prov:value
| - on atoms, e.g., ureido, methylureido and phenylureido), a phosphoric acid amido group (a phosphoric acid amido group preferably having from 1 to 20, more preferably from 1 to 16, and particularly preferably from 1 to 12, carbon atoms, e.g., diethylphosphoric acid amido and phenylphosphoric acid amido), a hydroxyl group, a mercapto group, a halogen atom (e.g., fluorine, chlorine, bromine and iodine
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