Amorphous solid dispersions of thiamine chloride hydrochloride (THCl) were created using a variety of polymers with different physicochemical properties in order to investigate how effective the various polymers were as THCl crystallization inhibitors. THCl:polymer dispersions were prepared by l...
Thiamine (vitamin B1) was converted into a fluorescent thiochrome by oxidation catalyzed by Hg2 + in alkaline medium. The kinetic evolution for this conversion was followed by emission-excitation spectroscopy generating a third-order dataset for each sample, and a four-way data array for a group...
An interaction of two essential nutrients, thiamine and magnesium (Mg) has been documented in in vitro and in vivo studies in mammalian metabolism. However, the role of this association in poikilothermic vertebrates, such as fish, remains elusive. The purpose of this study was first to investiga...
The results of series of collaborative studies on the relative stabilities of thiamine mononitrate and thiamine hydrochloride are reported. In a wide variety of pharmaceutical preparations considerable deterioration of the nitrate occurred except in tablets in which the loss in potency was negli...
Thiamine mononitrate, the salt formed from one mole of thiamine base and one mole of nitric acid, occurs as an anhydrous crystalline solid of low hygroscopicity, differing in this respect from thiamine hydrochloride. The stability of thiamine mononitrate was investigated in sterile solutions, co...
Cardiac beriberi, or heart failure due to thiamine deficiency, is considered rare in the developed world. The diagnosis is often only considered in limited populations such as those with chronic alcoholism. Alternatively, the disease can be mislabeled as “alcoholic cardiomyopathy” or “nonisch...
In fall 2014, steelhead trout (Oncorhynchus mykiss) migrating in the Salmon River, New York, exhibited abnormal swimming behavior and, in some cases, mortality as reported by sport fishermen. Preliminary results showed that affected individuals had low levels of thiamine in their muscle and live...
Two types of thiamine (vitamin B1) salts, thiamine mononitrate (TMN) and thiamine chloride hydrochloride (TClHCl), are used to enrich and fortify food products. Both of these thiamine salt forms are sensitive to heat, alkali, oxygen, and radiation, but differences in stability between them have ...
The selective oxidation of 1-butene to maleic anhydride over cobalt molybdate catalysts containing excess molybdenum trioxide was studied using a fixed bed, integral reactor system. Pure catalysts, as well as those containing excess molybdenum trioxide, were prepared by precipitation and by soli...
In this study, the consumption of 4-bromobenzoic acid and 4-chlorobenzoic acid by the fungus Penicillium brasilianum, an endophyte from Melia azedarach is evaluated. This fungus metabolizes these halobenzoic acids to produce three new brominated compounds, which have been isolated and characteri...
Fifty-two 2-benzoylaminobenzoate analogs were synthesized and subjected to anti-platelet aggregation assay using arachidonic acid (AA), collagen (Col), thrombin (Thr), and U46619 as inducers. The results revealed that most of 2-benzoylaminobenzoic acid derivatives showed a selectively inhibitory...
Neutrophil activation after trauma–hemorrhagic shock (T/H) has been implicated in the development of multiple organ dysfunction (MOD). In this study, we report that a small chemical compound, 2-(2-fluorobenzamido)benzoic acid ethyl ester (EFB-1), exhibited a potent inhibitory effect on the form...
The present study spotlights the key structure-property features of a chalcone derivative (2E) 3-(4-ethoxyphenyl)-1-(3-bromophenyl) prop-2-en-1-one (E3BC) for future applications in nonlinear optical devices through dual approach involving experimental and theoretical techniques. The sample has ...
The reaction of 3-methylbenzofuran-2-carbohydrazide (1) with l-phenyl-2-bromoethanone (2a) or 2-chloro-1-(4-chlorophenyl)ethanone (2b) afforded (Z)-1,2-di[(3-methylbenzofuran-2-carbohydrazido]-1-arylethenes 5a and 5b, respectively. Single crystal X-ray analyses of compound 5a proved that the rea...
:In this chapter, the structural and vibrational properties of 2-(4-methylphenyl)-4H-3,1-benzoxazin-4-one were studied by using the available experimental infrared spectrum and the hybrid B3LYP/6-31G*and B3LYP/6-311++G** methods. The bonds order, charge-transfers and stabilization energies for t...
In this work, the structural, topological and vibrational properties of the monomer and three dimers of the 2-(4-nitrophenyl)-4H-3,1-benzoxazin-4-one (NPB) derivative were studied combining the experimental FTIR and FT-Raman spectra in the solid phase with DFT calculations. Here, Natural Bond Or...
2-(4-Fluorophenyl)-quinazolin-4(3H)-one (FQ) was synthesized, and its structure was identified with 1H nuclear magnetic resonance (1H NMR), 13C nuclear magnetic resonance (13C NMR), fourier transform infrared spectroscopy (FTIR), and high resolution mass spectrometry (HRMS). From the enzyme anal...
Vanadium has been emerged as a promising agent owing to its ability to prevent several types of cancer. This study was aimed to investigate the protective role of an organovanadium complex, viz., oxovanadium(IV)-l-cysteine methyl ester (VC-IV) against cyclophosphamide (CP)-induced hepatotoxicity...
Poly(l-cysteine) bearing imidazolium salts, namely poly(S-(2-(3-(N-butylimidazolium tetrafluoroborate)propoxycarbonyl)ethyl)-l-cysteine) (P(ImBF4)LC) was synthesized by ring-opening polymerization of S-(2-(3-chloropropoxycarbonyl)ethyl)-l-cysteine based N-carboxyanhydride (CPLC-NCA), nucleophili...
Mesoporous silica SBA-15 synthesized by hydrothermal method has been used as template silica and sucrose as the carbon source, in preparation of CMK-3. This was carboxylated by ammonium persulfate ((NH4)2S2O8) and H2SO4, and functionalized with L-Cysteine methyl ester hydrochloride. The resultin...
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