Back to results
US 11,111,218 B2Granted
Crystalline form of 5-amino-2,3-dihydrophthalazine-1,4-dione
AssigneeMetrioPharm AG
InventorsThomas Martin, Josef Breu, Juliane Fleissner, Wolfgang Brysch, Jörg Von Wegerer
Life of this patent
Estimating the term…
Abstract
A new crystalline form of 5-amino-2,3-dihydro-1,4-phthalazinedione (luminol) is provided. Advantageous uses for this crystalline form as a detecting agent or as an agent for forensic purposes are disclosed, as well a pharmaceutical composition containing said crystalline form.
Claims9
Crystalline Form II of 5-amino-2,3-dihydrophthalazine-1,4-dione of the following formula:
- wherein the crystalline Form II is characterized by a powder X-ray diffraction pattern comprising diffraction peaks at angles (° 2θ) of 7.5°, 12.6°, 13.1°, 13.4°, 25.9°, and 27.2°.
Dependencies are inferred from the claim text.