androstenedione

https://doi.org/10.1351/goldbook.10387

Steroid hormone produced in the adrenal glands and gonads as a common precursor of male (testosterone) and female (estrogen) sex hormones.

Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 722 [Terms] [Paper]