Aluminium acetotartrate (or ALSOL) is an organic acid, astringent, and disinfectant.

It is the aluminium salt of acetic acid and tartaric acid.

[1][2] Aluminium acetotartrate occurs as colorless or yellowish crystals, freely but exceedingly slowly soluble in water and insoluble in alcohol and ether.

[1] Aluminium acetotartrate is employed in 0.5–2% solutions as a nasal douche in affections of the respiratory tract, in 1–3% solutions as a substitute for solution of aluminium acetate, in concentrated solution as a lotion in frostbite and balanitis, and as a snuff with boric acid in atrophic rhinitis.

[1] It is also used as an antiseptic vulnerary ointment cream.