(2R)-2,6-diaminohexanoic acid; (2R,4S)-2-({[(5R)-5-amino-5-carboxypentyl]carbamoyl}(2-phenylacetamido)methyl)-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
Benzylpenicilloyl polylysine is used as a skin-testing reagent to detect immunoglobulin E antibodies in people with a history of penicillin allergy. The quantitation of in vitro IgE antibodies to the benzylpenicilloyl determinant is a useful tool for evaluating allergic subjects.