bacteria.


Quick Details

English name: Onion Extract Quercetin 95%
CAS No.: 117-39-5 
Molecular Formula: C15H10O7 
Molecular Weight: 302.23
Active ingredients : Quercetin
Specification: 95% by HPLC
Used Part: Sophora Flower Bud 
Appearance: Yellow green fine powder
Mesh size: 80 Mesh
Test Method: HPLC

  Supply Ability  

Supply Ability:

20 Ton/Tons per   Month

  Packaging & Delivery  

Packaging   Details







Lead Time

Quercetin Powder Bulk & Private Label Packaging for your options:

* 1~5 kg in a   Al-Foil Bag w/ Zip lock Bag inside

* 5~20 kg in a   Paper Carton

* 25kg in a   Paper Drum w/ Double Plastic Bags inside


3 days after   payment


Quercetin 95%

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