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Coumarin-3-carboxylic acid is used as pharmaceutical intermediate.
Yefim Manevich; Kathryn D.Held; John E.Biaglow. Coumarin-3-carboxylic acid as a detector for hydroxyl radicals generated chemically and by gamma radiation. Radiation Research. 1997, 148,(6), 580-591.
Tz. Mihaylov; N.Trendafilova; I.Kostova; I.Georgieva; G.Bauer. DFT modeling and spectroscopic study of metal-ligand bonding in La(III) complex of coumarin-3-carboxylic acid. Chemical Physics. 2006, 327,(2-3), 209-219.
Gefahrenhinweise (EU): H301
Toxic if swallowed.
Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Wear protective gloves/protective clothing/eye protection/face protection. 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.