1,5,5-Trimethylhydantoin (TMH) is a non-isotopic internal standard (IS)[1].
PYZD-4409 is a novel small molecule inhibitor of Ubiquitin-activating enzyme UBA1/E1 enzyme with an IC50 of 20 uM (cell-free enzymatic assay).IC50 Value: 20 uM (cell-free enzymatic assay) [1]Target: E1 enzyme (Ubiquitin-activating enzyme)in vitro: PYZD-4409 inhibited the ATP-dependent activation of ubiquitin and subsequent transfer of the activated ubiquitin from the E1 to the common human E2 enzyme UBE2E2 in a gel-based assay. The IC50 of inhibition was estimated to be 20μM in a cell-free enzymatic assay. Suggesting specificity of PYZD-4409 for the E1 enzyme, the compound had no effect on unrelated enzymes such as α-Mannosidase II glycosylation enzyme or Luciferase at concentrations up to 100μM (data not shown). It also did not inhibit the summo E1, Uba2, at concentrations up to 100μM. In 5 of 8 leukemia and myeloma cell lines, PYZD-4409 induced cell death with a LD50 less than 10μM. Myeloma cell lines were particularly sensitive to E1 inhibition because PYZD-4409 induced cell death with 3 of 4 myeloma cell lines (ie, LP1, KMS11, and U226) having an LD50 of 3μM or less. In contrast, solid tumor cell lines were less sensitive with an LD50 of approximately 15 to 20μM [1]. in vivo: SCID mice were injected subcutaneously with MDAY-D2 murine leukemia cells and then treated with PYZD-4409 (10 mg/kg) or buffer control intraperitoneally daily on alternate days over 8 days. Sixteen days after tumor implantation, the mice were killed, and the tumors excised and weighed. Compared with control-treated mice, treatment with PYZD-4409 delayed tumor growth and decreased tumor weight without untoward toxicity. Inhibition of the E1 can achieve an antitumor effect in vivo [1].
3-Amino-1,2,4-triazine is an inhibitor of NO synthase, and also inhibits nitrite secretion[1].
Lucinactant is a novel synthetic peptide that functionally mimics surfactant protein B, a protein with anti-inflammatory properties. Lucinactant is a KL4-Surfactant, protects human airway epithelium from hyperoxia[1][2][3].
Arecaidine hydrochloride, a pyridine alkaloid, is a potent GABA uptake inhibitor. Arecaidine hydrochloride is a substrate of H+-coupled amino acid transporter 1 (PAT1, SLC36A1) and competitively inhibits L-proline uptake[1][2].
Dihydroactinidiolide, existing in plant leaves and fruits, is a potent plant growth inhibitor, a regulator of gene expression and is responsible for photo acclimation in Arabidopsis. Dihydroactinidiolide has antioxidant activity, antibacterial activity, anticancer activity and neuroprotective effect[1].
NBD-557 is a potentially HIV-1 inhibitor.IC50 Value: Target: HIVNBD-557, is small molecule organic compounds with drug-like properties. It showed potent cell fusion and virus-cell fusion inhibitory activity at low micromolar levels. A systematic study showed that NBD-557 target viral entry by inhibiting the binding of HIV-1 envelope glycoprotein gp120 to the cellular receptor CD4 but did not inhibit reverse transcriptase, integrase, or protease, indicating that they do not target the later stages of the HIV-1 life cycle to inhibit HIV-1 infection. NBD-557 potent inhibitors of both X4 and R5 viruses tested in CXCR4 and CCR5 expressing cell lines, respectively, indicating that its anti-HIV-1 activity is not dependent on the coreceptor tropism of the virus. A surface plasmon resonance study, which measures binding affinity, clearly demonstrated that NBD-557 bind to unliganded HIV-1 gp120 but not to the cellular receptor CD4. NBD-557 was active against HIV-1 laboratory-adapted strains including an AZT-resistant strain and HIV-1 primary isolates, indicating that NBD-557 can potentially be further modified to become potent HIV-1 entry inhibitors.
ER-Tracker Blue-White DPX is a photostable probe used to selectively label the endoplasmic reticulum for fluorescence microscopy imaging[1].
Promegestone (R-5020), a progestin, is a potent progesterone receptor (PR) agonist. Promegestone has the potential for endocrine regulation and cancer research[1].
D-Glucuronamide is the derivate of D-glucuronic acid[1].
WWL123, a carbamate-based compound, is a potent and selective ABHD6 inhibitor. WWL123 can be used for research of inflammation, metabolic disorders (obesity and type II diabetes mellitus) and epilepsy[1].
