PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In this formula, R2 preferably or particularly represents the same radicals as given within the framework of the definition of substituents for formula (I) as being preferred or particularly preferred, and M preferably represents hydrogen, sodium or potassium or one equivalent of magnesium or calcium, in particular hydrogen.
http://www.w3.org/ns/prov#wasQuotedFrom
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