Purification Methods
Purify the aminouracil by dissolving it in 3M aqueous NH3, filtering hot, and adding 3M formic acid until precipitation is complete. Cool, filter off (or centrifuge), wash well with cold H2O, then EtOH and dry it in air. Dry it further in a vacuum at ~80o. [Barlin & Pfeiderer J Chem Soc (B) 1424 1971, Beilstein 25 III/IV 4107.]
References
[1] Russian Journal of Organic Chemistry, 2002, vol. 38, # 7, p. 1053 - 1055
[2] Journal of Chemical Research, 2016, vol. 40, # 12, p. 771 - 777
[3] Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1996, vol. 35, # 7, p. 662 - 668
[4] Australian Journal of Chemistry, 2007, vol. 60, # 2, p. 120 - 123
[5] Oriental Journal of Chemistry, 2010, vol. 26, # 4, p. 1281 - 1292
