Bromamine acid (1-amino-4-bromo-2-anthraquinonesulphonic acid) is one of the most important intermediates in the synthesis of acid dyes. Apart from quinizarin and leucoquinizarin, more acid dyes have been produced from bromamine acid by replacement of the bromine atom with aryl amino groups than...

The solubility of 1-aminoanthraquinone (Smoke Orange G) and 1-nitroanthraquinone in supercritical carbon dioxide (scCO2) was measured at the temperatures (323.15, 353.15 and 383.15) K and over the pressure range of (12.5–25.0) MPa by a flow type apparatus. Mole fraction solubility of 1-aminoant...

Maprotiline (N-methyl-9,10-ethanoanthracene-9(10H)-propanamine) is a tetra cyclic antidepressant. It is a highly selective inhibitor of norepinephrine reuptake. The solid and solution in CCl4 and methanol infrared spectra of maprotiline were recorded. The fully optimized equilibrium structure of...

A potentiometric ion selective electrode (ISE) was developed to determine the maprotiline, a tetracyclic pharmaceutical drug substance. Maprotiline-Tetraphenylborate ion pair was synthesized. Elemental analysis results showed that combination rate of Maprotiline-Tetraphenylborate ion pair was 1:...

Pyrolysis is a promising technique for the recovery of useful gas, tar, and solid products from biomass waste. However, the low tar yields obtained from lignocellulosic biomass are a significant drawback. To enhance tar yields, sugarcane bagasse, which is the most abundant agricultural waste in ...

Pyroligneous acid (PA) is a by-product of bio-oil, which is obtained by pyrolysis of the wood. This product has been tested for use in several areas, such as agriculture, as a promising green herbicide; however, there are few scientific data regarding its environmental impacts. For this study, a...

Inelastic neutron scattering from the 4-methylpyridine crystal (C6H7N) and its perdeuterated analogue (C6D7N) were recorded at 5 K in the 0–9.5 cm−1 range. The main intensities appear at 4.16 and 0.8 cm−1 for the hydrogenated and deuterated compounds, respectively. They are ascribed to the meth...

Inelastic neutron scattering spectra in the 500 μeV region of a series of mixtures of totally hydrogenated and totally deuterated 4-methylpyridine (4MP-h7 and 4MP-d7) with relative 4MP-h7 concentrations of 100%, 85%, 65%, 50%, 26%, 20% and 5% are presented at 2.5 K. In pure 4MP-h7 the spectrum ...

Two donor-acceptor (D-A) metal free dyes 3-{4-[Bis-(4-pyridin-2-ylethynyl-phenyl)-amino]-phenyl}-2-cyano-acrylic acid (D1) and 3-{4-[Bis-(4-pyridin-3-ylethynyl-phenyl)-amino]-phenyl}-2-cyano-acrylic acid (D2) have been designed, synthesized and used as sensitizers for the dye sensitized solar ce...

D-galactose crystal, a monosaccharide of biological importance, was investigated by using Raman spectra in a diamond-anvil cell at the spectra range of 3600-50 cm−1 for pressure up to 30.6 GPa. The spectra show that D-galactose experienced about three phase modifications, around 4.9 GPa, in the ...

L-Arabinose isomerase isolated from Geobacillus stearothermophilus (GSAI) was modified to improve its substrate specificity for D-galactose for the production of D-tagatose, a potential reduced-energy sweetener. Among the selected residues, mutation at residue 18 produced a mutant strain, H18T, ...

Aging; a biological phenomenon characterized by progressive decline in cellular functions, is considered as a major risk factor of various liver diseases that plays as an adverse prognostic role, thus increasing mortality rate. However, diet is the main environmental factor that has a major impa...

Photovoltaics (PV), which directly convert solar energy into electricity generally using semiconductors, offer a practical and sustainable solution to the current energy shortage and environmental pollution crisis. Photovoltaic applications of metal-organic frameworks (MOFs) belong to a relative...

Moisture or water stable, visible light absorbing, semiconducting metal-organic frameworks are useful in utilizing the inexhaustible and clean solar energies. By applying mixed ligands of an imidazole, 1,4-bis(2-methylimidazol-1-yl)benzene (BMIB) and the tetrakis(4-carboxyphenyl)silane (H4TCS), ...

An organocatalyzed approach to the asymmetric synthesis of 2-aryl-2,3-dihydro-4-quinolones using amino-acid derived sulfonamides as organocatalysts, which can be easily prepared starting from l-proline, l-alanine, and l-phenylalanine, has been developed in high yields (up to 92%) and with modera...

Platinum-based drugs, mainly cisplatin, are employed for the treatment of solid malignancies. However, cisplatin treatment often results in the development of chemoresistance, leading to therapeutic failure. Here, the antitumor activity of different trans-sulfonamide platinum complexes in a pane...

The product of two-electron reduction of 3-thiohydroxy 2-oxo propanoic 1 acid is either β-mercaptolactate or pyruvate when the CS cleaved. The first pathway predominates in acidic media, the second in slightly basic media. Comparison of the polarographic and UV and NMR spectrometric behaviour...

A quantitative determination of 3-mercaptolactic acid was performed after its conversion into S-aminoethylmercaptolactic acid by reacting with excess of 2-bromoethylamine. S-aminoethylmercaptolactic acid was quantitated by an amino acid analyzer. Other thiols were shown not to interfere with the...

BackgroundCyanate is a uremic toxin formed principally via spontaneous urea biodegradation. Its active isoform, isocyanate, is capable of reaction with proteins by N and S carbamoylation, which influences their structure and function. Sulfurtransferases implicated in anaerobic cysteine transform...

A library of five hither-to-unknown unsymmetrical N,N′-diiminoacenaphthylenes, 1-[2,4,6-{(4-FC6H4)2CH}3C6H4N]-2-(ArN)C2C10H6 (Ar = 2,6-Me2Ph L1, 2,6-Et2Ph L2, 2,6-i-Pr2Ph L3, 2,4,6-Me3Ph L4 and 2,6-Et2-4-Me-Ph L5), have been synthesized and used to prepare their corresponding nickel(II) halide ...