Bignoniaceae Extract

Catalposide, an iridoid glycoside that could be isolated from Catalpa ovate G. Don (Bignoniaceae), inhibits TNF-α, IL-1β, and IL-6 productions and NF-κB (p65) activation in lipopolysaccharide-activated RAW 264.7 macrophages.

Catalponol is a naphthoquinone derivative. Catalponol enhances dopamine biosynthesis by inducing tyrosine hydroxylase activity. Catalponol also increases the levels of cAMP and tyrosine hydroxylase phosphorylation in PC12 cells.

5,6,7,8-Tetramethoxyflavone is a flavonoid with antifungal and antibacterial activities, capable of inhibiting the growth of *Staphylococcus aureus* and *Candida albicans*. 5,6,7,8-Tetramethoxyflavone can be utilized in research related to infections ^[1].

Lup-20(29)-ene-2alpha,3beta-diol (20(29)-Lupene-2α,3β-diol) is a phenol product that can be isolated from Chinese bog bilberry wines.

6'-O-p-Hydroxybenzoylcatalposide is a Iridoids product that can be isolated from the leaves of Catalpa ovata G. Don..

3-Hydroxycatalponol is a Sesquiterpenoids product that can be isolated from the roots of Ekmanianthe longiflora.

Kigelinone is a natural product.

9-Methoxy-α-lapachone is a Quinones product that can be isolated from the stems of Catalpa ovata.

Specioside B is a Phenols product that can be isolated from the stem barks of Stereospermum acuminatissimum K. Schum..

2-Prenyl-1-naphthol is a Sesquiterpenoids product that can be isolated from the herbs of Catalpa ovata.

Chrysin-7-O-glucuronide (Standard) is the analytical standard of Chrysin-7-O-glucuronide (Hy-N2376). This product is intended for research and analytical applications. Chrysin-7-O-glucuronide is a flavonoid found in Scutellaria baicalensis. Chrysin-7-O-glucuronide inhibits α-glucosidase and α-amylase with IC₅₀ values of 612.13 and 980.73 μg/mL. Chrysin-7-O-glucuronide suppresses NF-κB signaling activity. Chrysin-7-O-glucuronide scavenges free radicals, acts as a tight junction protector, and mitigates intestinal mucosal barrier injury. Chrysin-7-O-glucuronide can be used for the research of type 2 diabetes and severe acute pancreatitis-induced intestinal mucosal barrier injury.

Oroxin A (Standard) is the analytical standard of Oroxin A. This product is intended for research and analytical applications. Oroxin A is the major component of an ethanol-water Oroxylum indicum (L.) Kurz (Bignoniaceae) seed extract (OISE). Oroxin A acts as a partial PPARγ agonist that can activate PPARγ transcriptional activation. Oroxin A activates PPARγ by docking into the PPARγ protein ligand-binding domain. Oroxin A also exhibits an inhibitory activity against α-glucosidase and an antioxidant capacity. Oroxin A exerts anti-breast cancer effects by inducing ER stress-mediated senescence.

Lapachol (Standard) is the analytical standard of Lapachol. This product is intended for research and analytical applications. Lapachol, a natural naphthoquinone, is an orally active, potent DHODH inhibitor. Lapachol has immunosuppressive activity on lymphocytes through its direct ability to block DHODH activity and inhibit pyrimidine synthesis. Lapachol is a vitamin K antagonist with antitumor activity and can inhibit DNA and RNA synthesis in neoplastic cells. Lapachol has anti-Leishmania activity.

Catalpalactone has anti-inflammatory effect. Catalpalactone inhibits LPS-induced NO production and iNOS expression in RAW264.7 cells, and also inhibits IRF3, NF-κB, and IFN-β/STAT-1 activation. Catalpalactone also inhibits dopamine biosynthesis by reducing tyrosine hydroxylase (TH) and aromatic-l-amino acid decarboxylase (AADC) activities.

(±)-Cleroindicin E is a natural compound isolated from the herbs of Clerodendrum indicum.

9-Hydroxy-α-lapachone (α-Dihydrocaryopterone) is a natural phenol, exhibits potent inhibitory effects with an IC₅₀ of 4.64 µM on LPS-induced NO production in RAW 264.7 cells.