1734-63-0Relevant academic research and scientific papers
Influence of impurities on the crystallisation of 5-X-aspirin and 5-X-aspirin anhydride polymorphs (X = Cl, Br, Me)
Solanko, Katarzyna A.,Bond., Andrew D.
experimental part, p. 6991 - 6996 (2012/05/31)
Crystallisation of 5-X-aspirin (X = Cl, Br) by ambient evaporation from organic solvents commonly yields a mixture of polymorphs I and II for X = Cl, but only polymorph I for X = Br. Addition of 5-X-aspirin anhydride (5-20 mol %) leads to sole production
