Griffiths, V. S. published the artcileDipole-moment measurements of coumarin derivatives and their orientation at a dropping-mercury electrode, SDS of cas: 10543-42-7, the publication is Journal of the Chemical Society (1963), 4941-5, database is CAplus.
The dipole moments of coumarin and its 6-amino-, 6-acetamido-, 6-sulfamoyl-, and 6-chlorosulfonyl derivatives were determined Coumarin derivatives are adsorbed with the dipole moment parallel to the Hg surface.
Journal of the Chemical Society 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, SDS of cas: 10543-42-7.
Referemce:
https://en.wikipedia.org/wiki/Chloride,
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