Flavonoids (or bioflavonoids) are a class of plant and fungus secondary metabolites. Chemically, flavonoids have the general structure of a 15-carbon skeleton, which consists of two phenyl rings (A and B) and heterocyclic ring (C). This carbon structure can be abbreviated C6-C3-C6. They can be classified into: flavonoids or bioflavonoids, isoflavonoids, neoflavonoids. Flavonoids are widely distributed in plants, fulfilling many functions. Flavonoids are the most important plant pigments for flower coloration, producing yellow or red/blue pigmentation in petals designed to attract pollinator animals. In higher plants, flavonoids are involved in UV filtration, symbiotic nitrogen fixation and floral pigmentation. They may also act as chemical messengers, physiological regulators, and cell cycle inhibitors. In addition, some flavonoids have inhibitory activity against organisms that cause plant diseases.


Anti-infection >
Arenavirus Bacterial CMV Enterovirus Filovirus Fungal HBV HCV HIV HSV Influenza Virus Parasite Reverse Transcriptase RSV SARS-CoV
Antibody-drug Conjugate >
ADC Cytotoxin ADC Linker Drug-Linker Conjugates for ADC PROTAC-linker Conjugate for PAC
Apoptosis >
Apoptosis Bcl-2 Family c-Myc Caspase DAPK Ferroptosis IAP MDM-2/p53 PKD RIP kinase Survivin Thymidylate Synthase TNF Receptor
Autophagy >
Autophagy LRRK2 ULK Mitophagy
Cell Cycle/DNA Damage >
Antifolate APC ATM/ATR Aurora Kinase Casein Kinase CDK Checkpoint Kinase (Chk) CRISPR/Cas9 Deubiquitinase DNA Alkylator/Crosslinker DNA-PK DNA/RNA Synthesis Eukaryotic Initiation Factor (eIF) G-quadruplex Haspin Kinase HDAC HSP IRE1 Kinesin LIM Kinase (LIMK) Microtubule/Tubulin Mps1 Nucleoside Antimetabolite/Analog p97 PAK PARP PERK Polo-like Kinase (PLK) PPAR RAD51 ROCK Sirtuin SRPK Telomerase TOPK Topoisomerase Wee1
Cytoskeleton >
Arp2/3 Complex Dynamin Gap Junction Protein Integrin Kinesin Microtubule/Tubulin Mps1 Myosin PAK
Epigenetics >
AMPK Aurora Kinase DNA Methyltransferase Epigenetic Reader Domain HDAC Histone Acetyltransferase Histone Demethylase Histone Methyltransferase JAK MicroRNA PARP PKC Sirtuin Protein Arginine Deiminase
GPCR/G Protein >
5-HT Receptor Adenosine Receptor Adenylate Cyclase Adiponectin Receptor Adrenergic Receptor Angiotensin Receptor Bombesin Receptor Bradykinin Receptor Cannabinoid Receptor CaSR CCR CGRP Receptor Cholecystokinin Receptor CRFR CXCR Dopamine Receptor EBI2/GPR183 Endothelin Receptor GHSR Glucagon Receptor Glucocorticoid Receptor GNRH Receptor GPCR19 GPR109A GPR119 GPR120 GPR139 GPR40 GPR55 GPR84 Guanylate Cyclase Histamine Receptor Imidazoline Receptor Leukotriene Receptor LPL Receptor mAChR MCHR1 (GPR24) Melatonin Receptor mGluR Motilin Receptor Neurokinin Receptor Neuropeptide Y Receptor Neurotensin Receptor Opioid Receptor Orexin Receptor (OX Receptor) Oxytocin Receptor P2Y Receptor Prostaglandin Receptor Protease-Activated Receptor (PAR) Ras RGS Protein Sigma Receptor Somatostatin Receptor TSH Receptor Urotensin Receptor Vasopressin Receptor Melanocortin Receptor
Immunology/Inflammation >
