title: Synthesis of new steroid haptens for radioimmunoassay--VI. 3-O-Carboxymethyl ether derivatives of equine estrogens. Highly specific antisera for measurement of equilin and 17 alpha-dihydroequilin in plasma.
mesh_terms: D015068:17-Ketosteroids / Q000097:blood*; D000818:Animals; D003429:Cross Reactions; D004857:Equilin / Q000031:analogs & derivatives / Q000097:blood*; D004966:Estrogens, Conjugated (USP) / Q000097:blood / Q000138:chemical synthesis*; D005260:Female; D006241:Haptens; D006736:Horses; D006801:Humans; D007106:Immune Sera; D008722:Methods; D011863:Radioimmunoassay / Q000379:methods; D013256:Steroids / Q000276:immunology
chemical_list: D015068:17-Ketosteroids; D004966:Estrogens, Conjugated (USP); D006241:Haptens; D007106:Immune Sera; D013256:Steroids; D004857:Equilin; C014482:dihydroequilin