Results 251 to 260 of about 5,028,792 (285)

Zwitterion ratios of aminobenzoic acids

Australian Journal of Chemistry, 1969
Relations have been established between the pKa values for the non- zwitterionic forms of meta- and para-aminobenzoic acids, pKB, and the pKa values of the corresponding methyl and ethyl esters, pKE. For methyl m-aminobenzoate, the expression is pKB = pKE + 0.09, whilst for the ethyl ester it is pKB = pKE + 0.03.
openaire   +2 more sources

Efficient sorption of Pb(II) from an aqueous solution using a poly(aniline-co-3-aminobenzoic acid)-based magnetic core–shell nanocomposite

, 2016
A novel poly(aniline-co-3-aminobenzoic acid)-based magnetic core–shell (PA3ABA@Fe3O4) nanocomposite was successfully synthesized via an in situ copolymerization approach of aniline and 3-aminobenzoic acid in the presence of Fe3O4 magnetic nanoparticles ...
E. Zare, M. Lakouraj, Atefeh Ramezani
semanticscholar   +1 more source

PARA-AMINOBENZOIC ACID AND INDOLE METABOLISM

Archives of Dermatology, 1948
FOR THE past few years I have in private practice prescribed paraaminobenzoic acid in a variety of dermatoses, including hair and scalp conditions. A surprisingly common subjective response to this therapy has been a feeling of greater vigor, a loss of tired or enervated states. Some patients were so impressed with this result that they sought guidance
openaire   +3 more sources

Biotransformation of para-aminobenzoic acid and salicylic acid by PMN

Free Radical Biology and Medicine, 1993
Para-aminobenzoic acid (PABA) is an essential cofactor for the production of folic acid in bacteria and has mild anti-inflammatory activity. We have recently reported that salicylic acid and benzoic acid are oxidized by stimulated granulocytes Polymorphonuclear Neutrophils (PMN).
W. Bruce Davis, Arthur L. Sagone, R. M. Husney   +2 more
openaire   +3 more sources

p-Aminobenzoic acid as a stimulator of angiogenesis

Bulletin of Experimental Biology and Medicine, 1996
p-Aminobenzoic acid (0.002 and 0.005% in a volume of 0.1 ml) stimulates angiogenesis in the yolk sac of chick embryos. It is more effective in a concentration of 0.005%, significantly increasing the length and branching of large vessels (by 27–33% and 35–43%, respectively) in comparison with the control (injection of 0.1 ml normal saline).
A A Sologub, A A Sologub, Stroeva Og, Stroeva Og, S I Akberova, S I Akberova   +5 more
openaire   +2 more sources

Synthesis of Aminobenzoic Acid Derivatives via Chemoselective Carbene Insertion into the -NH Bond Catalyzed by Cu(I) Complex.

Journal of Organic Chemistry, 2016
Phosphine ligand stabilized air-stable Cu(I) complexes have been successfully used to functionalize the aromatic aminobenzoic acids in a chemoselective manner without implementing protection and deprotection strategy under mild reaction conditions.
Kankanala Ramakrishna, C. Sivasankar
semanticscholar   +1 more source

A novel electrochemical immunosensor for aflatoxin B1 based on Au nanoparticles-poly 4-aminobenzoic acid supported graphene

Applications of Surface Science, 2020
Ling Shi, Z. Wang, Guangming Yang, Hongping Yang, Faqiong Zhao   +4 more
semanticscholar   +1 more source

Synthesis of eosin modified TiO2 film with co-exposed {001} and {101} facets for photocatalytic degradation of para-aminobenzoic acid and solar H2 production

, 2020
J. Khan, M. Sayed, N. S. Shah, Sanaullah Khan, Yuxin Zhang, Grzegorz Boczkaj, H. M. Khan, D. Dionysiou   +7 more
semanticscholar   +1 more source

Twinning in p-aminobenzoic acid

Acta Crystallographica, 1965
P. Tollin, D. G. Watson, D. W. Young, R. C. G. Killean   +3 more
openaire   +3 more sources

Vibrational study on the molecular interaction of L-Proline and Para-Aminobenzoic acid

, 2020
B. Borah, Th. Gomti Devi
semanticscholar   +1 more source