Results 181 to 190 of about 13,809 (213)
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FLOW INJECTION SPECTROPHOTOMETRIC DETERMINATION OF PROPOXUR WITH DIAZOTIZED 4-AMINOBENZOIC ACID
Analytical Letters, 2002ABSTRACT A flow injection spectrophotometric method for the determination of propoxur with diazotized 4-aminobenzoic acid as the coupling agent was developed. The determination involves on-line hydrolysis at room temperature of the propoxur with sodium hydroxide.
R. Zanella +3 more
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Measurement and DFT Calculation on Terahertz Spectroscopy of 4-aminobenzoic Acid
Journal of Infrared, Millimeter, and Terahertz Waves, 2009We report the measurement of the terahertz (THz) spectra of 4-aminobenzoic acid by using Fourier transform infrared (FTIR) spectroscopy in the 1.5–19.5 THz. Low frequency intermolecular (or phonon) modes between 0.3 and 2.4 THz were also investigated via THz time-domain spectroscopy.
Qian Song +5 more
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Hydrogen bonding in the bromide salts of 4-aminobenzoic acid and 4-aminoacetophenone
Acta Crystallographica Section C Crystal Structure Communications, 2008In the title compounds, 4-carboxyanilinium bromide, C(7)H(8)NO(2)(+) x Br(-), (I), and 4-acetylanilinium bromide, C(8)H(10)NO(+) x Br(-), (II), each asymmetric unit contains a discrete cation with a protonated amino group and a halide anion. Both crystal structures are characterized by two-dimensional hydrogen-bonded networks.
Cinčić, Dominik, Kaitner, Branko
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Whisker 11. Poly(ester—amide)s derived from vanillic acid and 4-aminobenzoic acid
Polymer, 1995Abstract N,O -Bistrimethylsilyl-4-aminobenzoic acid was selectively acylated at the amino group with 4-acetoxy-3-methoxybenzoyl chloride. The resulting dimer with silylated carboxyl group was polycondensed in situ at 300 or 350°C using Marlotherm-S as an inert reaction medium.
Hans R. Kricheldorf, Gerd Löhden
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Archives of Biochemistry and Biophysics, 2011
Inhibition of human peroxidase enzymes such as myeloperoxidase or eosinophil peroxidase represents a novel therapeutic area, for which there are no current clinical therapeutics. We utilized 4-aminobenzoic acid hydrazide which was reported to be a potent irreversible inhibitor of myeloperoxidase to gain insight into the role of reactive metabolites in ...
Pratik, Arvadia +3 more
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Inhibition of human peroxidase enzymes such as myeloperoxidase or eosinophil peroxidase represents a novel therapeutic area, for which there are no current clinical therapeutics. We utilized 4-aminobenzoic acid hydrazide which was reported to be a potent irreversible inhibitor of myeloperoxidase to gain insight into the role of reactive metabolites in ...
Pratik, Arvadia +3 more
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LC-poly(ester-amide-imide)s derived from trimellitic acid and 4-aminobenzoic acid
Polymer, 1996Abstract A new mesogene diester based on phenyltrimellitimide was synthesized and used as a condensation monomer in combination with a number of aliphatic diols to render novel poly(ester-amide-imide)s (PEAIs). The melt polycondensation method provided polymers of moderate inherent viscosity, that were characterized by elemental analyses ...
Helmut Reinecke +4 more
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Zeitschrift für Kristallographie - Crystalline Materials, 1992
The (1:1) molecular adducts between the herbicide (2, 4-dichlorophenoxy)acetic acid (2, 4-D) and 4-aminobenzoic acid, [(2, 4-D)(4-ABA)], (1) and triphenylphosphine oxide, [(2, 4-D)(TPPO)], (2) have been determined by X-ray diffraction and refined to residuals R = 0.077 and 0.054 for 1 588 and 5051 observed reflections respectively. With adduct (1), the
Lynch, Daniel E. +3 more
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The (1:1) molecular adducts between the herbicide (2, 4-dichlorophenoxy)acetic acid (2, 4-D) and 4-aminobenzoic acid, [(2, 4-D)(4-ABA)], (1) and triphenylphosphine oxide, [(2, 4-D)(TPPO)], (2) have been determined by X-ray diffraction and refined to residuals R = 0.077 and 0.054 for 1 588 and 5051 observed reflections respectively. With adduct (1), the
Lynch, Daniel E. +3 more
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The phosphoric acid hydrolysis of 4-aminobenzo [b] thiophene
Tetrahedron Letters, 1970Donald E. Boswell +2 more
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Toxicity and radioprotective properties of 4-aminobenzoic acid derivatives
Pharmaceutical Chemistry Journal, 1996E. I. Tolstykh +5 more
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