Al-Kindy, S. M. Z. published the artcileCoumarin-6-sulfonyl chloride: a novel label in fluorometry and phosphorimetry. Part 1. Synthesis and luminescence properties, HPLC of Formula: 10543-42-7, the publication is Analytica Chimica Acta (1989), 227(1), 145-53, database is CAplus.
Coumarin-6-sulfonyl chloride was synthesized from coumarin in a single step and characterized. It was used to label amines, amino acids and phenols in mild conditions. The products of such reactions show intense fluorescence in alk. solutions as a result of a photolytic ring-opening reaction. The derivatives are also phosphorescent a 77 K without ring opening.
Analytica Chimica Acta published new progress about 10543-42-7. 10543-42-7 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Chloride,Sulfonyl chlorides,Ester, name is Coumarin-6-sulfonyl chloride, and the molecular formula is C9H5ClO4S, HPLC of Formula: 10543-42-7.
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https://en.wikipedia.org/wiki/Chloride,
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