Premodifier: sulfonate
Head noun: ester

Same concepts
http://dbpedia.org/resource/Sulfonate

Broader concepts

labelprovenanceconfidence
groupisap:3701752460.597290
amineisap:3761532010.187523

Narrower concepts

labelprovenanceconfidence
mesylateisap:3602365290.462636
alkylisap:3702664130.395346
tosylateisap:3597297900.238989