Chlorbromuron

LC-MS grade methanol and water were obtained from VWR, Darmstadt, Germany. Quercetin dehydrate (≥95%, high performance liquid chromatography (HPLC)) was purchased from Enzo Life Sciences GmbH, Lörrach, Germany. Diclofenac (>99%) was obtained from Cayman Chemical Company, Ann Arbor, Michigan, MI, USA. Glyphosate (100 quality level, HPLC), gabapentin (200 quality level, HPLC), monuron (100 quality level, HPLC), chloridazon (100 quality level, HPLC), carbetamide (100 quality level, HPLC), metobromuron (100 quality level, HPLC), sotalol (≥98%), quinoxyfen (100 quality level, HPLC), metconazol (100 quality level, HPLC) and fenofibrate (≥99%) were obtained from Sigma, Darmstadt, Germany. Metformin (300 quality level, HPLC) was obtained from Fluka, Buchs, Switzerland. Furthermore, chlorbromuron (99.24%) and diazinon (99.53%) were obtained from Dr. Ehrenstorfer, Augsburg, Germany. Carbamazepine, 2,3-dihydro-2,3-dihydroxycarbamazepine, 10,11-dihydro-10,11-dihydroxy-carbamazepine, 10,11-dihydro-10-hydroxy-carbamazepine, 9-acridine carboxaldehyde and carbamazepine-10,11-epoxide were kindly provided by the German Research Center for Environmental Health, Comparative Microbiome Analysis (COMI), Helmholtz Centrum of Munich, Munich, Germany.

LC-MS grade methanol (MeOH) and water (H₂O; LC-MS grade) were obtained from VWR, Darmstadt, Germany. Acetonitrile (LC-MS grade) was purchased from Riedel-de-Haen (Honeywell, Seelze, Germany). 6-Amino-1,3-dimethyl-5-(formylamino)uracil, chlortoluron, famotidine, vidarabine, etilefrine, and 2,4-diamino-6-(hydroxymethyl)pteridine hydrochloride, and apigenin, monuron, chloridazon, carbetamide, metobromuron, sotalol, metconazol, vitexin, flavone (2-phenylchromone), DL-Ala-DL-Ala, nicotinic acid, nicotinamide, galangin, and acacetin were obtained from Merk, Darmstadt, Germany. Chlorbromuron was obtained from Dr. Ehrenstorfer, Augsburg, Germany. apigenin-6-C-arabinoside-8-C-glucoside, apigenin-6,8-di-C-glucoside, apiin, orientin, kaempferol, peonidin, norwogonin, luteolin-3,7-O-di-glucoside, 6-methoxy flavone, 4-methoxy cinnamic acid, naringenin-7-O-glucoside, isovitexin, tricin, quercetin-3-O-glucoside, saponarin, myricetin, 5-hydroxy-6-methoxy flavone, chrysoeriol, isovitexin, robinetin, and umbelliferone were kindly provided by Center of Life and Food Science Weihenstephan, Biotechnology of Natural Products, Technical University of Munich, Germany.