Description
1,1'-Carbonyldiimidazole (CDI) is a coupling reagent offered in PEPTIPURE® quality with a minimum assay of 98 %. Identified by CAS number 530-62-1 and empirical formula C₇H₆N₄O, it has a molar mass of 162,1 g/mol and a density of 1,566 g/cm³. The boiling point lies above 300 °C, which supports use in thermally demanding synthetic steps. CDI is widely applied in peptide chemistry and organic synthesis to activate carboxylic acids and to form amide and ester linkages under comparatively mild conditions. This from manufacturer Carl ROTH is intended for research and preparative laboratories that need a defined carbonyldiimidazole source for solution-phase or solid-phase workflows. The PEPTIPURE® specification aligns the material with peptide-oriented coupling protocols where consistent reagent quality aids reproducible carbonyl-transfer reactions. Typical uses include peptide bond formation, mixed anhydride-type activations, and related transformations that rely on imidazole-based leaving groups. The stated EG number is 208-488-9.
This article is part of Bases & alkalis, in Acids & bases.
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Questions about 1,1'-Carbonyldiimidazole (CDI), PEPTIPURE® min. 98 %, 10 g, glass
What is this article?
1,1'-Carbonyldiimidazole (CDI), PEPTIPURE® min. 98 %, 10 g, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Bases & alkalis, inside Acids & bases, in Lab chemicals.
A base or an alkali is sodium hydroxide, potassium hydroxide, ammonia and their relatives, as solid or as solution. The carbonate that a hydroxide picks up from the air changes a titre. Concentration and purity are the specification. Concentrated alkalis attack skin and aluminium.
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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