Aryl Hydrocarbon Receptor CCR Complement System COX CXCR FLAP Histamine Receptor IFNAR Interleukin Related IRAK MyD88 NO Synthase NOD-like Receptor (NLR) PD-1/PD-L1 PGE synthase Salt-inducible Kinase (SIK) SPHK STING Thrombopoietin Receptor Toll-like Receptor (TLR) Arginase
JAK/STAT Signaling >
EGFR JAK Pim STAT
MAPK/ERK Pathway >
ERK JNK KLF MAP3K MAP4K MAPKAPK2 (MK2) MEK Mixed Lineage Kinase MNK p38 MAPK Raf Ribosomal S6 Kinase (RSK)
Membrane Transporter/Ion Channel >
ATP Synthase BCRP Calcium Channel CFTR Chloride Channel CRAC Channel CRM1 EAAT2 GABA Receptor GlyT HCN Channel iGluR Monoamine Transporter Monocarboxylate Transporter Na+/Ca2+ Exchanger Na+/HCO3- Cotransporter Na+/K+ ATPase nAChR NKCC P-glycoprotein P2X Receptor Potassium Channel Proton Pump SGLT Sodium Channel TRP Channel URAT1
Metabolic Enzyme/Protease >
15-PGDH 5 alpha Reductase 5-Lipoxygenase Acetyl-CoA Carboxylase Acyltransferase Adenosine Deaminase Adenosine Kinase Aldehyde Dehydrogenase (ALDH) Aldose Reductase Aminopeptidase Angiotensin-converting Enzyme (ACE) ATGL ATP Citrate Lyase Carbonic Anhydrase Carboxypeptidase Cathepsin CETP COMT Cytochrome P450 Dipeptidyl Peptidase Dopamine β-hydroxylase E1/E2/E3 Enzyme Elastase Enolase FAAH FABP Factor Xa Farnesyl Transferase Fatty Acid Synthase (FAS) FXR Glucokinase GSNOR Gutathione S-transferase HCV Protease Hexokinase HIF/HIF Prolyl-Hydroxylase HIV Integrase HIV Protease HMG-CoA Reductase (HMGCR) HSP Indoleamine 2,3-Dioxygenase (IDO) Isocitrate Dehydrogenase (IDH) Lactate Dehydrogenase LXR MAGL Mineralocorticoid Receptor Mitochondrial Metabolism MMP Nampt NEDD8-activating Enzyme Neprilysin PAI-1 PDHK PGC-1α Phosphatase Phosphodiesterase (PDE) Phospholipase Procollagen C Proteinase Proteasome Pyruvate Kinase RAR/RXR Renin ROR Ser/Thr Protease SGK Stearoyl-CoA Desaturase (SCD) Thrombin Tryptophan Hydroxylase Tyrosinase Xanthine Oxidase
Neuronal Signaling >
5-HT Receptor AChE Adenosine Kinase Amyloid-β Beta-secretase CaMK CGRP Receptor COMT Dopamine Receptor Dopamine Transporter FAAH GABA Receptor GlyT iGluR Imidazoline Receptor mAChR Melatonin Receptor Monoamine Oxidase nAChR Neurokinin Receptor Opioid Receptor Serotonin Transporter γ-secretase
NF-κB >
NF-κB IKK Keap1-Nrf2 MALT1
PI3K/Akt/mTOR >
Akt AMPK ATM/ATR DNA-PK GSK-3 MELK mTOR PDK-1 PI3K PI4K PIKfyve PTEN
PROTAC >
PROTAC E3 Ligase Ligand-Linker Conjugate Ligand for E3 Ligase PROTAC Linker PROTAC-linker Conjugate for PAC
Protein Tyrosine Kinase/RTK >
Ack1 ALK Bcr-Abl BMX Kinase Btk c-Fms c-Kit c-Met/HGFR Discoidin Domain Receptor DYRK EGFR Ephrin Receptor FAK FGFR FLT3 IGF-1R Insulin Receptor IRAK Itk PDGFR PKA Pyk2 ROS Src Syk TAM Receptor Trk Receptor VEGFR
Stem Cell/Wnt >
Casein Kinase ERK Gli GSK-3 Hedgehog Hippo (MST) JAK Notch Oct3/4 PKA Porcupine ROCK sFRP-1 Smo STAT TGF-beta/Smad Wnt YAP β-catenin γ-secretase
TGF-beta/Smad >
TGF-beta/Smad PKC ROCK TGF-β Receptor
Vitamin D Related >
VD/VDR
Others >
Androgen Receptor Aromatase Estrogen Receptor/ERR Progesterone Receptor Thyroid Hormone Receptor Others

