antibodies raised against the two immunogens in the rabbit possessed high specificity to estrone-3-glucuronide and estriol-3-glucuronide , respectively , exhibiting little cross-reactivities with other estrogen conjugates and no cross-reactions with related steroids except for free estrogens , their 3-methyl ethers and 3-sulfates .
C0014938
estrogen conjugates
C0014939
estrogens