Sodium 1 octanesulfonate monohydrate

The following reagents were obtained from Sigma Co. (St. Louis, MO, USA): catechin, kaempferol, isorhamnetin, naringenin, quercetin, butylated hydroxytoluene (BHT), Folin–Ciocalteu’s phenol reagent, copper sulfate, ethylenediaminetetraacetic acid (EDTA), β-glucuronidase type H-2 (containing sulfatase from Helix pomatia), glutathione reductase (type III), nicotinamide adenine dinucleotide phosphate (NADP), sodium 1-octanesulfonate monohydrate, reduced glutathione, oxidized glutathione, sodium azide, sodium chloride, sodium phosphate monobasic, sodium phosphate dibasic, 1,1,3,3-tetraethoxypropane, 2’,3’,4’-trihydroxyacetophenone, Tris buffer, magnesium chloride, triphenylphosine, and α-tocopherol. Diisopropylethylamine (DIPEA), O-bis (trimethylsilyl) trifluoroacetamide (BSTFA), and pentafluorobenzyl bromide (PFBBr) were purchased from Thermo (Boston, MA, USA). Deuterated prostaglandin (PG) F_2α (internal standard), PGF_2β, and 8-iso-PGF_2α were purchased from Cayman (Ann Arbor, MI, USA). All organic solvents, glacial acetic acid, and potassium bromide were purchased from Fisher Co. (Fair Lawn, NJ, USA).

Perchloric acid was obtained from Loba Chemie (Mumbai, India). The standard of biogenic amines, putrescine dihydrochloride and spermidine trihydrochloride, were obtained from Sigma-Aldrich (St. Louis, MO, USA). Water, methanol, and acetonitrile of HPLC grade were obtained from RCl Labscan (Bangkok, Thailand). The other reagents for synthesis were: sodium acetate anhydrous, purchased from QReC (Selangor, Malaysia); sodium 1-octanesulfonate monohydrate, purchased from Sigma-Aldrich (St. Louis, MO, USA); boric acid and glacial acetic acid, obtained from RCl Labscan (Bangkok, Thailand); potassium hydroxide, purchased from Kemaus (Cherrybrook, New South Wales, Australia); Brij 35, purchased from Merck (Billerica, MA, USA); and 2-mercaptoethanol, purchased from Merck (Darmstadt, Germany). OPA was obtained from Himedia (Mumbai, India).

Dopamine, sodium 1-octanesulfonate monohydrate, 5-HT, HVA, 5-HIAA, sodium metabisulfite and DOPAC were obtained from Sigma-Aldrich Chemicals (St. Louis, MO, USA). Sodium chloride, hydrochloric acid, sodium dihydrogen phosphate, ethylenediaminetetraacetic acid disodium, sodium hydroxide, and acetonitrile were purchased from E. Merck (Darmstadt, Germany). MPTP hydrochloride was purchased from T.C.I. Co., LTD. (Tokyo, Japan)