objective(s):involvement of tyrosinase in the synthesis of melanin and cell signaling pathway has made it an attractive target in the search for therapeutic inhibitors for treatment of different skin hyperpigmentation disorders and melanoma cancers. materials and methods: in the present study, we conducted a comprehensive kinetic analysis to understand the mechanisms of inhibition imposed by 2-...

A 4-aza-1-azoniabicyclo-[2.2.2]octane cation, a 2-amino-benzoate anion and a neutral 2-amino-benzoic acid mol-ecule comprise the asymmetric unit of the title compound, C(6)H(13)N(2) (+)·C(7)H(6)NO(2) (-)·C(7)H(7)NO(2). An intra-molecular N-H⋯O hydrogen bond occurs in the anion and in the neutral 2-amino-benzoic acid mol-ecule. The cation provides a charge-assisted N-H⋯O hydrogen bond to the ani...

Simple D-hexoses such as D-glucose, D-mannose, and D-galactose were found to form supramolecular complexes with folic acid (FA) in phosphate-buffered saline solution (PBS, pH 7.4) the gas phase. Pterin subunit of FA was be essential for molecular assembly hexoses, whereas PABA (p-amino benzoic acid) GLN (glutamic subunits have virtually no effect on formation. Experimental measurements along DF...

The title compound [systematic name: benzoic acid-pyrrolidin-1-ium-2-carboxyl-ate (1/1)], C7H6O2·C5H9NO2, is an example of the application of non-centrosymmetric co-crystallization for the growth of a crystal containing a typically centrosymmetric component in a chiral space group. It co-crystallizes in the space group P212121 and contains benzoic acid and l-proline in equal proportions. The cr...

Benzoic acid has been reported to inhibit the oxidation of succinic acid by muscle (l), the oxidation of butyric acid and crotonic acid by liver slices (2), and the oxidation of acetoacetic acid by kidney slices (3). It has also been reported to inhibit the oxygen uptake of liver and kidney slices, diaphragm, minced liver, kidney, and brain (4). In the present work it was found that benzoic aci...

Benzoic acid has been reported to inhibit the oxidation of succinic acid by muscle (l), the oxidation of butyric acid and crotonic acid by liver slices (2), and the oxidation of acetoacetic acid by kidney slices (3). It has also been reported to inhibit the oxygen uptake of liver and kidney slices, diaphragm, minced liver, kidney, and brain (4). In the present work it was found that benzoic aci...

Hydrogen-bonding triarylamines, 4-(N,N-bis(4-methoxyphenyl)amino)benzoic acid (TPA1), 5-(N,N-bis(4-methoxyphenyl)amino)isophthalic acid (TPA2), and N-(4-(1H-benzimidazol-2-yl)phenyl)-N,N-bis(4-methoxyphenyl)amine (BImTPA), were synthesized as radical cation precursors. TPA1 and TPA2 are readily p-doped by AgSbF(6) to give highly persistent radical cations. Poor solid-state spin yields of the ra...