Drug Components Standards

Levofloxacin (Standard) is the analytical standard of Levofloxacin. This product is intended for research and analytical applications. Levofloxacin ((-)-Ofloxacin) is an orally active antibiotic and is active against both Gram-positive and Gram-negative bacteria. Levofloxacin inhibits the DNA gyrase and topoisomerase IV. Levofloxacin can be used for chronic periodontitis, airway inflammation and BK Viremia research. Levofloxacin shows anti-orthopoxvirus activity.

Metformin hydrochloride (Standard) is the analytical standard of Metformin hydrochloride (HY-17471A). This product is intended for research and analytical applications. Metformin (1,1-Dimethylbiguanide) hydrochloride inhibits the mitochondrial respiratory chain in the liver, leading to AMPK activation and enhancing insulin sensitivity, and can be used in the study of type 2 diabetes. Metformin hydrochloride exerts central glucose-lowering effects by inhibiting Ras-related protein 1 (Rap1) in SF1 hypothalamic neurons. Metformin hydrochloride also inhibits liver oxidative stress, nitrosative stress, inflammation, and apoptosis caused by liver ischemia/reperfusion injury. In addition, Metformin hydrochloride regulates the expression of autophagy-related proteins by activating AMPK and inhibiting the mTOR signaling pathway, thereby inducing tumor cell autophagy and inhibiting the growth of renal cell carcinoma in vitro and in vivo.

L-Aspartic acid (Standard) is the analytical standard of L-Aspartic acid (HY-N0666). This product is intended for research and analytical applications. L-Aspartic acid is a NMDA receptor agonist and acidic amino acid. L-Aspartic acid has no independent analgesic activity. L-Aspartic acid can antagonize the analgesic effects of D-Aspartic acid and Morphine. L-Aspartic acid regulates polymorph transformation, crystal growth/aggregation and nucleation processes of calcium carbonate, and can serve as a biomineralization template. L-Aspartic acid promotes burst firing of central neurons. L-Aspartic acid can be used in studies related to cerebral ischemia and epilepsy.

Pirfenidone (Standard) is the analytical standard of Pirfenidone. This product is intended for research and analytical applications. Pirfenidone (AMR69) is an antifibrotic agent that attenuates CCL2 and CCL12 production in fibrocyte cells. Pirfenidone has growth-inhibitory effect and reduces TGF-β2 protein levels in human glioma cell lines. Pirfenidone also has anti-inflammatory activities.

5-Fluorouracil (Standard) is the analytical standard of 5-Fluorouracil. This product is intended for research and analytical applications. 5-Fluorouracil (5-FU) is an analogue of uracil and a potent antitumor agent. 5-Fluorouracil affects pyrimidine synthesis by inhibiting thymidylate synthetase thus depleting intracellular dTTP pools. 5-Fluorouracil induces apoptosis and can be used as a chemical sensitizer. 5-Fluorouracil also inhibits HIV.

Vorinostat (Standard) is the analytical standard of Vorinostat. This product is intended for research and analytical applications. Vorinostat (SAHA) is a potent and orally active pan-inhibitor of HDAC1, HDAC2 and HDAC3 (Class I), HDAC6 and HDAC7 (Class II) and HDAC11 (Class IV), with ID₅₀ values of 10 nM and 20 nM for HDAC1 and HDAC3, respectively. Vorinostat induces cell apoptosis. Vorinostat is also an effective inhibitor of human papillomaviruse (HPV)-18 DNA amplification.

i-Inositol (Standard) is the analytical standard of i-Inositol. This product is intended for research and analytical applications. i-Inositol (myo-Inositol) is a compound of sugar alcohols. i-Inositol is involved in a series of biological processes such as insulin signal transduction and cytoskeletal transduction. i-Inositol mainly exists in glial cells and plays an osmotic role.

Venetoclax (Standard) is the analytical standard of Venetoclax. This product is intended for research and analytical applications. Venetoclax (ABT-199; GDC-0199) is a highly potent, selective and orally bioavailable Bcl-2 inhibitor with a K_i of less than 0.01 nM. Venetoclax induces autophagy.

Lovastatin (Standard) is the analytical standard of Lovastatin. This product is intended for research and analytical applications. Lovastatin is a cell-permeable HMG-CoA reductase inhibitor used to lower cholesterol.

Cholic acid (Standard) is the analytical standard of Cholic acid. This product is intended for research and analytical applications. Cholic acid is a major primary bile acid produced in the liver and usually conjugated with glycine or taurine. It facilitates fat absorption and cholesterol excretion. Cholic acid is orally active.

