L-(R,S)-Tetrahydropalmatine (Rotundine) is extracted from Corydalis yanhusuo W. T. Wang.

Canadine has antioxidant activity with low-toxic effect.

Corydalmine exhibits antibacterial activities against Staphylococcus aureus and methicillin-resistant S. aureus strains.1-Corydalmine significantly inhibits spore germination of all the fungi at 100 to 1500 ppm. l-Corydalmine also exhibits potent analgesic activity in preclinical models, it is under development as an oral analgesic agent.

(-)-Isocorypalmine ((S)-Tetrahydrocolumbamine), a natural product isolated from Corydalis chaerophylla, has significant antifungal activity.

1-Methoxyberberine chloride is a potential antifungal agent.

Scoulerine is an inhibitor of ß-site amyloid precursor protein cleaving enzyme 1(BACE1). Scoulerine a potent antimitotic compound that inhibits proliferation, arrests cell cycle, and induces apoptosis in cancer cells.

Dehydroglaucine is an acetylcholinesterase inhibitor, it shows antimicrobial activity against Staphylococcus aureus, Mycobacterium smegmatis, Candida albicans, and Aspergillus niger.

Glaucine has antitussive, antioxidative potential and antiviral activities, it may be an anti-arthritic agent, it can enhance LPS and zymosan-induced IL-10 production. Glaucine can inhibit the migration and invasion of human breast cancer cells by MMP-9 i

Dehydrocavidine (Dehydrocorydaline) has antitumor activity, it inhibits MCF-7 cell proliferation by inducing apoptosis mediated by regulating Bax/Bcl-2, activating caspases as well as cleaving PARP.

Corydine is the adrenolytic and weak cholinergic agent, it shows antimicrobial, and antineoplastic activities. Corydine shows irritant and respiratory stimulant and CNS depressant activities. Injected intravenously in rabbits corydine produced an initial

Tetrahydropalmatine hydrochloride (Gindarine hydrochloride) is an isoquinoline alkaloid found in several different plant species, mainly in the Corydalis genus (Yan Hu Suo). It is a potent muscle relaxant.

1. Acetylcorynoline (O-Acetylcorynoline) has antifungal、anti-inflammatory activity. 2. Acetylcorynoline may be one of the potent immunosuppressive agents through the blockage of dendritic cells maturation and function. 3. Acetylcorynoline is potential as a possible antiparkinsonian drug. (1) Significantly decreases dopaminergic neuron degeneration induced by 6-hydroxydopamine in BZ555 strain; (2) Prevents α-synuclein aggregation; (3) Restores food-sensing behavior, and dopamine levels; (4) Prolongs life-span in 6-hydroxydopamine-treated N2 strain. 4. Acetylcorynoline may exert its effects by decreasing egl-1 expression to suppress apoptosis pathways and by increasing rpn5 expression to enhance the activity of proteasomes.

Dihydroberberine has anti-atherosclerotic, anti-inflammatory, hypolipidemic and antitumor activities. It inhibits human ether-a-go-go-related gene (hERG) channels and remarkably reduces Hsp90 expression and its interaction with hERG.

1. Epiberberine may be caused drug interactions based on CYP2D6 enzyme. 2. Epiberberine has anti-adipogenic effect is mediated by downregulation of the Raf/MEK1/ERK1/2 and AMPKα/Akt pathways during 3T3-L1 adipocyte differentiation. 3. Epiberberine, as the brightest FSA emitter among the alkaloids, can also serve as an efficient conformation probe for HTG DNA and discriminate the DNA G-quadruplex from the RNA counterpart.

Bicuculline ((+)-Bicuculline) is a light-sensitive competitive antagonist of GABAA receptors. It was originally identified in 1932 in plant alkaloid extracts and has been isolated from Dicentra cucullaria, Adlumia fungosa, Fumariaceae, and several Corydalis species.

1. Dehydrocorydaline(DHC) not only inhibits antibody-mediated allergic reactions but also influences cell-mediated allergic reactions, and the inhibitory effect of Corydalis Tuber on allergic reactions may be partially attributed to DHC. 2. Dehydrocorydal

Epiberberine chloride (Epiberberine (chloride)) is an alkaloid isolated from Coptis chinensis, acts as a potent AChE and BChE inhibitor, and a non-competitive BACE1 inhibitor (IC50s: 1.07, 6.03 and 8.55 μM).

1. Corynoline ((+)-Corynoline) is an acetylcholinesterase inhibitor.

Corypalmine (IC50=128.0±10.5 uM) can inhibit prolyl oligopeptidase. (-)-Corypalmine shows inhibition activity against spore germination of some fungi.

1. Dehydrocorydaline (13-Methylpalmatine) exerts anti-metastatic potential via suppression of MMPs and Bcl-2 signaling in NSC-LC cells. 2. Dehydrocorydaline stimulates p38 MAPK activation, which can enhance heterodimerization of MyoD and E proteins, thus resulting in MyoD activation and myoblast differentiation. 3. Dehydrocorydaline shows antiplatelet effects, it inhibits thrombin-induced platelet aggregation in a low dose ( IC50= 34.914 ug/mL). 4. Dehydrocorydaline has anti-inflammatory and antinociceptive effects. 5. Dehydrocorydaline inhibits MCF-7 cell proliferation by inducing apoptosis mediated by regulating Bax/Bcl-2, activating caspases as well as cleaving PARP.

Yuanhunine is a natural product for research related to life sciences. The catalog number is TN6392 and the CAS number is 104387-15-7.

Tetrahydropalmatine (DL-Tetrahydropalmatine) is an active component isolated from corydalis, suppressing amygdaloid release of dopamine to inhibit an epileptic attack in rats.

1. Corydaline (Corydalin), an isoquinoline alkaloid, is one of the major active constituents in a new prokinetic botanical agent. 2. Corydaline promotes gastric emptying and small intestinal transit and facilitates gastric accommodation. 3. Corydaline exhibits the anti-acetylcholinesterase, antiallergic, and antinociceptive activities. 4. Corydaline has potent inhibition of CYP2C19 and CYP2C9.

13-Methylberberine chloride shows anti-adipogenic effect on 3T3-L1 adipocytes, it has potential as an anti-obesity drug

1. Tetrahydrocoptisine (STYLOPINE) has effective effects in suppressing inflammation. 2. Tetrahydrocoptisine possesses a protective effect on LPS-induced ALI through inhibiting of NF-κB signaling pathways, which may involve the inhibition of pulmonary inflammatory process. 3. Tetrahydrocoptisine has gastroprotective activity, is attributed to reducing NO production and adjusting the pro-inflammatory cytokine, inhibited neutrophil accumulation and NF-κB expression. 4. Tetrahydrocoptisine is an active anti-inflammatory constituent by inhibition of TNF-α, IL-6 and NO production possibly via down-regulation of NF-κB activation, phospho-ERK1/2 and phospho-p38MAPK signal pathways.