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Description
4-Chloro-2,1,3-benzoxadiazole (CAS 7116-16-7), also known as 4-chlorobenzofurazan, is a nitrogen-rich heterocyclic building block from TCI available at AMI Scientific. The activated chlorine atom readily undergoes nucleophilic aromatic substitution with amines, thiols, and alkoxides, giving quick access to diverse benzoxadiazole derivatives. This scaffold is widely associated with fluorescent probes, labelling reagents, and medicinal chemistry libraries. Two pack sizes are offered so laboratories can match the quantity to exploratory screening or larger synthetic campaigns.
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