Inosine (Standard) is the analytical standard of Inosine. This product is intended for research and analytical applications. Inosine is an endogenous purine nucleoside produced by catabolism of adenosine. Inosine has anti-inflammatory, antinociceptive, immunomodulatory and neuroprotective effects. Inosine is an agonist for adenosine A₁ (A₁R) and A_2A (A_2AR) receptors. In Vitro:Inosine dose-dependently stimulates cAMP production mediated through the A_2AR.
Inosine dose-dependently induces hA_2AR-mediated ERK1/2 phosphorylation.
Inosine (100 μM; 24 hours) reduces oxidative stress in MES 23.5 cells cultured with astrocytes.
In Vivo:Inosine (10-100 mg/kg; i.p.) exhibits antinociceptive effect in mice.

Lactic acid (Standard) (DL-Lactic acid (Standard)) is the analytical standard of Lactic acid (HY-B2227). This product is intended for research and analytical applications. Lactic acid (DL-Lactic acid) is a hydroxycarboxylic acid receptor 1 (HCAR1) activator and an epigenetic modulator inducing lysine residues lactylation. Lactic acid is a glycolysis end-product, bridging the gap between glycolysis and oxidative phosphorylation. Lactic acid is an oncometabolite and has immune protective role of lactate in anti-tumor immunity. Lactic acid also has antimicrobial activity, which can be used as a food preservative.

Probenecid (Standard) is the analytical standard of Probenecid. This product is intended for research and analytical applications. Probenecid is a potent and selective agonist of transient receptor potential vanilloid 2 (TRPV2) channels. Probenecid also inhibits pannexin 1 channels.

Tolbutamide (Standard) is the analytical standard of Tolbutamide. This product is intended for research and analytical applications. Tolbutamide is an orally active K_ATP inhibitor. Tolbutamide inhibits cell proliferation, stimulates exocytosis of glucagon and reduces fetal lethality of mice. Tolbutamide can be used in the research of diabete.

Chloramphenicol (Standard) is the analytical standard of Chloramphenicol. This product is intended for research and analytical applications. Chloramphenicol is an orally active, potent and broad-spectrum antibiotic. Chloramphenicol shows antibacterial activity. Chloramphenicol represses the oxygen-labile transcription factor and hypoxia inducible factor-1 alpha (HIF-1α) in hypoxic A549 and H1299 cells. Chloramphenicol suppresses the mRNA levels of vascular endothelial growth factor (VEGF) and glucose transporter 1, eventually decreasing VEGF release. Chloramphenicol can be used for anaerobic infections and lung cancer research.

Rosiglitazone (Standard) is the analytical standard of Rosiglitazone. This product is intended for research and analytical applications. Rosiglitazone (BRL 49653) is an orally active selective PPARγ agonist (EC₅₀: 60 nM, K_d: 40 nM). Rosiglitazone is an TRPC5 activator (EC₅₀: 30 μM) and TRPM3 inhibitor. Rosiglitazone can be used in the research of obesity and diabetes, senescence, ovarian cancer.

Palbociclib (Standard) is the analytical standard of Palbociclib. This product is intended for research and analytical applications. Palbociclib (PD 0332991) is an orally active selective CDK4 and CDK6 inhibitor with IC₅₀ values of 11 and 16 nM, respectively. Palbociclib has potent anti-proliferative activity and induces cell cycle arrest in cancer cells, which can be used in the research of HR-positive and HER2-negative breast cancer and hepatocellular carcinoma.

Daidzein (Standard) is the analytical standard of Daidzein. This product is intended for research and analytical applications. Daidzein is a soy isoflavone, which acts as a PPAR activator.

Deferoxamine (mesylate) (Standard) is the analytical standard of Deferoxamine (mesylate). This product is intended for research and analytical applications. Deferoxamine mesylate (Deferoxamine B mesylate) is an iron chelator (binds to Fe(III) and many other metal cations), is widely used to reduce iron accumulation and deposition in tissues. Deferoxamine mesylate upregulates HIF-1α levels with good antioxidant activity. Deferoxamine mesylate also shows anti-proliferative activity, can induce apoptosis and autophagy in cancer cells. Deferoxamine mesylate can be used in studies of diabetes, neurodegenerative diseases as well as anti-cancer and anti-COVID-19.

Rifampicin (Standard) is the analytical standard of Rifampicin. This product is intended for research and analytical applications. Rifampicin is a potent and broad spectrum antibiotic against bacterial pathogens. Rifampicin has anti-influenza virus activities. Rifampicin shows anti-orthopoxvirus activity.