BocNH-PEG5-CH2CH2Br is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs[1].
Tubulin inhibitor 8 (Compound 33b) is a tubulin inhibitor and a potent inhibitor of multiple cancer cell lines. Tubulin inhibitor 8 inhibits tubulin polymerization with an IC50 of 0.73 μM. Tubulin inhibitor 8 inhibits K562 cell growth with an IC50 of 14 nM[1].
Levobunolol (l-Bunolol) is a potent and nonselective β-adrenergic receptor antagonist. Levobunolol is an ocular hypotensive agent and lowers mean intraocular pressure (IOP). Levobunolol can be used for glaucoma and superior oblique myokymia (SOM) research[1][2][3].
Homoarbutin is a phenolic glycoside isolated from the whole plants of Pyrola japonica[1].
SJA710-6 is a small molecule able to selectively differentiate MSCs toward hepatocyte-like cells[1].
DL-3-Hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) disodium is a disodium salt compound of HMG-CoA, is a intermediate of terpenes and ketone bodies. DL-3-Hydroxy-3-methylglutaryl coenzyme A disodium also involves in ester metabolism in vivo, as a precursor for cholesterol synthesis, and regulates cholesterol synthesis by coupling LDL receptor[1][2].
Sulfobromophthalein (Bromosulfophthalein) disodium salt is an organic anion dye used in the study of a variety of membrane carriers expressed in animal tissues and involved in transport of drugs and metabolites[1].
COX-2/5-LOX-IN-1 (compound 3a) is a potent and dual inhibitor of COX-2/5-LOX. COX-2/5-LOX-IN-1 is a benzothiophen-2-yl pyrazole carboxylic acid derivative. COX-2/5-LOX-IN-1 shows the most potent analgesic and anti-inflammatory activities surpassing that of Celecoxib and Indomethacin. COX-2/5-LOX-IN-1 shows potent COX-1, COX-2 and 5-LOX inhibitory activity with IC50s of 12.13, 0.4 and 4.96 μM, respectively[1].
Phe-Met-Arg-Phe, amide acetate dose dependently (ED50=23 nM) activates a K+ current in the peptidergic caudodorsal neurons[1].
Gelsevirine is the major alkaloid in Gelsemium elegans with potent anxiolytic effects. The anxiolytic mechanism of Gelsevirine may be involved in the agonist action of the glycine receptor in the brain. Gelsevirine has anti-proliferation activity with IC50 values of 1.41 mM and 1.22 mM for SW480 cells and MGC80-3 cells, respectively[1][2][3].
Chlorpheniramine-d4 (maleate) is deuterium labeled Chlorpheniramine (maleate).
(S,R,S)-AHPC-Boc-trans-3-aminocyclobutanol-Pip-CH2COOH (VH032-Boc-trans-3-aminocyclobutanol-Pip-CH2COOH) is a E3 ligase ligand-linker conjugate that contains on one end a VHL ligand. (S,R,S)-AHPC-Boc-trans-3-aminocyclobutanol-Pip-CH2COOH is used in PROTAC technology[1].
Mal-AMCHC-N-Propargylamide is a click chemistry reagent containing an azide group. Mal-AMCHC-N-Propargylamide can be a bio-conjugation reagent for antibody-drug-conjugate synthesis using Click-Chemistry[1].
SF2523 is a highly selective and potent inhibitor of PI3K with IC50s of 34 nM, 158 nM, 9 nM, 241 nM and 280 nM for PI3Kα, PI3Kγ, DNA-PK, BRD4 and mTOR, respectively.
ACBI3 (compound 7) is a pan-KRAS degrader. ACBI3 achieves in vivo degradation of oncogenic KRAS[1].
Naltrindole hydrochloride is a highly potent and selective non-peptide δ opioid receptor antagonist with a Ki of 0.02 nM.
Fluazifop-P-butyl, a graminicide from arylophenoxypropionate group, is a acetyl-CoA carboxylase (ACCase) inhibitor[1].
ML355 is a potent and selective inhibitors of 12-Lipoxygenase(12-LOX) with IC50 of 0.34 μM, excellent selectivity over related lipoxygenases and cyclooxygenases, and possess favorable ADME properties.IC50 value: 0.34 μM [1]Target: 12-LOXML355 inhibits PAR-4 induced aggregation and calcium mobilization in human platelets and reduce 12-HETE in β-cells.
Antitumor agent-62 (Compound 47) is a NO-releasing antitumor agent. Antitumor agent-62 shows antiproliferative activity against four cancer cell lines. Antitumor agent-62 activates mitochondrial apoptosis pathway and arrests cell cycle at G2/M phase[1].