7-Hydroxy-4H-chromen-4-one

7-Hydroxychromone is a Src kinase inhibitor with an IC50 of <300 μM.

  • CAS Number: 59887-89-7
  • MF: C9H6O3
  • MW: 162.14200
  • Catalog: Src
  • Density: 1.403g/cm3
  • Boiling Point: 345.4ºC at 760 mmHg
  • Melting Point: 215-220ºC
  • Flash Point: 148.1ºC

Juglanin

Juglanin is a JNK activator.

  • CAS Number: 5041-67-8
  • MF: C20H18O10
  • MW: 418.351
  • Catalog: JNK
  • Density: 1.8±0.1 g/cm3
  • Boiling Point: 803.5±65.0 °C at 760 mmHg
  • Melting Point: 230-231℃ (ethanol )
  • Flash Point: 289.0±27.8 °C

Isomangiferin

Isomangiferin, a natural product, is reported to have antiviral activity.

  • CAS Number: 24699-16-9
  • MF: C19H18O11
  • MW: 422.340
  • Catalog: Infection
  • Density: 1.8±0.1 g/cm3
  • Boiling Point: 798.8±60.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 288.2±26.4 °C

Luteolin-6-C-glucoside

Isoorientin is a potent inhibitor of COX-2 with an IC50 value of 39 μM.

  • CAS Number: 4261-42-1
  • MF: C21H20O11
  • MW: 448.377
  • Catalog: Cancer
  • Density: 1.8±0.1 g/cm3
  • Boiling Point: 856.7±65.0 °C at 760 mmHg
  • Melting Point: 245-246ºC
  • Flash Point: 303.2±27.8 °C

Sophoricoside

Sophoricoside is an isoflavone glycoside isolated from Sophora japonica and has anti-inflammatory, anti-cancer and immunosuppressive effects.

  • CAS Number: 152-95-4
  • MF: C21H20O10
  • MW: 432.378
  • Catalog: Cancer
  • Density: 1.6±0.1 g/cm3
  • Boiling Point: 763.3±60.0 °C at 760 mmHg
  • Melting Point: 285ºC
  • Flash Point: 271.5±26.4 °C

Scutellarein

Scutellarin, a main active ingredient extracted from Erigeron breviscapus (Vant.) Hand-Mazz., has been wildly used to treat acute cerebral infarction and paralysis induced by cerebrovascular diseases.

  • CAS Number: 529-53-3
  • MF: C15H10O6
  • MW: 286.236
  • Catalog: Autophagy
  • Density: 1.7±0.1 g/cm3
  • Boiling Point: 642.9±55.0 °C at 760 mmHg
  • Melting Point: 330ºC
  • Flash Point: 249.9±25.0 °C

Complanatoside

Complanatuside is a flavonoid found in the traditional Chinese medicine Semen Astragali Complanati.

  • CAS Number: 116183-66-5
  • MF: C28H32O16
  • MW: 624.544
  • Catalog: Cancer
  • Density: 1.7±0.1 g/cm3
  • Boiling Point: 975.0±65.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 320.2±27.8 °C

Warangalone

Warangalone is an anti-malarial compound which can inhibit the growth of both strains of parasite 3D7 (chloroquine sensitive) and K1 (chloroquine resistant) with IC50s of 4.8 μg/mL and 3.7 μg/mL, respectively. Warangalone can also inhibit cyclic AMP-dependent protein kinase catalytic subunit (cAK) with an IC50 of 3.5 μM.

