Meta-aminobenzoic acid, an important model system in the study of polymorphism and crystallization of active pharmaceutical ingredients, exist in water in both the nonionic (mABA) and zwitterionic (mABA±) forms. However, the constituent molecules of the polymorph that crystallizes from aqueous solutions are zwitterionic. This study reports atomistic simulations of the events surrounding the ear...

The kinetics of p-aminobenzoic acid oxidation catalyzed by horseradish peroxidase Compounds I and II was investigated intensively as a function of pH at 25 degrees in aqueous solutions of ionic strength 0.11. All of the rate data were collected from single turnover experiments involving reactions of a single enzyme compound. In reactions of both compounds, deviations from first order behavior w...

The first indication that p-aminobenzoic acid is concerned in the synthesis of methionine by microorganisms was the observation that methionine, under appropriate conditions, overcame inhibition of growth by sulphonamides in a non-competitive manner (Harris & Kohn, 1941; Kohn, 1943; Bliss & Long, 1941). Since then methionine has frequently been shown with various organisms to be an essential co...

Glucose. ...................... Sodium acetate (anhydrous). ... Salts A K~HPOI ..................... KHzPOr .................... Salts B MgSOa.7HzO. ................ MnS01.4H20. ............... NaCl ........................ FeSO,.7HzO .................. Adenine ....................... Guanine ....................... Uracil ......................... Thiamine chloride. ............. Pyridoxamine ...

A series of aminobenzoic acid crystals with stacking-induced emission properties has been achieved and the packing structures of the hydrogen-bonded acid dimers provided an explanation for the emission characteristics of the crystals.

We report on nanoindentation data for two pairs of polymorphic compounds p-aminobenzoic acid (pABA) and p-nitrobenzoic (pNBA) compare it with existing in the literature. also explore a new parameter, s-PBC, as tool to estimate hardness.