can't read?
Tetrapropylammonium hydroxide is a colorless, sometimes slightly yellowish liquid and is usually present as an aqueous solution.
T 1516 (OTTO) Tetra propyl ammonium hydroxide 40% aqueous solution Cas 4499-86-9 - used as an antistatic agent, detergent sanitizers, softener for textiles and paper products, emulsifying agents and pigment dispersers.