Aminacrine hydrochloride monohydrate (Standard) is the standard substance of Aminacrine hydrochloride monohydrate, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Aminacrine hydrochloride monohydrate, a highly fluorescent anti-infective dye, is used as a topical antiseptic and mutagen due to its interaction with DNA. It is also used as an intracellular pH indicator.