![Tar bases, coal, crude Crude Tar Bases [The reaction product obtained by neutralizing coal tar base extract oil with an alkaline solution, such as aqueous sodium hydroxide, to obtain the free bases. Composed primarily of such organic bases as acridine, phenanthridine, pyridine, quinoline and their alkyl derivatives.] The reaction product obtained by neutralizing coal tar base extract oil with an alkaline solution, such as aqueous sodium hydroxide, to obtain the free bases. Composed primarily of such organic bases as acridine, phenanthridine, pyridine, quinoline and their alkyl derivatives. 648-141-00-2 molecular structure](https://www.ebi.ac.uk/opsin/ws/Tar%20bases%2C%20coal%2C%20crude%20Crude%20Tar%20Bases%20%5BThe%20reaction%20product%20obtained%20by%20neutralizing%20coal%20tar%20base%20extract%20oil%20with%20an%20alkaline%20solution%2C%20such%20as%20aqueous%20sodium%20hydroxide%2C%20to%20obtain%20the%20free%20bases.%20Composed%20primarily%20of%20such%20organic%20bases%20as%20acridine%2C%20phenanthridine%2C%20pyridine%2C%20quinoline%20and%20their%20alkyl%20derivatives.%5D%20The%20reaction%20product%20obtained%20by%20neutralizing%20coal%20tar%20base%20extract%20oil%20with%20an%20alkaline%20solution%2C%20such%20as%20aqueous%20sodium%20hydroxide%2C%20to%20obtain%20the%20free%20bases.%20Composed%20primarily%20of%20such%20organic%20bases%20as%20acridine%2C%20phenanthridine%2C%20pyridine%2C%20quinoline%20and%20their%20alkyl%20derivatives.%20648-141-00-2.png)
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