Alpha-Naphthyl Acetic Acid 4.5 SL

Alpha-naphthyl acetic acid 4.5 SL is a plant growth regulator (PGR) that works as a synthetic auxin, a type of plant hormone. The product is an aqueous solution containing 4.5% (w/w) alpha-naphthyl acetic acid (NAA). It is available under various brand names, such as Bayer’s Planofix and Katyayani’s Fix IT