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Protection of amino groups in carbohydrates and steroids has been described using diphenylmaleic anhydride to form colored diphenylmaleimides. Deprotection is brought about with hydrazine in ethanol: J. Org. Chem., 42, 2819 (1977); Biol. Pharm. Bull., 17, 881 (1994)./n
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.