Yu, Hui published the artcileSynthesis, characterization and properties of rare earth complexes with pyrazolone and 2,6-pyridinecarboxylic acid, Application In Synthesis of 4551-69-3, the publication is Zhongguo Xitu Xuebao (2014), 32(3), 328-337, database is CAplus.
The four new solid ternary complexes of rare earth with 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone and 2,6-pyridinecarboxylic acid, Na2[RE(PMBP)3(PDA)]·nH2O (RE = Sm3+, Y3+, Er3+, the La-complex including one coordinated water), were synthesized and characterized by elemental anal., FTIR, UV-visible, XRD, TG-DTA and XPS. The antibacterial activities test indicated that all the complexes exhibited moderate antibacterial ability against Escherichia coli and Staphylococcus aureus. also studied the interactions of the Er-complex with calf thymus DNA (CT DNA) employing florescence spectroscopic and UV spectrum. DNA interaction studies suggested the Er-complex could intercalate between DNA base pairs. The Sm-complex might be used as fluorescent probe.
Zhongguo Xitu Xuebao published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C6H13I, Application In Synthesis of 4551-69-3.
Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics