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<p>1-Pyrenamine is a polycyclic aromatic hydrocarbon (PAH) derivative commonly used as a catalyst carrier in methanol batteries</p>

<p>3-Hydroxy-4-methylbenzoic acid is a benzoic acid derivative widely used in biochemical experiments and drug synthesis research.</p>

<p>Butyramide is a fatty amide widely used in biochemical experiments and drug synthesis research.</p>

<p>2-Methyl-2-hexanol is a branched-chain fatty alcohol and tertiary alcohol compound widely used in biochemical experiments and drug synthesis research.</p>

<p>Lactic acid Lithium is a compound of lithium salt with lactic acid, which can be used for related research in the life sciences.</p>

<p>N-Caproicacid sodium is a highly pure biochemical reagent that acts as an agonist for Hydroxycarboxylic acid receptor 2 (EC50=113 μM).</p>

<p>DL-Ornithine hydrochloride is the hydrochloride salt form of DL-ornithine. It can serve as a potent supplement, influencing the secretion of anabolic hormones, fuel supply during exercise, stress-related mental performance, and preventing exercise-induced muscle damage.</p>

<p>4-Hydroxyclonidine is a metabolite of Clonidine. It is equally effective as Clonidine in displacing labeled Clonidine from antibodies.</p>

<p>DBCO-PEG4-Val-Cit-PAB-PNP is a cleavable ADC linker where Val-Cit is specifically cleaved by Cathepsin B. The PNP group can be substituted by amine-containing payloads, and DBCO undergoes click chemistry reactions with azide molecules.</p>

<p>Mal-Amide-PEG4-Val-Cit-PAB-PNP is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs).</p>

<p>C14-490 is an ionizable cationic lipid (pKa= 5.94) utilized in the synthesis of lipid nanoparticles (LNPs). These LNPs serve as a platform for subsequent gene editing studies in hematopoietic stem cells (HSCs) in utero. C14-490 LNPs encapsulate SpCas9 mRNA and TTR sgRNA, employing an optimized B5 formulation parameter, and are further enhanced by the surface attachment of CD45 antibody F(ab’)2 fragments to create Systemically Targeted Editing Mechanism LNPs (STEM LNPs).</p>

<p>Fmoc-PEG6-Val-Cit-PAB-OH is a cleavable ADC linker featuring a Boc-protected amine, a hydrophilic PEG spacer, and a Val-Cit-PAB dipeptide. The benzyl alcohol on PAB can be utilized to attach reactive groups (e.g., PNP) for drug payload conjugation. The Fmoc protecting group is removable with piperidine, revealing a primary amine for amide bond formation in conjugation reactions. The Val-Cit-PAB segment is cleaved by cellular proteases, enabling efficient payload release into cells.</p>

<p>OSI-413 (free base) (CP 373413) is the primary metabolite of Erlotinib. Erlotinib (CP-358774) acts as a direct EGFR tyrosine kinase inhibitor with an IC50 of 2 nM against human EGFR.</p>

<p>Mal-amide-PEG8-Val-Cit-PAB-PNP is a cleavable ADC linker comprising a maleimide group, a PEG spacer, a Val-Cit dipeptide, PAB, and a PNP carbonate. The maleimide serves as a thiol-specific covalent connector for labeling cysteine residues in proteins, whereas the PNP group acts as a highly reactive leaving group. The Val-Cit linker is cleaved by cytoplasmic peptidases.</p>

<p>Mc-d-Val-d-Cit-PAB-PNP is a cleavable (cleavable) ADC linker employed in the synthesis of antibody-drug conjugates (ADCs).</p>

<p>Mal-amide-PEG8-Val-Cit-PAB-OH is a cleavable ADC linker, featuring a maleimide group, a hydrophilic PEG spacer, a Val-Cit dipeptide, and a PAB moiety. The maleimide group allows covalent bonding to free thiols on cysteine residues of proteins. The Val-Cit dipeptide is cleaved intracellularly by cathepsins to facilitate payload delivery via the PAB structure.</p>

<p>Fmoc-PEG2-Val-Cit-PAB-OH is a cleavable ADC linker that features a Boc-protected amine, hydrophilic PEG spacer, and a Val-Cit-PAB dipeptide. The benzyl alcohol on the PAB can be used for conjugating reactive groups (e.g., PNP) to attach a payload. The Fmoc protecting group is removable with piperidine, revealing a primary amine for amide bond formation in conjugation reactions. The Val-Cit-PAB segment is cleaved by cellular proteases to efficiently release the payload inside cells.</p>

