Piribedil N-oxide is a metabolite of the dopamine receptor agonist Piribedil.

N-Desmethyl rosiglitazone (SB 237216) is a metabolite of Rosiglitazone, generated through demethylation by the cytochrome P450 enzyme system in liver microsomes. It retains partial PPARγ agonist activity and supports studies on the metabolism and pharmacokinetics of Rosiglitazone.

Desmethyl mirtazapine (Normirtazapine) hydrochloride is a metabolite of Mirtazapine. Mirtazapine is a potent and orally active noradrenergic and specific serotonergic antidepressant (NaSSA) agent.

10-Hydroxywarfarin, a metabolite of (R)-(+)-Warfarin, is a CYP2C9 and vitamin K epoxide reductase complex 1 (VKOR) inhibitor with IC50s of 1.6 µM and 80 ng/mL, respectively.

Ribavirin carboxylic acid (TR-COOH) is a metabolite of ribavirin, ribavirin has strong antiviral activity.

Enzalutamide carboxylic acid (MDV3100 carboxylic acid) is an inactive metabolite of Enzalutamide (MDV3100). Enzalutamide is an androgen receptor (AR) antagonist.

N-Desmethyl Pimavanserin (AC-279) is the active metabolite of Pimavanserin. Pimavanserin is a selective inverse agonist of the 5-HT2A receptor with pIC50 and pKd of 8.73 and 9.3, respectively.

S-Allylmercapturic acid is a biomarker of food intake (BFIs) for garlic consumption.

3,4-Dehydro Cilostazol (OPC-13015) is an active metabolite of Cilostazol. 3,4-Dehydro Cilostazol is used for pharmacokinetic study.

Ilaprazole sulfone is the major metabolite of Ilaprazole, is predominantly catalysed by CYP3A4/5. Ilaprazole (IY-81149) is an orally active proton pump inhibitor.

7-Hydroxymethotrexate-d3 is the deuterium labeled 7-Hydroxymethotrexate. 7-Hydroxymethotrexate is a major metabolite of Methotrexate. Methotrexate, an antimetabolite and antifolate agent, inhibits the enzyme dihydrofolate reductase, thereby preventing the conversion of folic acid into tetrahydrofolate, and inhibiting DNA synthesis.

α-Demethylnaproxen is the major metabolite of Nabumetone, Nabumetone is an orally active COX-2 inhibitor with anti-inflammatory activity.

Abiraterone sulfate is a metabolite of Abiraterone. Abiraterone is a potent and irreversible CYP17A1 inhibitor with antiandrogen activity.

Abiraterone N-oxide is a metabolite of Abiraterone. Abiraterone is a potent and irreversible CYP17A1 inhibitor with antiandrogen activity.

Ferulic acid 4-O-sulfate (Ferulic acid 4-sulfate) is a metabolite of Ferulic acid. Ferulic acid 4-O-sulfate relaxes arteries and lowers blood pressure in mice.

Ferulic acid acyl-β-D-glucoside is a metabolite of Ferulic Acid. Ferulic acid is a novel fibroblast growth factor receptor 1 (FGFR1) inhibitor with IC50s of 3.78 and 12.5 μM for FGFR1 and FGFR2, respectively.

(E)-10-Hydroxynortriptyline (E-10-OH-NT) is a metabolite of Nortriptyline. Nortriptyline is a tricyclic antidepressant and the main active metabolite of Amitriptyline, and is used to relieve the symptoms of depression.

Tofacitinib metabolite-1 is a metabolite of Tofacitinib, a JAK inhibitor. Tofacitinib metabolite-1 can be used in the pharmacokinetics and metabolism studies of tofacitinib.

4'-Hydroxy diclofenac is an orally active metabolite of Diclofenac by cytochrome P450 2C9 (CYP2C9). 4'-Hydroxy diclofenac has anti-inflammatory and analgesic properties.

4'-Hydroxy diclofenac D4 is the deuterium labeled 4'-Hydroxy diclofenac. 4'-Hydroxy diclofenac is an orally active metabolite of Diclofenac by cytochrome P450 2C9 (CYP2C9). 4'-Hydroxy diclofenac has anti-inflammatory and analgesic properties.

3-Amino-2-oxazolidinone-d4 is a deuterium labeled 3-Amino-2-oxazolidinone. 3-Amino-2-oxazolidinone (AOZ) is the metabolite of Furazolidone. 3-Amino-2-oxazolidinone is always be detected as an indicator of furazolidone residues.

(S)-O-Desmethyl Venlafaxine N-Oxide is a N-oxyde of (S)-O-Desmethyl Venlafaxine. O-Desmethyl Venlafaxine is an active metabolite of Venlafaxine. Venlafaxine is an antidepressant of the serotonin-norepinephrine reuptake inhibitor (SNRI) class.

(S)-(+)-O-Desmethyl Venlafaxine is a S-enantiomer of O-Desmethyl Venlafaxine. O-Desmethyl Venlafaxine is an active metabolite of Venlafaxine. Venlafaxine is an antidepressant of the serotonin-norepinephrine reuptake inhibitor (SNRI) class.

(R)-(-)-O-Desmethyl Venlafaxine D6 is the deuterium labeled (R)-(-)-O-Desmethyl Venlafaxine. O-Desmethyl Venlafaxine is an active metabolite of Venlafaxine. Venlafaxine is an antidepressant of the serotonin-norepinephrine reuptake inhibitor (SNRI) class.

(S)-(+)-O-Desmethyl Venlafaxine D6 is the deuterium labeled (S)-(+)-O-Desmethyl Venlafaxine. O-Desmethyl Venlafaxine is an active metabolite of Venlafaxine. Venlafaxine is an antidepressant of the serotonin-norepinephrine reuptake inhibitor (SNRI) class.

Dasatinib metabolite M6 (Dasatinib carboxylic acid) is an oxidative metabolite of Dasatinib. Dasatinib is a potent and orally active dual Bcr-Abl and Src family tyrosine kinase.

N-Desmethyl imatinib mesylate (Norimatinib mesylate) is a metabolite of Imatinib. Imatinib is a multi-target inhibitor of v-Abl, c-Kit and PDGFR.

Nordoxepin D3 hydrochloride (Desmethyldoxepin D3 hydrochloride) is the deuterium labeled Nordoxepin hydrochloride. Nordoxepin hydrochloride is an active metabolite of Doxepin hydrochloride, which is an orally active tricyclic antidepressant.

Trimipramine N-oxide is an active metabolite of the tricyclic antidepressant trimipramine. Trimipramine N-oxide inhibits the human monoamine transporters for noradrenaline (hNAT), serotonin (hSERT), dopamine (hDAT) and the human organic cation transporters (hOCT1 and hOCT2) with IC50s of 11.7, 3.59, 9.4, 9.35 and 27.4 nM, respectively. Trimipramine N-oxide can be used for the research of depression and anxiety.

Levofloxacin N-oxide is a minor metabolite of Levofloxacin. Levofloxacin N-oxide does not exhibit significantly genotoxic risks. Levofloxacin is an orally active antibiotic and is active against both Gram-positive and Gram-negative bacteria.