Results 161 to 170 of about 13,809 (213)

Process Development of a Model Solvate for Drying Research. [PDF]

Org Process Res Dev
McCarthy NH, Alsaiari NS, Brown T, Mahdi FM, Bayly AE, Finn S, Muller FL.   +6 more
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Portable Multispectral Imaging System for Sodium Nitrite Detection via Griess Reaction on Cellulose Fiber Sample Pads. [PDF]

Sensors (Basel)
Kataphiniharn C, Unsuree N, Janchaysang S, Lumjeak S, Tulyananda T, Wangkham T, Srichola P, Nithiwutratthasakul T, Chattham N, Phanphak S.   +9 more
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The Azo Dye from 4‐Aminobenzoic Acid and Thymol – Proof of 4‐Aminobenzoic Acid as a decompostion product of Procaine

Archiv der Pharmazie, 1988
AbstractWir danken Herrn Prof. Dr. G. Zinner, Institut für Pharm. Chemie der Techn. Universität Braunschweig, für die Elementaranalyse. Herrn L. Schulte danken wir für seine gewissenhafte Mitarbeit.
G, Büsing, H, Grigat
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Separation of 4-aminobenzoic acid by cocrystallization: Crystal structure of the complex of 4-aminobenzoic acid with (2R,3R)-tartaric acid

Journal of Chemical Crystallography, 2002
4-Aminobenzoic acid (PABA) has been successfully separated from a mixture containing 2-aminobenzoic acid and (2R,3R)-tartaric acid. X-ray structure analysis confirms the separating result. The molecular complex formed by PABA and tartaric acid in 1:1 molar ratio crystallizes in the orthorhombic space group P212121 with cell dimensions of a = 7.329(1) A,
Ziqiang Hu, Jiageng Liu, Liang Shen, Duanjun Xu, Yuanzhi Xu   +4 more
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Decarboxylation of substituted 4‐aminobenzoic acids in acidic aqueous solution

Recueil des Travaux Chimiques des Pays-Bas, 1967
AbstractRates of decarboxylation have been determined of the following substituted 4‐aminobenzoic acids 2‐H‐, 2‐CH3‐, 2‐Cl‐, 2‐Br‐, 2‐NO2‐, 2‐OH‐, 2‐OCH3‐, 3‐Br‐, 2,6‐(CH3)2‐, 2,6‐(C2H5)2‐, 2,6‐Cl2‐ and 2,6‐Br2‐ in aqueous hydrochloric acid solution (pH ranging from about 0 to about 2), at 50° and an ionic strength of 0.1 (except for the lowest pH ...
J. M. Los, R. F. Rekker, C. H. T. Tonsbeek   +2 more
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Screening for cocrystals of succinic acid and 4-aminobenzoic acid

CrystEngComm, 2012
The ability of the pharmaceutically acceptable cocrystallising agents, succinic acid and 4-aminobenzoic acid, to form cocrystals with ten small organic molecules with hydrogen bonding acceptors but no donors, was investigated by grinding, hot-stage microscopy and solution based crystallisation experiments. The reproducible results obtained by different
Nizar Issa, Sarah A. Barnett, Sharmarke Mohamed, Doris E. Braun, Royston C. B. Copley, Derek A. Tocher, Sarah L. Price   +6 more
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The synthesis of 2‐mercapto‐4‐aminobenzoic acid

Recueil des Travaux Chimiques des Pays-Bas, 1951
AbstractThe synthesis of 2‐mercapto‐4‐aminobenzoic acid, a compound which is the sulphur analogue of p‐amino‐salicylic acid (2‐hydroxy‐4‐aminobenzoic acid), is described.
C. van Der Stelt, W. van Der Lugt, W. Th. Nauta   +2 more
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Hydrolytic dissociation constants of substituted 4‐aminobenzoic acids

Recueil des Travaux Chimiques des Pays-Bas, 1967
AbstractComposite hydrolytic dissociation constants, KI and KII, of 4‐aminobenzoic acids substituted as follows, 2‐H‐, 2‐CH3‐, 2‐Cl‐, 2‐Br‐, 2‐NO2‐, 2‐OH‐, 2‐OCH3‐, 3‐Br‐, 2,6‐(CH3)2‐, 2,6‐(C2H5)2‐, 2,6‐Cl2‐ and 2,6‐Br2‐, have been determined in aqueous solution, at 50°C and at an ionic strength of 0.1.From the values of pKI and pKII and the postulate ...
J. M. Los, R. F. Rekker, C. H. T. Tonsbeek   +2 more
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