<p>Buspirone N-oxide (Bu N-oxide) is a metabolite of Buspirone. Buspirone is an orally active 5-HT1A receptor agonist and a dopamine D2 (dopamine D2) autoreceptor antagonist. It is an anxiolytic agent used for research in generalized anxiety disorder.</p>

<p>7-Hydroxyrisperidone (7-RispOH) is a metabolite of Risperidone. Risperidone acts as a 5-HT2 receptor blocker, an inhibitor of P-glycoprotein (P-Glycoprotein), and an antagonist of the dopamine D2 receptor.</p>

<p>NH2-PEG3-Val-Cit-PAB-OH is a cleavable ADC (antibody-drug conjugate) linker characterized by a primary amine, a hydrophilic PEG spacer, a Val-Cit dipeptide, and a PAB group. The benzyl alcohol on PAB facilitates conjugation with reactive groups like PNP, enabling attachment to drug payloads. The primary amine readily participates in various reactions such as coupling with carboxylic acids, reductive amination with ketones or aldehydes, and other specialized applications like SNAr reactions or heterocyclic chemistry. The Val-Cit dipeptide is cleaved by intracellular proteases, allowing efficient payload delivery through an elimination mechanism within the PAB structure.</p>

<p>Boc-Gly-Gly-Gly-Gly-Gly is a protease-cleavable ADC linker with a Boc group at the N-terminus, utilized in the development of antibody-drug conjugates (ADC). The Boc group can be deprotected under mild acidic conditions, resulting in a free amine.</p>

<p>Thalidomide-CH2NH2 hydrochloride is an analog of Thalidomide, characterized by a primary amine group. This primary amine is a versatile functional group that can participate in numerous reactions.</p>

<p>Mal-amido-PEG8-Val-Gly is an ADC linker containing a maleimide moiety.</p>

<p>Boc-PEG2-Val-Cit-PAB-OH is an enzymatically cleavable ADC linker featuring a Boc-protected amine, a hydrophilic PEG spacer, and a Val-Cit-PAB dipeptide. The benzyl alcohol on PAB can be utilized for attachment to reactive groups (such as PNP) to connect with a drug payload. The Boc protecting group can be removed with acid, revealing a primary amine that serves for coupling reactions to form an amide. The Val-Cit-PAB segment is cleaved by cellular proteases, facilitating the effective release of the payload inside the cell.</p>

<p>PD-224378 is the lactam form of glycamine (β-isomer), produced through a Maillard reaction between pregabalin and lactose.</p>

<p>t-Boc-N-amido-PEG4-Val-Cit is a protease-cleavable ADC linker, featuring a Boc-protected amine, a hydrophilic PEG spacer, and a Val-Cit dipeptide. The Val-Cit dipeptide is susceptible to cleavage by cellular proteases and contains a free carboxylic acid that can couple with amines to form amides. The Boc group can be removed under acidic conditions to reveal a free primary amine, which is useful for various reactions, such as conjugation or reductive amination.</p>

<p>Rivaroxabandiol is a metabolite of Rivaroxaban, which is a potent and selective direct inhibitor of coagulation factor Xa (FXa) with an IC50 of 0.7 nM and a Ki of 0.4 nM.</p>

<p>PSI-7410 is a metabolite of PSI-7851. PSI-7851 acts as an inhibitor of the HCV non-structural protein 5B (NS5B) and exhibits antiviral properties.</p>

<p>4-(4-Bromophenyl)-4-hydroxypiperidine (BPHP) is a metabolite of Bromperidol (BRO), produced through the N-dealkylation of BRO.</p>

<p>(Rac)-8-Hydroxy-efavirenz is a metabolite of Efavirenz, a non-nucleoside reverse transcriptase inhibitor (NNRTI) used in the treatment of HIV-1.</p>

<p>DOSPA hydrochloride is a cationic lipid utilized in the formation of lipid nanoparticles.</p>

<p>Benzyl N1-[PEG1-NHS]-N6-(t-Boc)-L-lysinate is a versatile ADC linker composed of a terminal benzyl group, a PEG unit, an NHS ester, and L-lysine protected with a t-Boc group. It is frequently utilized in research and development for bioconjugation and chemical modification.</p>

