4-Aminobenzoic acid–nicotinic acid (2/1)
Acta Crystallographica Section E Structure Reports Online, 2006 In the title compound, 2C7H7NO2·C6H5NO2, the 4-aminobenzoic acid and the nicotinic acid molecules are approximately planar. The crystal structure is stabilized by an extensive network of N—H⋯O, O—H⋯O and O—H⋯N hydrogen bonds.
Thailampillai Balasubramanian +1 more
openaire +2 more sources
Hydrogen-bonded co-crystal structure of benzoic acid and zwitterionic l-proline
Acta Crystallographica Section E: Crystallographic Communications, 2017 The title compound [systematic name: benzoic acid–pyrrolidin-1-ium-2-carboxylate (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 ...
Aaron M. Chesna +3 more
doaj +1 more source
Linguistic mechanism of the evolution of amino acid frequencies and genomic GC content [PDF]
arXiv, 2006 Much information is stored in amino acid composition of protein and base composition of DNA. We simulated the evolution of amino acid frequencies and genomic GC content by a linguistic model. It is showed that the evolution of genetic code determines the evolution of amino acid frequencies and genomic GC content.
arxiv
Genetic Code Table: A note on the three splittings into amino acid classes [PDF]
arXiv, 2009 This note represents the further progress in understanding the determination of the genetic code by Golden mean (Rakocevic, 1998). Three classes of amino acids that follow from this determination (the 7 "golden" amino acids, 7 of their complements, and 6 non-complements) are observed now together with two further possible splittings into 4 x 5 and 5 x ...
arxiv
NEXAFS and XPS of p-Aminobenzoic Acid Polymorphs: The Influence of Local Environment [PDF]
, 2015 Nitrogen K-edge XPS and NEXAFS of the two polymorphic forms of para- aminobenzoic acid (PABA) are significantly different reflecting variation in hydrogen bonding. Alteration in hydrogen bonding at the amino group leads to a shift to high energy for both
A Gainar +6 more
core +1 more source
Tuberculostatic Derivatives of p-Aminobenzoic Acid. III. Heterocyclic Derivatives of 4-Aminosalicylic Acid. [PDF]
, 1952 Kai Jensen +5 more
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Separation of p-Aminobenzoic Acid by Reactive Extraction in the Presence of 1-Octanol as Phase Modifier [PDF]
, 2010 The paper presents the studies on reactive extraction of p-aminobenzoic acid with two extractants (Amberlite LA-2 and D2EHPA) dissolved in two solvents with different dielectric constants (n-heptane, dichloromethane), at various 1-octanol concentrations ...
A.-I. Galaction +2 more
core +1 more source
Tuberculostatic Derivatives of p-Aminobenzoic Acid. V. 4-Aminosalicyloyl Derivatives of Sulfanilamide and Related Compounds. [PDF]
, 1952 Kai Jensen +5 more
openalex +1 more source
Indigenous amino acids in primitive CR meteorites [PDF]
arXiv, 2008 CR meteorites are among the most primitive meteorites. In this paper, we report the first measurements of amino acids in Antarctic CR meteorites, two of which show the highest amino acid concentrations ever found in a chondrite. EET92042, GRA95229 and GRO95577 were analyzed for their amino acid content using high performance liquid chromatography with ...
arxiv
Spectrophotometric Determination of Atrazine [2-Chloro-4-ethy lamino-6-isopropy lamino-s-triazine] using p-Aminobenzoic Acid and its Applications [PDF]
, 1995 Joyce Vanisha Das, Vinod Kumar Gupta
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