The heterogeneity of the precipitating hapten R'3.
D001152:Arsenicals / Q000032:analysis* / Q000138:chemical synthesis; D001391:Azo Compounds / Q000032:analysis* / Q000138:chemical synthesis; D003460:Crystallization; D006241:Haptens / Q000032:analysis*; D007120:Immunochemistry; D011233:Precipitin Tests
D001152:Arsenicals; D001391:Azo Compounds; D006241:Haptens