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Nitroso

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Nitroso Compounds

Nitroso compounds are a class of chemicals containing the nitroso functional group (–N=O) attached to carbon, nitrogen, sulfur, or oxygen. They are classified as C-nitroso (R-N=O), N-nitroso (R₂N-N=O, e.g., nitrosamines), and S-nitroso (thionitrites). They exhibit unique reactivity, acting as electrophiles, nitrosating agents, or ligands in metal complexes. They are typically synthesized via nitrosation (e.g., treatment of amines or metal complexes with nitrous acid) or by oxidizing nitro compounds.

These compounds exhibit distinct chemistry:

– Exist in monomer–dimer equilibria (e.g., nitrosobenzene cycles between green monomer and yellow dimer).
– Undergo diverse reactions—electrophilic/nucleophilic additions, redox transformations—and can complex with metals, forming dyes or pigments like Pigment Green B.

– Include sub‑classes such as N‑nitroso (nitrosamines, many of which are toxic), C‑nitroso, S‑nitroso, and O‑nitroso compounds.

Key Properties & Applications:

– Stability: Aromatic nitroso compounds (e.g., nitrosobenzene) are stable; aliphatic variants often dimerize.
– Reactivity: Used in Diels-Alder reactions, polymer curing, and as intermediates in dyes/pharmaceuticals.
– Hazards: Some (e.g., nitrosamines) are highly toxic, requiring strict handling.

Aquigen Bio supplies high-purity nitroso compounds/ impurity standards for research and industrial use, with certified testing and regulatory compliance.

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