  • CAS Number: 4449-55-2
  • MF: C25H24O5
  • MW: 404.455
  • Catalog: Parasite
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 627.0±55.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 216.7±25.0 °C

Apigenin

Apigenin is a competitive CYP2C9 inhibitor with a Ki of 2 μM.

  • CAS Number: 520-36-5
  • MF: C15H10O5
  • MW: 270.237
  • Catalog: Autophagy
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 555.5±50.0 °C at 760 mmHg
  • Melting Point: >300 °C(lit.)
  • Flash Point: 217.1±23.6 °C

Chrysin

Chrysin is one of the most well known estrogen blockers.

  • CAS Number: 480-40-0
  • MF: C15H10O4
  • MW: 254.238
  • Catalog: Cancer
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: 491.9±45.0 °C at 760 mmHg
  • Melting Point: 284-286 °C(lit.)
  • Flash Point: 192.5±22.2 °C

Podocarpusflavone A

Podocarpusflavone A is a DNA topoisomerase I inhibitor, have moderated anti-proliferative activity induce cell apoptosis in MCF-7, is developing anti-tumor drugstarget: DNA topoisomerase IIn vitro: podocarpusflavone-A show significant inhibitions against DLD, KB, MCF-7, HEp-2 tumor cell lines (ED50 4.56-16.24 μg/mL) and induce cell apoptosis in MCF-7 via mainly sub-G1/S phase arrest. PF (40 ug/mL, 24 hr) significantly induced about 10 folds of cell deaths and growth arrest in S-phase than the control group.

  • CAS Number: 22136-74-9
  • MF: C31H20O10
  • MW: 552.484
  • Catalog: Apoptosis
  • Density: 1.6±0.1 g/cm3
  • Boiling Point: 879.3±65.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 295.2±27.8 °C

(-)-Epigallocatechin gallate

(-)-Epigallocatechin Gallate is an antioxidant polyphenol flavonoid form green tea, and inhibits the activation of EGFR, HER2 and HER3, with antitumor activity.

  • CAS Number: 989-51-5
  • MF: C22H18O11
  • MW: 458.372
  • Catalog: Apoptosis
  • Density: 1.9±0.1 g/cm3
  • Boiling Point: 909.1±65.0 °C at 760 mmHg
  • Melting Point: 222-224°C
  • Flash Point: 320.0±27.8 °C

ProcyanidinB2

Procyanidin B2 is a natural flavonoid, with anti-cancer, antioxidant activities.

  • CAS Number: 29106-49-8
  • MF: C30H26O12
  • MW: 578.520
  • Catalog: Cancer
  • Density: 1.7±0.1 g/cm3
  • Boiling Point: 955.3±65.0 °C at 760 mmHg
  • Melting Point: 197-198ºC
  • Flash Point: 531.6±34.3 °C

Baohuoside II

IKarisoside A(Icarisoside-A) is a natural compound isolated from Epimedium koreanum (Berberidaceae); has anti-inflammatory properties.IC50 value:Target: in vitro: Ikarisoside A inhibited the expression of LPS-stimulated inducible nitric oxide synthase (iNOS) and the production of nitric oxide (NO) in LPS-stimulated RAW 264.7 cells and mouse bone marrow-derived macrophages (BMMs) in a concentration-dependent manner. In addition, Ikarisoside A reduced the release of pro-inflammatory cytokines, such as tumor necrosis factor-alpha (TNF-alpha) and interleukin-1 beta (IL-1 beta). Furthermore, Ikarisoside A inhibited the activity of p38 kinase and nuclear factor-kappaB (NF-kappaB) [1]. Ikarisoside A is a potent inhibitor of osteoclastogenesis in RANKL-stimulated RAW 264.7 cells as well as in bone marrow-derived macrophages.The inhibitory effect of Ikarisoside A resulted in decrease of osteoclast-specific genes like matrix metalloproteinase 9 (MMP9), tartrate-resistant acid phosphatase (TRAP), receptor activator of NF-kappaB (RANK), and cathepsin K. Moreover, Ikarisoside A blocked the resorbing capacity of RAW 264.7 cells on calcium phosphate-coated plates. Ikarisoside A also has inhibitory effects on the RANKL-mediated activation of NF-kappaB, JNK, and Akt [2].

