sm 21

SM 21 is a sigma(2) antagonist.

SM 21 is an analgesic with a presynaptic cholinergic mode of action.

Increases release of acetylcholine,σ2 antagonist

SM21 is a highly potent antifungal agent (MIC = 0.2-1.6 µg/ml) with no toxic to various human cell lines or bacterial species in vitro and was active against Candida isolates that are resistant to existing antifungal agents.

Sorbic acid (Standard) is the standard substance of Sorbic acid, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Sorbic acid is a natural product that inhibits various bacteria, including sporeformers,

Bacopaside V (Standard) is a reference standard for research and analysis in studies involving Bacopaside V. Bacopaside V is a natural product

Bacopaside X (Standard) is a reference standard for research and analysis in studies involving Bacopaside X. Bacopaside X is a triterpenoid saponin isolated from Bacopa monniera that exhibits strong antifungal and anticancer activities by actively suppressing pathogenic fungal growth and tumor progression, demonstrated through inhibition of Candida albicans, Cryptococcus neoformans, and Aspergillus fumigatus at MIC values of 50 µg/ml, along with significantly decreasing proliferation in cancer cell lines MDA-MB-231, SHG44, HCT8, A549, and PC3M with IC50 values of 14.3, 15.9, 9.8, 9.7, and 10.1 µM respectively. Bacopaside X additionally reduces tumor growth by 84.13% in an S180 sarcoma mouse allograft model when administered at a dose of 50 µmol/kg, indicating substantial therapeutic potential.

Sparfloxacin (Standard) is the standard substance of Sparfloxacin, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Sparfloxacin (CI-978) is a fluoroquinolone antibiotic that inhibits bacterial DNA gyrase, thereby inhibiting DNA replication and transcription.

Spectinomycin dihydrochloride pentahydrate (Standard) is the standard substance of Spectinomycin dihydrochloride pentahydrate, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Spectinomycin dihydrochloride pentahydrate (Spectogard) is an antibiotic produced by Streptomyces spectabilis. It is active against gram-negative bacteria and used for the treatment of gonorrhea.

Spectinomycin sulfate hydrate (Standard) is the standard substance of Spectinomycin sulfate hydrate, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Spectinomycin sulfate hydrate is a broad-spectrum antibiotic capable of inhibiting the growth of various Gram-positive and Gram-negative bacteria. It targets bacterial ribosomes specifically, thereby disrupting protein synthesis. Additionally, spectinomycin sulfate hydrate acts as a non-competitive inhibitor of td intron RNA, with a Ki of 7.2 mM.

Spermidine trihydrochloride (Standard) is the standard substance of Spermidine trihydrochloride, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Spermidine trihydrochloride (4-Azaoctamethylenediamine trihydrochloride), a natural polyamine, is a novel autophagy inducer and negatively modulates N-methyl-d-aspartate (NMDA).

Spermine (Standard) is the standard substance of Spermine, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Spermine (Neuridine) is a biogenic polyamine formed from spermidine. It is found in a wide variety of organisms and tissues and is an essential growth factor in some bacteria.

Pseudoginsenoside RT5 (Standard) is a reference standard for research and analysis in studies involving Pseudoginsenoside RT5. 1. Pseudoginsenoside RT5 has anti-epilepsy, anti-depressant activity by promoting nerve growth and improve cognitive ability. 2. Pseudoginsenoside RT5 has anti-bacterial, anti-tumor and anti-malaria activities.

Spermine tetrahydrochloride (Standard) is the standard substance of Spermine tetrahydrochloride, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Spermine tetrahydrochloride (Musculamine tetrahydrochloride) is a polyamine involved in cellular metabolism found in all eukaryotic cells. It is a major natural intracellular compound capable of protecting DNA from free radical attack.

Spinosad (Standard) is the standard substance of Spinosad, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Spinosad is a naturally-occurring insecticide found in the the soil bacterium S. spinosa. It is a mixture of the macrocyclic lactones spinosyn A and spinosyn D, which act as agonists of insect nicotinic acetylcholinesterase receptors (nAChRs).

Spiramycin (Standard) is the standard substance of Spiramycin, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Spiramycin (Rovamycin) is a macrolide antibiotic produced by Streptomyces ambofaciens. The drug is effective against gram-positive aerobic pathogens, N. gonorrhoeae, and staphylococci. It is used to treat infections caused by bacteria and Toxoplasma gondii.

Spiromesifen (Standard) is the standard substance of Spiromesifen, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Spiromesifen is a useful miticide and insecticide in plant breeding. It is particuarly useful against spider mites and whiteflies in vitro.

Spirotetramat (Standard) is an analytical standard substance, typically employed as a reference sample for research and analysis of Spirotetramat. Spirotetramat (BY-108330) is an insecticide effective against aphids.

Spiroxamine (Standard) is the standard substance of Spiroxamine, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Spiroxamine is a tertiary amine fungicide and an inhibitor of δ14 reductase and δ8→δ7 isomerase. Spiroxamine inhibits the growth of N. parvum, B. dothidea, D. seriata, and L. theobromae isolates from grape vines.

Squalane (Standard) is the standard substance of Squalane, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Squalane is a lipid found in some fish oils (especially shark liver oil) and some vegetable oils. It has anticancer and antioxidant properties and is used as a skin moisturizer and emollient.

Squalene (Standard) is the standard substance of Squalene, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Squalene (AddaVax) is an intermediate in cholesterol synthesis. Squalene has a variety of pharmacological properties, such as antilipemic, hepatoprotective, anti-atherosclerotic, cardioprotective, antioxidant, antitumor and antifungal.

ST029248 (Standard) is the standard substance of ST029248, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. ST029248 is a potent mast cell (MC) activator, promoting de novo synthesis of cytokines and inducing the release of eicosanoids from human and mouse MCs.

Stachyose (Standard) is the standard substance of Stachyose, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Stachyose is an oligosaccharide that inhibits the proliferation of vancomycin-resistant enterococci.Stachyose regulates the intestinal microbiota and attenuates dextran sulfate sodium-induced acute colitis in mice.

Stearic acid (Standard) is the standard substance of Stearic acid, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. 1. Stearic acid (Cetylacetic acid) can reduce metastatic tumor burden. 2. Stearic acid leads to dramatically reduced visceral fat likely by causing the apoptosis of preadipocytes. 3. Stearic acid and its derivatives have been used as gelators in food and pharmaceutical gel formulations. 4. Stearic acid is a potent phosphatase 1B inhibitor, possibly causing an enhancement in the insulin receptor signaling to stimulate glucose uptake into adipocytes. 5. Stearic acid has the potential to increase dry matter intake and yields of milk and milk components, without affecting conversion of feed to milk, body condition score, or body weight.