A small molecule autophagy enhancer that induces autophagy independently of rapamycin in mammalian cells and enhances the clearance of autophagy substrates such as mutant huntingtin and A53T alpha-synuclein; reduces toxicity in Huntington's disease models.

PHY34 is a potent autophagy inhibitor with cytotoxic effects by inhibiting autophagy at a late stage (MDA-MB-435 IC50=23 nM, MDA-MB-231 IC50=5.2 nM); disrupts lysosomal function, significantly inhibits the growth of cancer cell lines in hollow fibers.

Sulfacetamide sodium monohydrate is a sulfonamide antibiotic, has been investigated for use in the treatment of pityriasis versicolor and rosacea.