  • CAS Number: 55395-07-8
  • MF: C26H28O10
  • MW: 500.495
  • Catalog: Inflammation/Immunology
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 782.1±60.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 264.7±26.4 °C

isotanshinone I

Isotanshinone I has inhibitory activity against α-glucosidase and formation of AGE, with IC50s of 1.13, 0.432 μM for α-glucosidase and AGE, respectively.

  • CAS Number: 20958-17-2
  • MF: C18H12O3
  • MW: 276.28600
  • Catalog: Infection
  • Density: 1.324±0.06 g/cm3
  • Boiling Point: 495.8±34.0 °C at 760 mmHg
  • Melting Point: 219 ºC
  • Flash Point: N/A

Galangin

Galangin is an agonist/antagonist of the arylhydrocarbon receptor, and also shows inhibition of CYP1A1 activity.

  • CAS Number: 548-83-4
  • MF: C15H10O5
  • MW: 270.237
  • Catalog: Autophagy
  • Density: 1.6±0.1 g/cm3
  • Boiling Point: 518.6±50.0 °C at 760 mmHg
  • Melting Point: 214-215 °C(lit.)
  • Flash Point: 202.0±23.6 °C

Naringenin

Naringenin is the predominant flavanone in grapefruit; displays strong anti-inflammatory and antioxidant activities.

  • CAS Number: 480-41-1
  • MF: C15H12O5
  • MW: 272.253
  • Catalog: Influenza Virus
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 577.5±50.0 °C at 760 mmHg
  • Melting Point: 247-250 °C(lit.)
  • Flash Point: 224.7±23.6 °C

Isoliquiritigenin

Isoliquiritigenin is an anti-tumor flavonoid from the root of Glycyrrhiza glabra, which inhibits aldose reductase with an IC50 of 320 nM.

  • CAS Number: 961-29-5
  • MF: C15H12O4
  • MW: 256.253
  • Catalog: Autophagy
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: 504.0±42.0 °C at 760 mmHg
  • Melting Point: 206-210°C
  • Flash Point: 272.7±24.4 °C

Epicatechin

(-)-Epicatechin inhibits cyclooxygenase-1 (COX-1) with an IC50 of 3.2 μM. (-)-Epicatechin inhibits the IL-1β-induced expression of iNOS by blocking the nuclear localization of the p65 subunit of NF-κB.

  • CAS Number: 490-46-0
  • MF: C15H14O6
  • MW: 290.268
  • Catalog: Cancer
  • Density: 1.6±0.1 g/cm3
  • Boiling Point: 630.4±55.0 °C at 760 mmHg
  • Melting Point: 240 °C (dec.)(lit.)
  • Flash Point: 335.0±31.5 °C

Nobiletin

Nobiletin is a citrus flavonoid with anti-inflammatory, anti-cancer, cholesterol lowering, memory protection activities.

  • CAS Number: 478-01-3
  • MF: C21H22O8
  • MW: 402.395
  • Catalog: Autophagy
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 587.9±50.0 °C at 760 mmHg
  • Melting Point: 138 °C
  • Flash Point: 256.5±30.2 °C

Bismuth Potassium Citrate

Gastrodenol(Bismuth tripotassium dicitrate; De-Noltab)is a mineral that is used in treating ulcers and upset stomach.

  • CAS Number: 57644-54-9
  • MF: C6H8O7.1/2Bi.3/2K
  • MW: 355.26
  • Catalog: Others
  • Density: N/A
  • Boiling Point: 309.6ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 155.2ºC

Neohesperidin

Neohesperidin is a flavonoid compound found in high amounts in Poncirus trifoliata with anti-oxidant and anti-inflammatory effects.

