4-Hydroxyresveratrol (3,4,5,4'-Tetrahydroxystibene), a Resveratrol. HA14-1 is a Bcl-2/Bcl-xL antagonist with an IC50 of approximately 9 μM against Bcl-2.

4-Hydroxyisophthalic acid activates antioxidant enzymes (such as catalase CAT and superoxide dismutase SOD), scavenges free radicals, and exhibits antioxidant property. 4-Hydroxyisophthalic acid activates AChE and BChE, enhances neuronal function and improves Tau-induced neurobehavioral defects. 4-Hydroxyisophthalic acid improves the cognitive defects, and ameliorates circadian rhythm disorders of fruit flies.

4-Hydroxy-1-piperidinepropanamide is a PROTAC linker that can be used in the synthesis of PROTAC DDR1 degrader-1. Quinacainol dihydrochloride is an inhibitor for sodium current with an EC50 of 95 µM. Quinacainol dihydrochloride exhibits antiarrhythmic activity by affecting the electrophysiological properties of the heart.

4-Desmethyl-2-methyl celecoxib (Compound 1g) is an orally active and selective Cyclooxygenase-2 (COX-2) inhibitor with an IC50 value of 0.069 μM. 4-Desmethyl-2-methyl celecoxib shows anti-inflammatory, analgesic, and antipyretic activities. 4-Desmethyl-2-methyl celecoxib can reduces the synthesis of prostaglandins. 4-Desmethyl-2-methyl celecoxib is promising for research of inflammatory diseases and pain-related diseases, such as rheumatoid arthritis and osteoarthritis.

4ʹ-Chloro deschloroalprazolam is a benzodiazepine compound and is a derivative of alprazolam.

4,6,4'-Trihydroxy-3'-methoxyaurone is an herbicide. At concentrations of 100 and 1000 µg/mL, 4,6,4'-Trihydroxy-3'-methoxyaurone is able to inhibit the growth of rape root and barnyardgrass seedlings1.

4-(Azidomethyl)-L-phenylalanine is an unnatural amino acid with an azidomethyl group at position 4 of L-phenylalanine. 4-(Azidomethyl)-L-phenylalanine can be used as a reporter for probing protein hydration through addition of an azide group.

3-Penten-2-one (Ethylideneacetone) inhibits nitric oxide production and inducible nitric oxide synthase expression via heme oxygenase-1 induction in RAW264.7 macrophages activated with Lipopolysaccharides (LPS).

3-O-Demethylfortimicin A (A-49759) is an aminocyclitol antibiotic with antibacterial activity. 3-O-Demethylfortimicin A is particularly effective against Gram-negative pathogens and staphylococcus.

3'-Hydroxy stanozolol is a major metabolite of the anabolic androgenic steroid Stanozolol.

3'-Deoxy-GTP (3′-Deoxyguanosine 5′-triphosphate) trisodium, an analog of GTP, is a RNA chain terminator and suppresses RNA synthesis. 3'-Deoxy-GTP trisodium inhibits DENV NS5 RdRp (IC50: 0.02 μM).

3'-Deoxy-GTP (3′-Deoxyguanosine 5′-triphosphate), an analog of GTP, is a RNA chain terminator and suppresses RNA synthesis. 3'-Deoxy-GTP inhibits DENV NS5 RdRp (IC50: 0.02 μM).

3-Aminobenzene-1,2-diol (compound C8) is a matrix metalloproteinase (MMP) inhibitor with IC50 values ​​of 20, 26, 16 and 16.3 μM for MMP-2, MMP-8, MMP-9 and MMP-14, respectively.

36R-D481 is a competitive and orthosteric antagonist of IL-36R, effectively inhibiting IL-36 signaling. 36R-D481 can inhibit IL-36α and IL-36γ but not IL-36β induced IL-8 release.

3'-(2-Fluorophenyl) ezetimibe is an isomer of the cholesterol transport inhibitor Ezetimibe. DS86760016 is a potent leucyl-tRNA synthetase (LeuRS) inhibitor with activity against multidrug-resistant (MDR) Gram-negative bacteria, such as Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa.

2F-PYR-Pip-spiro[3.3]heptane-acid is a PROTAC linker. 2F-PYR-Pip-spiro[3.3]heptane-acid can be used in the synthesis of PROTACs.

28-Aminobetulin is a pentacyclic triterpenoid and a derivative of the cholesterol biosynthesis inhibitor Betulin.

25(S)-27-Hydroxy cholesterol is a metabolite of CYP27A1 mediated cholesterol hydroxylation. 25(S)-27-Hydroxy cholesterol inhibits melanoma cell proliferation.

20α-Dihydro prednisolone is a metabolite of Prednisolone. Clonidine is an alpha 2-adrenergic agonist.

20-Hydroxyvitamin D3 (20(OH)D3) is a hydroxy metabolite of vitamin D3. 20-Hydroxyvitamin D3 functions as a ligand for vitamin D receptor (VDR), aryl hydrocarbon receptor (AhR), liver X receptor (LXR), and retinoic acid-related orphan receptor (ROR). 20-Hydroxyvitamin D3 inhibits cell proliferation, induces differentiation. 20-Hydroxyvitamin D3 can be used for inflammatory and autoimmune diseases study.

2002-G12 (compound 5a) is an Aβ42 inhibitor that can reduce Aβ42 toxicity by 76%. 2002-G12 can be used in Alzheimer's research.

2-(3-Pyridyl)-benzimidazole is an Aminopyrine N-Demethylase inhibitor.

1-Boc-4-carboxymethyl piperazine is a PROTAC linker. 1-Boc-4-carboxymethyl piperazine can be used in the synthesis of PROTACs (e.g. PROTAC IRAK4 degrader-12 as the ligand for target protein.

19-Noretiocholanolone is an anabolic androgenic steroid metabolite of Nandrolone.

17β-Hydroxy exemestane (17-H-EXE) is the primary active metabolite of Exemestane.

16-Oxokahweol, a Kahweol derivative, is a glutathione S-transferase inducer.

16-Aminohexadecanoic acid is an alkane chain with terminal carboxlic acid and amine groups. 16-Aminohexadecanoic acid can be used as a PROTAC linker in the synthesis of PROTACs. The amino group (NH2) is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The terminal carboxylic acid can react with primary amine groups of activated NHS ester to form a stable amide bond.

13-Deoxycarminomycin is an antibiotic with antibacterial activity. 13-Deoxycarminomycin also exhibits cytotoxicity against tumor cells such as HeLa and P388, and can play an anti-tumor role.

13-cis-Vitamin A (13-cis-Vitamin A1) is the 13-cis-isomer of Vitamin A, which is an active metabolite found in butter.

1,3-Propanediol-SNS-032 is a target protein ligand and linker conjugate, which can be used for the synthesis of PROTAC CDK9 autophagic degrader 1.