What is the role of Chemical F in the following paragraph?

Chemcial B (CDMP; 15 g, 0.086 mol) was dissolved in Chemical C (NMP; 62.5 g) at ambient temperature. Chemcial D (12.1 g, 2.2 eq) was added all at once, and the mixture was heated to 50° C. with stirring for 2.5 h. The resulting slurry was cooled to 25° C., and 150 mL of water was added. Concentrated Chemical E was added drop-wise until a pH of 5.5 was reached. The thick slurry was filtered and washed twice with 10 mL of water to afford Chemical F (2) as a white solid (11.83 g, 76% yield). Your entire response should be in English, and in all capital letters.
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