plant growth regulators

Sodium Salt of Ortho-Nitrophenol (also known as Sodium 2-nitrophenolate, CAS 824-39-5, C6H4NNaO3, MW 161.09 g/mol) is a high-solubility, dark red to orange crystalline powder. Synthesized by neutralizing ortho-nitrophenol with sodium hydroxide, this ionic compound combines the reactivity of a phenolate group with excellent water solubility (2,760mg/L at 20°C), making it far more versatile for aqueous formulations than its parent phenol. It acts as an exceptionally powerful cell-activating agent and biostimulant. The primary commercial application for Sodium Ortho-Nitrophenolate is in the agricultural industry as an active Plant Growth Regulator (PGR). It rapidly penetrates plant tissue to accelerate protoplasmic streaming, enhance photosynthetic intensity, break seed dormancy, and stimulate robust root development. It is widely used in foliar sprays, seed treatments, and compound fertilizers to improve yield, fruit setting, and crop resistance to environmental stresses like drought and cold. Beyond agriculture, it serves as a critical organic synthesis intermediate in the manufacturing of azo dyes, technical pigments, rubber antioxidants, and downstream pharmaceutical compounds. Classified under GHS and transport regulations as a hazardous material (UN 1663, Class 6.1, Packing Group III), it is harmful if swallowed or inhaled and causes notable skin and eye irritation. Standard industrial safety protocols require the use of protective gloves, safety eyewear, and respiratory equipment. It must be stored in a cool, well-ventilated warehouse space (ideally under 15°C), keeping containers tightly sealed against moisture and strictly separated from strong reducing or oxidizing agents. We provide premium industrial-grade Sodium Salt of Ortho-Nitrophenol with a guaranteed purity of 98.0% to 99.0% (HPLC/GC). Standard industrial packaging options include secure 25 kg fiber drums and moisture-proof HDPE bags. Customized packaging volumes, technical data sheets (TDS), and verification testing samples are readily available upon commercial request.