<p>NH2-PEG4-Val-Cit-PAB-OH is a cleavable ADC linker that features a primary amine, a hydrophilic PEG spacer, a Val-Cit dipeptide, and a PAB group. The benzyl alcohol on the PAB component is suitable for attaching reactive groups (such as PNP) to facilitate binding with drug payloads. The primary amine is versatile for reactions such as coupling with carboxylic acids, reductive amination with ketones or aldehydes, or other specialized applications like SNAr reactions or heterocyclic chemistry. The Val-Cit dipeptide is cleaved by intracellular cathepsins, allowing efficient payload delivery via an elimination mechanism through the PAB structure.</p>

<p>11-Mercaptoundecanoate-NHS is a lipid utilized in the synthesis of Linkers.</p>

<p>MC-Val-Ala-NHS ester is a cleavable ADC linker featuring maleimide and NHS ester groups. The Val-Ala linker is susceptible to cleavage by cathepsin B. The maleimide group can react with thiol groups, as can the MC component. The NHS ester reacts specifically and efficiently with amines (such as lysine residue side chains or aminosilane-coated surfaces) under neutral or mildly alkaline conditions, forming covalent bonds. Reagent grade, intended for research use only.</p>

<p>(S)-MCOPPB is the S-enantiomer of MCOPPB, an orally active selective agonist for the Nociceptin/Orphanin FQ-Receptor. It inhibits signal transduction in mouse brain NOP receptors and is utilized in anxiety disorder research.</p>

<p>3-Cl-Pyridine-amide-acrylaldehyde-piperazine serves as a synthetic intermediate for LO-4-25. LO-4-25 is a ligand for the androgen receptor (AR) DNA binding domain and is linked to a truncated fumaramide handle via a connector. In 22Rv1 cells, LO-4-25 demonstrates potent degradation of both AR and AR-V7.</p>

<p>7-APB hydrochloride is a benzofuran compound and serves as a metabolite of 7-MAPB.</p>

<p>BrAc-Val-Ala is an ADC linker, utilized for synthesizing antibody-drug conjugates (ADC) such as ABBV-969.</p>

<p>5-Carboxy-2′-deoxycytidine is a metabolite of Trifluridine.</p>

<p>Propofolsulfate (sodium) is a metabolite of Propofol.</p>

<p>Mal((3S,3aR,6S,6aR)-Hexahydrofuro[3,2-b]furan-3,6-diamine-PEG12)-β-Glu-PAB is an ADC linker characterized by its reactivity with interchain cysteine through maleimide and cleavability by β-glucuronidase. It is utilized in the synthesis of antibody-drug conjugates (ADCs), such as AZD0516.</p>

<p>EtoricoxibN1'-oxide is a metabolite of Etoricoxib. It does not inhibit COX-1 and does not significantly inhibit COX-2.</p>

<p>(R)-Zevaquenabant ((R)-MRI-1867) is the enantiomer of Zevaquenabant. Zevaquenabant ((S)-MRI-1867) is a peripherally restricted, orally bioavailable dual antagonist of the cannabinoid CB1 receptor and inducible nitric oxide synthase (iNOS). It is beneficial in improving chronic kidney disease (CKD) caused by obesity.</p>

<p>CIT-ALD is an aldehyde intermediate formed during the metabolism of Citalopram. It has potential applications in the research of neurological disorders.</p>

<p>N-Methyl-N-[(3-methyldithio)-1-oxopropyl]-L-alanine serves as a PEGn linker for antibody-drug conjugates (ADC).</p>

<p>Desmonomethylpromazine is a demethylated metabolite of Promazine that can penetrate the brain. It enters red blood cells and tissues via passive diffusion and is distributed in organs such as the lungs, liver, and kidneys in rats.</p>

<p>MC-VC-PAB-O-Gemcitabine is a linker-antibiotic intermediate that forms part of the antibody-antibiotic conjugate (AAC) molecule. It is synthesized by conjugating the linker with the antibiotic Gemcitabine. This compound is useful in studying the immunotherapy of bacterial infections and developing novel antibacterial drugs.</p>

<p>(R)-KMH-233 is an isomer of KMH-233, which can serve as a reference compound in experiments. KMH-233 functions as a potent, reversible, and selective inhibitor of L-type amino acid transporter 1 (LAT1), effectively hindering the uptake of LAT1 substrate, l-leucine (IC50=18 μM), and also inhibiting cell growth. Even at a low concentration of 25 μM, KMH-233 significantly enhances the efficacy of Bestatin and cisplatin.</p>