prov:value
| - ary ammonium groups and R9 and R10, which may be identical or different, are a hydrogen atom or alkyl, alkenyl, cycloalkyl or aralkyl radicals containing at most 20 carbon atoms and optionally substituted by hydroxyl, alkoxy, amine or quaternary ammonium groups, or, if R5 is a hydrogen atom, or an optionally substituted aryl or alkyl radical, R6 can also represent a --COO.sup.??? M.sup.??? radical
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