Fehler:
NO2%3A- %2B H%3A%2B %2B CO%28NH2%292 %3D CO2 %2B H2O %2B N2
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Unerwartets Zeichen ('%')NO2%3A- %2B H%3A%2B %2B CO%28NH2%292 %3D CO2 %2B H2O %2B N2
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Unerwartets Zeichen ('%')