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5 dithiobis 2 nitrobenzoic acid

Manufactured by Merck Group
Sourced in Japan, United States, United Kingdom, India

5-dithiobis-2-nitrobenzoic acid is a chemical compound commonly used as a reagent in biochemical and analytical applications. It is a yellow crystalline solid that is soluble in water and organic solvents. The compound is known for its ability to react with sulfhydryl groups, making it useful for the detection and quantification of free thiol groups in proteins and other biological molecules.

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5 protocols using 5 dithiobis 2 nitrobenzoic acid

1

Acetylcholinesterase Inhibition Assay

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Chemicals that were used in this study are analytical grade. Acetylthiocholine iodide (ATCI), butyrylthiocholine iodide (BTCI), donepezil, galantamine, 5’dithio-bis-(2-nitro) benzoic acid, and SK were purchased from Sigma-Aldrich (Japan). Tris-HCl buffer, sodium chloride, magnesium chloride, and Triton X-100 were collected from Wako Pure Chemical Company Ltd. (Japan). Solvents (methanol, chloroform, etc.) were used in this experiment were analytical grade also.
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2

Spin Label and Redox Assay Reagents

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The following chemicals were purchased from Sigma Chemical Co. (St. Louis, MO, USA): 4-iodoacetamide-TEMPO (iodoacetamide spin label; ISL), 4-Amino-TEMPO (tempamine), 2, 4, 6-tripyridyl-s-triazine (TPTZ), o-phthalaldehyde (OPA), xylenol orange, 5-dithiobis-2-nitrobenzoic acid (DTNB), acetylthiocholine iodide, 2, 4-dinitrophenylhydrazine (DNPH), and 2, 2′-dithiodipyridine. Bis-(2, 2, 5, 5-tetramethyl-3-imidazoline-1-oxyl-4-yl) disulfide biradical (•RSSR•) was obtained from Enzo Life Sciences, Inc. (New York, USA). All other reagents of analytical purity were obtained from POCH S.A. (Gliwice, Poland).
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3

Muscarinic Receptor Activation Protocol

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Muscarine chloride, zinc chloride, dithiothreitol, 5-dithio-bis(2-nitrobenzoic acid), and methanethiosulfonates were all purchased from Sigma-Aldrich, UK. For high potassium (25 mM K) or acidic pH (pH 6.4) experimentation, the extracellular solution was adjusted accordingly. Muscarine chloride was added directly to extracellular solution at a concentration of 0.1 μM prior to use.
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4

Spectrophotometric Quantification of GSH

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A method described by Salbitani et al. (2017) was used to estimate the GSH content [43 (link)]. We mixed 100 µL of tissue homogenate with 10% trichloroacetic acid (Sigma-Aldrich, Bangalore, India) and poured it into a test tube. Then, 5′-dithiobis (2-nitrobenzoic acid) (Sigma-Aldrich, Bangalore, India) and 3.0 mL of phosphate buffer (pH 8.4) were added to the supernatant after centrifugation at 5000 rpm for 10 min. A spectroscopy measurement at 412 nm was performed within 10 min of mixing the mixture. Protein concentrations of GSH were expressed as µg/mg.
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5

Assessing Biochemical Markers in Rat Serum

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Monosodium L-glutamate (MSG), 5, 5-dithiobis-2-nitrobenzoic acid, butyrylthiocholine iodide (BTCI), glucose oxidase, peroxidase, cholesterol standard, 4-aminophenazone and thiobarbituric acid were purchased from Sigma-Aldrich, Bangalore. For the quantitative analysis of rat serum insulin, the ELISA kit was purchased from EMD Millipore, USA. All other reagents used were of analytical grade and obtained locally.
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