Barringtogenol C (Theasapogenol B) is one of seeds sapogenols of Thea sinensis L. Barringtogenol C is a type of barrigenol triterpenoid. Barringtogenol C derivatives exhibits antitumor activity.

AURKA-IN-4 (compound 13), a capsaicin-derived prohibitin ligand, is an AURKA inhibitor. AURKA-IN-4 acts as a molecular glue within the AURKA/PHB2/LC3 complex. AURKA-IN-4 is specific to the mitochondrial pool of AURKA, and inhibits AURKA-dependent mitophagy. AURKA-IN-4 can be used for cancer research.

ATR ligand 2 (Compound 26) is a ATR PROTAC ligand. ATR ligand 2 can be conjugated with E3 ligase Ligand and linker to synthesize PROTAC ATR degrader-3.

Atiprosine (AY-28228) is an orally effective selective α1-adrenergic receptor antagonist with a pA2 value of 8.11. Atiprosine exhibits antagonistic activity against α2-adrenergic receptors (α1-adrenergic receptor), 5-HT₂ receptors (5-HT₂ receptor), and H₁ receptors (H₁ receptor). The pA2 values for these receptors are 6.04, 6.87, and 7.32 respectively. Atiprosine has antihypertensive and hypotensive effects in rats, dogs, and monkeys. It can be used for research on cardiovascular and mental disorders.

Arucadiol is a rosane-type diterpenoid anti-inflammatory agent. 5 μM Arucadiol significantly inhibits LPS-induced TNF-α, IL-1β, and IL-8 production (inhibition rates of 39.8%, 44.4%, and 34.5%, respectively). Arucadiol exerts its anti-inflammatory activity by inhibiting the mRNA and protein expression of inflammatory cytokines and can be used in research on inflammation-related cardiovascular diseases such as atherosclerosis. Arucadiol can be naturally extracted from the roots of Salvia miltiorrhiza var. alba.

Aristoforin, a hypericin derivative, inhibits the activities of SIRT1 and SIRT2. Aristoforin induces G1 phase cell cycle arrest, scavenges hydroxyl free radicals, and exhibits protective activity against Fe2+-induced DNA breakage. Aristoforin can be used in studies related to breast cancer and colon adenocarcinoma.

Argimesna ethanesulfonate is a uroprotective agent. Argimesna ethanesulfonate is promising for research of hemorrhagic cystitis in cancer chemotherapy.

ARCA (Anti-Reverse cap analog) is a 5′- cap analogue. ARCA caps mRNA. ARCA can be used in protein expression studies.

APD-209 is a sialic acid conjugate with a PEG4 polar linker and a PDA non-polar tail. APD-209 aggregates adenovirus type 37 particles, blocks the binding of viral particles to human corneal epithelial cells, and inhibits cellular entry of adenovirus type 37. APD-209 can be used for the research of epidemic keratoconjunctivitis.

Antiviral agent 80 is a conjugate of Zanamivir and Amantadine, acting as a dual inhibitor of influenza virus M2 ion channel/neuraminidase (NA). Antiviral agent 80 exhibits potent inhibitory activity against both wild-type and drug-resistant influenza neuraminidase mutants, with an IC50 value range of 1.50 nM to 120.4 nM. Antiviral agent 80 can be used in influenza-related research.

Antitumor agent-210 (Compound 1778) is an NK cell activator. Antitumor agent-210 has a weak proliferative effect on NK92 cells, promoting the activation and degranulation of NK cells, and significantly enhancing the cytotoxicity of NK92 cells against tumor cells. Antitumor agent-210 promotes the release of cytokine granzyme B, perforin, and IFN-γ. Antitumor agent-210 reduces the number of lung metastatic lesions in mice and can be used for the study of melanoma lung metastasis.

Antiparasitic agent-37 (Compound 4717) is an orally active antiparasitic agent. Antiparasitic agent-37 exhibits activity against S. mansoni in mice. Antiparasitic agent-37 has an oral LD50 of 0.4 g/kg in mice after a single dose. Antiparasitic agent-37 can be used for the research of infectious diseases.

