5S rRNA modificator is a suitable electrophile for 2’-hydroxyl acylation on structured RNA molecules, yielding accurate structural information comparable to that obtained with existing probes; 5S rRNA RNA modification.

5-R-Rivaroxaban is (R) enantiomer of Rivaroxaban.

5-NITP (5-nitro-indolyl-2'-deoxyribose triphosphate) is a non-natural nucleotide that inhibits ribonucleotide reductase (hRR) with IC50 of 170 uM, demonstrates anti-cancer effects against leukemia cells by altering cell-cycle progression..

5-NIdR (5-nitro-indolyl-2'-deoxynucleoside) is a non-natural nucleotide produces cytostatic and cytotoxic effects against human leukemia cells by altering cell-cycle progression.

5MPN a first-in-class, selective, competitive, orally available inhibitor of PFKFB4 with Ki of 8.6 uM, does not inhibit PFK-1 or PFKFB3.

5-Methoxyflavone, belonged to Flavonoid family, is a DNA polymerase-beta inhibitor and neuroprotective agent against beta-amyloid toxicity. possess central nervous system (CNS) depressant effect mediated through the ionotropic GABAA receptors.

5'-GTP trisodium salt hydrate is an activator of the signal transducing G proteins and also serves as an energy-rich precursor of mononucleotide units in the enzymatic biosynthesis of DNA and RNA.

5-bromoindole is an important pharmaceutical chemical intermediate and a potential inhibitor of glycogen synthase kinase 3 (GSK-3).

5-Aminolevulinic acid HCl

5,6-Dihydro-5-azacytidine|cas 62488-57-7

4-Hydroxyquinazoline is a PARP inhibitor with a high potency for PARP-1 and no effects on enzymes other than PARP.

4-Chloro-α-cyanocinnamic acid (α-CHCA) is a classic monocarboxylate transporters (MCT) inhibitor. α-cyano-4-hydroxycinnamate (CHC) has a 10-fold selectivity for MCT1 compared to other MCTs.

4-BBPB maleate is a highly potent agonist of σ1 receptor with Ki of 0.8 nM.

3-Methyl-2-oxovaleric acid is a neurotoxin, an acidogen, and a metabotoxin, and also an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids.

3-Methoxyphenylacetic acid is a monocarboxylic acid.

3-Indolebutyric acid (IBA)

3-Ethoxy-5,6-dibromosalicylaldehyde is a potent and selective inhibitor of IRE1 endoribonuclease with IC50 of 0.12 uM.

3-Deazaadenosine (hydrochloride) is an inhibitor of S-adenosylhomocysteine hydrolase, with a Ki of 3.9 µM; 3-Deazaadenosine has anti-inflammatory, anti-proliferative and anti-HIV activity.

3-Cyanochromone is a potent gram-negative bacteria WcbL protein inhibitor with IC50 of 28 uM in a competitive enzyme-inhibition model, shows inhibition constants Ki of 10 uM..

3b-Hydroxy-5-cholenoic acid is a monohydroxy bile acid of endogenous origin and could be found in children with the syndrome of hepatic ductular hypoplasia.

3-Acetylaconitine, aconitine, and deoxyaconitine are main toxic components of the roots of Aconitum pendulum.

3,4-Dicaffeoylquinic acid (3,4-DCQA) is a polyphenol with diverse biological activities.

2-Phenyl-2-(1-piperidinyl)propane is an analog of phencyclidine that acts as a mechanism-based inactivator of human cytochrome P450 (CYP) 2B6 (Ki = 5.6 µM; IC50 = 5.1 µM).

2''-O-Rhamnosylicariside II is a flavonoid glycoside compound and might be beneficial for improving postmenopausal osteoporosis.

2-mercaptoethane sulfonate (Mesna), is a synthetic small molecule, widely used as a systemic protective agent against chemotherapy toxicity, but is primarily used to reduce hemorrhagic cystitis induced by cyclophosphamide.

2-cyano-Pyrimidine is a cathepsin K inhibitor with an IC50 of 170 nM.

2-Aminoethanethiol (cysteamine) is a radiation-protective agent that oxidizes in air to form cystamine.

22-Azacholesterol is the first small molecule inhibitor that inhibits Hedgehog (Hh) signaling by binding the oxysterol-binding site of Smo, inhibits Sonic Hedgehog (Shh) signaling with IC50 of 3 uM in NIH-3T3 cells..

20(S)-Hydroxycholesterol is an allosteric activator of the Hedgehog signaling pathway Smoothened (Smo) oncoprotein, binds at a site distinct from the canonical cyclopamine binding site.

2-(Pyridyldithio)ethylamine hydrochloride is a novel disulfideintercalating cross-linking reagent.