Results 51 to 60 of about 1,896 (188)
Sensors, 2008 In this paper, the electrochemical behaviour of several parabens preservatives, i.e. esters of p-hydroxybenzoic acid, methyl-, ethyl- and propyl-4-hydroxybenzoates as methyl-, ethyl- and propyl-parabens (MB, EB, and PB), has been investigated at a ...
Vasile Ostafe +5 more
doaj
Derivatives of Hydroxybenzoic Acids.
, 1934 Derivatives of Hydroxybenzoic Acids.
N. HURRY, (LATE) A. N. MELDRUM
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A Short Total Synthesis of the Daucane Sesquiterpenoid Ferutinin
European Journal of Organic Chemistry, Volume 29, Issue 24, 23 June 2026.Only nine steps were required to access the bioactive daucane sesquiterpene ester ferutinin (1) from 3‐methyl‐2‐cyclopentenone (3) and allyl p‐tolyl sulfoxide. A one‐pot 1,4‐addition/aldol sequence was used to rapidly provide diene 2 (TBS = tert‐butyldimethylsilyl), ring‐closing metathesis of which followed by alkylation and acylation gave rise to the ...
Christiane Osthaar +3 more
wiley +1 more source
Polymorphism and thermodynamics of m-hydroxybenzoic acid
European Journal of Pharmaceutical Sciences, 2006 Solution and solid-state properties of m-hydroxybenzoic acid have been investigated. Two polymorphs were found where the monoclinic modification exhibits a higher stability than the orthorhombic form. The solubility of the monoclinic polymorph was determined between 10 and 50 degrees C in methanol, acetonitrile, acetic acid, acetone, water and ethyl ...
Fredrik L, Nordström, Ake C, Rasmuson
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Recent Progress on Enzyme Immobilization: Materials, Strategies, and Applications
Food Bioengineering, Volume 5, Issue 2, Page 220-243, June 2026.Enzyme immobilization technology has undergone substantial evolution driven by advances in materials science. This review systematically examines the recent advances in enzyme immobilization since 2024, with a focused analysis of five major categories of enzyme carriers including covalent organic framework, metal‐organic frameworks, polymers, carbon ...
Shuran Wang +7 more
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Oxygen Reaction of 4-hydroxybenzoate Monooxygenase
Zeitschrift für Naturforschung B, 1972 4-hydroxybenzoate hydroxylase from Ps. putida has been studied with regard to the oxygen interaction with the reduced flavin. By rapid scanning spectrophotometry and EPR-measurements of rapidly frozen mixtures no intermediate could be established either in the presence of 4-hydroxybenzoate or the dead-end inhibitor 6-hydroxynicotinic acid.
V, Ullrich +4 more
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GeoHealth, Volume 10, Issue 6, June 2026.Abstract During the COVID‐19 pandemic, heat stress (HS) was a serious occupational risk for health‐care workers (HCWs) wearing personal protective equipment, which limits heat dissipation and increases the risk of kidney injury. In this exploratory study, we assessed HS‐related changes in the urinary metabolites of 38 HCWs working at mobile COVID‐19 ...
Cheng‐Yu Ting +9 more
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, 2000 (Z)-3-(1-Alkylidene)phthalides and 3-substituted isocoumarins, which include compounds bearing a substituent on their benzene ring, have been selectively and efficiently synthesized by a new protocol which involves: (i) the conversion of methyl 2 ...
ROSSI, RENZO +3 more
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The FEBS Journal, Volume 293, Issue 11, Page 3303-3319, June 2026.Characterization of anhydromevalonate phosphate decarboxylase, the UbiD‐family decarboxylase involved in the archaeal mevalonate pathway, was conducted. The enzyme is responsible for the biosynthesis of isoprenoids, such as archaeal membrane lipids, respiratory quinones, and dolichols.
Rino Ishikawa +9 more
wiley +1 more source
Electrokinetic potential of some hydroxybenzoic acids and hydroxybenzoic acids-β-glucan models [PDF]
, 2020 Hydroxybenzoic acids are subgroup of phenolic acids. 4-hydroxybenzoic acid, gallic acid, vanillic acid, salicylic acid are some of hydroxybenzoic acids. Structure of hydroxybenzoic acids differ because of the hydroxylation and methylations of aromatic ring. β-glucan is soluble dietary fiber constructed of glucose units. Electrokinetic potential is also
Tomac, Ivana +5 more
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