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21635-99-4

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21635-99-4 Usage

General Description

Ethyl 5-cyano-1H-pyrrole-2-carboxylate is a chemical compound with the molecular formula C8H7NO2. It is a cyanopyrrole derivative and is commonly used as a building block in the synthesis of various pharmaceuticals and agrochemicals. Ethyl 5-cyano-1H-pyrrole-2-carboxylate is also known for its potential biological activities, including antimicrobial, antifungal, and anticonvulsant properties. Ethyl 5-cyano-1H-pyrrole-2-carboxylate is commercially available and is often used as an intermediate in the production of other organic compounds. It is important to handle this chemical with caution due to its potential health hazards and environmental impact.

Check Digit Verification of cas no

The CAS Registry Mumber 21635-99-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,6,3 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21635-99:
(7*2)+(6*1)+(5*6)+(4*3)+(3*5)+(2*9)+(1*9)=104
104 % 10 = 4
So 21635-99-4 is a valid CAS Registry Number.
InChI:InChI=1/C8H8N2O2/c1-2-12-8(11)7-4-3-6(5-9)10-7/h3-4,10H,2H2,1H3

21635-99-4Relevant articles and documents

Dissecting the complex recognition interfaces of potent tetrazole- and pyrrole-based anion binders

Pinter, Thomas,Simhadri, Chakravarthi,Hof, Fraser

, p. 4642 - 4648 (2013/07/05)

Tetrazoles are potent anion binders. We report here a new family of tetrazole-pyrrole-amide hosts that arise when a tetrazole is incorporated as a new binding element alongside the well-known amidopyrrole anion-binding scaffold. In addition to reporting three new, modular synthetic routes that can be used to access these structures, we also report that the new hosts are highly potent binders of chloride. Along the way, we carried out studies of a pyrrole ester control compound that, surprisingly, bound anions almost as strongly as did the amide analogues. This led us to investigate further the relative importance of the amide NH in halide binding. We report that, despite the regular appearance of this close amide NH - -Cl contact in calculated and experimental X-ray structures, the amide NH in this family of anion hosts does not hydrogen bond strongly to chloride in solution.

Photolysis of 2,6-dicyanopyridine 1-oxides.

Ishikawa,Kaneko,Yokoe,Yamada

, p. 295 - 300 (2007/10/07)

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