  • CAS Number: 13241-33-3
  • MF: C28H34O15
  • MW: 610.561
  • Catalog: Inflammation/Immunology
  • Density: 1.7±0.1 g/cm3
  • Boiling Point: 933.7±65.0 °C at 760 mmHg
  • Melting Point: 239-243ºC
  • Flash Point: 306.7±27.8 °C

Isobavachalcone

Isobavachalcone(Corylifolinin) is a chalcone constituent of Angelica keiskei, induces apoptosis in neuroblastoma.IC50 value:Target: Isobavachalcone inhibits platelet aggregation. Inhibitor of Epstein-Barr virus early antigen (EBV-EA) induction. Isobavachalcone exhibits potent inhibitory effect on skin tumor promotion. Potent inhibitor of MMP-2. Displays DNA strand-scission (cleaving) activity. Isobavachalcone hows antifungal activity.

  • CAS Number: 20784-50-3
  • MF: C20H20O4
  • MW: 324.370
  • Catalog: Autophagy
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 549.0±50.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 299.9±26.6 °C

6-Shogaol

6-shogaol, an active compound isolated from Ginger (Zingiber officinale Rosc), exhibits a variety of biological activities including anticancer, anti-inflammation, and anti-oxidation.

  • CAS Number: 555-66-8
  • MF: C17H24O3
  • MW: 276.371
  • Catalog: Autophagy
  • Density: 1.0±0.1 g/cm3
  • Boiling Point: 427.5±35.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 150.3±19.4 °C

Corylin

Corylin is a major bioactive compound isolated from Psoralea corylifolia L; antibiotic or anticancer compound.IC50 value:Target: in vitro: Corylin showed an inhibitory effect on IL-6-induced STAT3 promoter activity in Hep3B cells with IC50 value of 1.37 uM [1].

  • CAS Number: 53947-92-5
  • MF: C20H16O4
  • MW: 320.339
  • Catalog: Cancer
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 527.4±50.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 193.1±23.6 °C

Safflower yellow

Safflower yellow is extracted from the flowers of the plant safflower (Carthamus tinctorius) and as the traditional Chinese medicine it has been extensively used for the treatment of cardio cerebrovascular diseases.

  • CAS Number: 1401-20-3
  • MF: C42H43O22
  • MW: 899.78
  • Catalog: Dye Reagents
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Glycitin

Glycitin is a natural isoflavone isolated from legumes; promotes the proliferation of bone marrow stromal cells and osteoblasts and suppresses bone turnover.

  • CAS Number: 40246-10-4
  • MF: C22H22O10
  • MW: 446.404
  • Catalog: Others
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 751.1±60.0 °C at 760 mmHg
  • Melting Point: 210ºC
  • Flash Point: 264.1±26.4 °C

Pomiferin

Pomiferin, a flavonoid from the fruits of Maclura pomifera, acts as an potential inhibitor of HDAC, with an IC50 of 1.05 μM, and also potently inhibits mTOR (IC50, 6.2 µM).

  • CAS Number: 572-03-2
  • MF: C25H24O6
  • MW: 420.45400
  • Catalog: HDAC
  • Density: 1.314g/cm3
  • Boiling Point: 673.5ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 233.3ºC

Hesperetin

Hesperetin is a natural flavanone, and acts as a potent and broad-spectrum inhibitor against human UGT activity.

  • CAS Number: 520-33-2
  • MF: C16H14O6
  • MW: 302.279
  • Catalog: Neurological Disease
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 586.2±50.0 °C at 760 mmHg
  • Melting Point: 230-232°C
  • Flash Point: 223.0±23.6 °C

Isosakuranetin

Isosakuranetin is a flavanone flavonoid which can be found in the fruit of Citrus bergamia.

  • CAS Number: 480-43-3
  • MF: C16H14O5
  • MW: 286.279
  • Catalog: Others
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: 539.2±50.0 °C at 760 mmHg
  • Melting Point: 193-194ºC
  • Flash Point: 205.6±23.6 °C