Reactive Oxygen Species (ROS) Inducer

Pyroptosis inducer-1 is a pyroptosis inducer. Pyroptosis inducer-1 promotes STING phosphorylation, NF-κB activation, caspase-1-dependent pyroptosis, GSDMD cleavage, mitochondrial membrane potential disruption, ROS production, S phase cell cycle arrest, ER stress, calcium release, and immunogenic cell death accompanied by CRT exposure, HMGB1 release, and ATP secretion. Pyroptosis inducer-1 enters cancer cells via endocytosis and accumulates in mitochondria and endoplasmic reticulum. Pyroptosis inducer-1 increases dendritic cells and CD8⁺ T cells while decreasing regulatory T cells. Pyroptosis inducer-1 can be used for breast cancer research.

Phaeosphaeride A is a STAT3 inhibitor with an IC₅₀ of 0.61 mM against human STAT3. It exhibits higher selectivity for STAT3 over STAT1 and STAT5. Phaeosphaeride A inhibits the binding of STAT3 to DNA, STAT3-dependent transcriptional activity, as well as IL-6-induced phosphorylation and signaling of STAT3. Phaeosphaeride A activates the JNK, p38, Akt, CREB and STAT5A/B signaling pathways. Phaeosphaeride A induces oxidative stress (ROS), exerts antiproliferative and growth-inhibitory effects in cancer cells, and shows low cytotoxicity toward non-cancerous cells. Phaeosphaeride A is a phytotoxin and a weak animal toxin, with no antimicrobial activity against tested bacteria and fungi. Phaeosphaeride A can be used in research related to conditions such as cervical cancer and multiple myeloma, as well as weed infestations.

Quinclorac (Standard) is the analytical standard of Quinclorac (HY-B0871). This product is intended for research and analytical applications. Quinclorac is a highly selective quinoline carboxylic acid synthetic auxin herbicide. Quinclorac weakly inhibits HPPD, accompanied by a transient decrease in carotenoids. Quinclorac upregulates ACC synthase (ACS), leading to the co-accumulation of ethylene and cyanide, while increasing the ABA/IAA ratio, which induces ROS burst, membrane lipid peroxidation (MDA) and lethal growth inhibition. Residual Quinclorac in soil can cause abnormal growth of subsequent tobacco crops. In calli of Phaseolus vulgaris, Quinclorac induces oxidative stress (increased MDA and decreased RGR), but cells after stepwise pressurized acclimation acquire a constitutive antioxidant state, which remains stable after de-acclimation and tolerates oxidative damage caused by Quinclorac. Quinclorac can be used in studies related to herbicide action mechanisms, bioremediation of soil residues, and adaptive responses of plant cells to oxidative stress.

Anti-MRSA agent 33 iodide is an anti-Methicillin (HY-121544)-resistant Staphylococcus aureus (MRSA) agent, with MIC values of 2-4 μg/mL. Anti-MRSA agent 33 iodide demonstrates effective biofilm eradication and minimal cytotoxicity toward mammalian cells. Anti-MRSA agent 33 iodide specifically binds to phosphatidylglycerol (PG) on bacterial membranes, leading to membrane disruption, excessive production of ROS, and metabolic collapse, ultimately resulting in bacterial cell death. Anti-MRSA agent 33 iodide reduces bacterial load in a murine skin infection model.

Calcium propionate, meets analytical specification of E282 (Standard) (Bioban-C, meets analytical specification of E282 (Standard)) is the analytical standard of Calcium propionate, meets analytical specification of E282 (HY-B1580A). This product is intended for research and analytical applications. Calcium propionate, meets analytical specification of E282 is a calcium salt of Propionic acid with oral activity, which can be hydrolyzed into propionate and calcium ions. Calcium propionate, meets analytical specification of E282 elevates intracellular ROS levels in tumor cells, depletes GSH, reduces mitochondrial membrane potential, and thereby induces tumor cell apoptosis. In mouse colitis models, Calcium propionate, meets analytical specification of E282 modulates inflammatory factors such as IFN-γ, calprotectin, and Pglyrp3, ameliorating intestinal inflammation and metabolic disorders. In ruminants, Calcium propionate, meets analytical specification of E282 serves as a gluconeogenic precursor, regulating rumen fermentation and microbial diversity; in high-fat diet rats, it alters gut microbiota composition and affects blood biochemical parameters. Calcium propionate, meets analytical specification of E282 is commonly used as a food and feed additive, and is also used in research related to hypocalcemia, dyslipidemia, colitis, and lung cancer.