Anti-MRSA agent 37 (Compound 5B) is an antibacterial agent against methicillin-resistant Staphylococcus aureus (MRSA) (MIC=0.25-0.5 μg/mL). Anti-MRSA agent 37 inhibits biofilm formation, disrupts cell wall integrit, attacks cell membrane and induces oxidative stress. Anti-MRSA agent 37 is promising for research of MRSA-related diseases such as skin infections.

Amocarzine (CGP 6140) is an orally active antifilarial agent. Amocarzine can result in the swelling of mitochondrion and inhibit respiration and other associated metabolic functions. Amocarzine can be used for the research of infection.

AL-321 is an insulin sensitizer. AL-321 exhibits significant hypoglycemic and hypolipidemic activities in insulin resistance models. AL-321 can be used in the research of hereditary obesity-related diabetes.

AJ-3941 is an orally active cerebrovascular-selective Calcium Channel antagonist having anti-lipid peroxidative action. AJ-3941 can ameliorate the brain infarction and edema after permanent focal cerebral ischemia.

Aclatonium napadisylate is a cholinergic agonist. Aclatonium napadisylate can increase amylase release and Ca2+ efflux. Aclatonium napadisylate can stimulate pancreatic exocrine secretion and increase motility and peristalsis of the gastrointestinal tract. Aclatonium napadisylate can be used for the research of gastrointestinal disorders.

ABC transporter modulator-2 (Compound I-200) is a ABC transporter expression modulator. ABC transporter modulator-2 upregulates the expression of wild-type ABCC6 with an EC50 of <1 μM. ABC transporter modulator-2 upregulates the expression of wild-type ABCB4 with an EC50 of <1 μM. ABC transporter modulator-2 upregulates the expression of wild-type ABCD2 with an EC50 of <1 μM. ABC transporter modulator-2 upregulates the expression of the ABCA4P1380L mutant with an EC50 of <1 μM. ABC transporter modulator-2 can be used in the research of diseases associated with ABC transporter dysfunction.

ABC transporter modulator-1 (Compound I-5) is an ABC transporter expression enhancer. ABCC6 modulator-1 upregulates the expression of wild-type ABCC6, wild-type ABCB4, and ABCA4P1380L mutant, with an EC50 of <1 μM for all.

9-Thiastearic acid is a fatty acid.

9(Z),12(E)-Octadecadienoic acid is an unsaturated fatty acid.

8.7 MAG acts as a detergent for crystallization.

8(R)-HPODE (8(R)-Hydroperoxylinoleic acid) is a metabolite obtained from the metabolism of Linoleic acid by Gaeumannomyces graminis.

6-hydroxy-FAD is the dominant cofactor of H. insolens Cellobiose dehydrogenases. the activity of Cellobiose dehydrogenases containing 6-hydroxy-FAD is lower than that of the enzyme reconstituted with normal FAD.

5-trans Prostaglandin D2 is a prostaglandin D2 receptor agonist.

5-CNAC disodium is an orally active enhancer of absorption, with no pharmacological activity on its own. 5-CNAC disodium can significantly enhance the absorption efficiency of the drug (such as Salmon calcitonin) when administered together with it in the gastrointestinal tract. 5-CNAC disodium binds reversibly and non-covalently to peptide drugs, protecting them from degradation by gastrointestinal enzymes, increasing their lipid solubility, promoting passive transcellular absorption, and not damaging the integrity of the intestinal epithelium. 5-CNAC disodium can be used in the research of adjuvants for orally administered peptide agents.

4-Nitrophthalic acid is a metal-organic framework (MOF).

4-Methylbenzyl cyanide is an organic chemical probe used to study intramolecular rotation properties. 4-Methylbenzyl cyanide is promising for research of NMR spectroscopy and physical chemistry research on molecular dynamics.

4-Methyl-3-hydroxyanthranilic acid (MHA) is a key precursor for the synthesis of Actinomycin D.

4-Methoxyphthalic acid is a metal-organic framework (MOF).