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7-Hydroxycoumarin is used as an intracellular pH sensitive fluorescent indicator & bloodbrain barrier probe. It is used as a sunscreen agent, and an optical brightener for textiles. It has also been used as a gain medium for dye lasers.
Michaela Walshe; Joshua Howarth; Mary T Kelly; Richard O'Kennedy; Malcolm R Smyth. The preparation of a molecular imprinted polymer to 7- hydroxycoumarin and its use as a solid-phase extraction material.Journal of Pharmaceutical and Biomedical Analysis.1997, 16 319-325.
M. E. Marshall; J. L. Mohler; K. Edmonds; B. Williams; K. Butler; M. Ryles; L. Weiss; D. Urban; A. Bueschen; M. Markiewicz; G. Cloud. An updated review of the clinical development of coumarin (1,2-benzopyrone) and 7-hydroxycoumarin.Journal of Cancer Research and Clinical Oncology.1994, 120 S39-S42.
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.