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Selective and sensitive chromogenic detection of cyanide

Selective and sensitive chromogenic detection of cyanide

A chromogenic oxazine compound for the colorimetric detection of cyanide was designed. Indeed, the [1,3]oxazine ring of our compound opens to form a phenolate chromophore in response to cyanide. The heterocyclic com-pound may be comprised of fused benzooxazine and indoline rings:

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