Beschrijving
5.5'-Dithio-bis-(2-nitrobenzoic acid) is een analytisch reagens aangeboden met min. 98 %, p.a., met CAS-nummer 69-78-3 en empirische formule C₁₄H₈N₂O₈S₂. De molaire massa is 396.36 g/mol, ter ondersteuning van een nauwkeurige bereiding van assayoplossingen voor thiolkwantificering en verwante biochemische metingen. In de laboratoriumpraktijk algemeen bekend als Ellman's reagent, wordt dit aromatische disulfide gebruikt om vrije sulfhydrylgroepen in eiwitten, peptiden en thiolen met laag molecuulgewicht te bepalen via het kenmerkende nitrothiobenzoaat-chromofoor. Het product is 5.5'-Dithio-bis-(2-nitrobenzoic acid) van fabrikant Carl ROTH omvat EG nr. 200-714-4 en een duidelijke p.a.-specificatie voor analytische consistentie. Los op en hanteer volgens standaard voorzorgsmaatregelen voor organische reagentia om stabiele werkoplossingen te verkrijgen voor kinetische of eindpuntassays in onderzoeks- en kwaliteitscontrolelaboratoria.
Dit artikel maakt deel uit van Zuren, in Zuren & basen.
Kenmerken
- Uiterlijk: wit tot geel kristallijn poeder
- Gehalte (HPLC): ≥98 %
- Water (KF): ≤1.5 %
- CAS-nummer: 69-78-3
- Verpakkingsgroottes: 1 g, 5 g, 25 g
- EG-nr.: 200-714-4
- Zuiverheid: min. 98 %, p.a.
- Brutoformule: C₁₄H₈N₂O₈S₂
- Molaire massa: 396.36 g/mol
- Technisch datablad:
- Veiligheidsinformatieblad:
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Questions about 5.5'-Dithio-bis-(2-nitrobenzoic acid), min. 98 %, p.a., 1 g, glas
What is this article?
5.5'-Dithio-bis-(2-nitrobenzoic acid), min. 98 %, p.a., 1 g, glas is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Zuren, inside Zuren & basen, in Chemicaliën.
An acid on this shelf is the substance itself, concentrated or as a stated solution: hydrochloric, sulfuric, nitric, acetic and the rest. Concentration, purity and the trace metals decide the use. A concentrated acid and a volumetric solution of the same name are different products, and both burn.
An acid donates a proton. A base accepts one. In the bottle, the practical differences are the concentration, the purity and the anion or cation that comes along. Concentrated mineral acids are a different article from a dilute volumetric solution. The water in the acid, and the trace metals, decide whether it can be used for analysis. Check the substance on PubChem and the classification on ECHA CLP. Transport is the UNECE dangerous-goods framework. The legal texts are the CLP Regulation and REACH.
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