Abstract: Provided are androstane and dihydrotestosterone compounds functionalized with carbocyclic groups or heterocyclic groups that may be saturated or unsaturated. The compounds may be used in methods of inhibiting cell growth of malignant cells and/or hyperplastic cells and/or treating individuals having diseases associated with malignant cell growth (e.g., cancer, such as, for example, prostate cancer) and/or hyperplastic cell growth and/or molecular imaging of malignant cells and/or hyperplastic cells and/or inducing degradation of a target protein. Also provided are compositions.