Ethynyl estradiol 3-β-D-glucuronide is a metabolite of ethynyl estradiol that can be detected in urine.1,2It is used as a marker of estrogen contamination in fresh and saltwater.2

Ethynyl Estradiol 3-β-D-Glucuronide (hydrate)

DMSO:Slightly soluble
Methanol:Slightly soluble
Powder: -20°C for 3 years
In solvent: -80°C for 2 years