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Methyl hydrogen phthalate is used as a phthalate ester metabolite, linked to precocious puberty.
ML Bender.; F Chloupek.; MC Neveu. Intramolecular Catalysis of Hydrolytic Reactions. III. Intramolecular Catalysis by Carboxylate Ion in the Hydrolysis of Methyl Hydrogen Phthalate1, 2. J. Am. Chem. Soc.1958, 80 (20), 5384-5387.
V Rao.; PV Ashokan.; MH Shridhar. Studies on the compatibility and specific interaction in cellulose acetate hydrogen phthalate(CAP) and poly methyl methacrylate (PMMA) blend. Polymer.1999, 40 (25), 7167-7171.
Undergoes a modified Curtius rearrangement via a mixed anhydride. The resulting isocyanate has been cyclized with, e.g. alanine to give chiral quinazoline-2,4-dione derivatives: Heterocycles, 36, 1305 (1993):
Hazard Statements: H315-H319-H335
Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statements: P261-P280a-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves and eye/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.