The subcutaneous injection of 5 to 6 mg/kg of body weight of N-nitroso-N-methylurethane (NNNMU) has been reported to cause acute alveolar injury in animals. To determine the permeability characteristics of the alveolar epithelium, we employed the in vivo saline-filled dog lung model and determin...

An investigation on the comparative mutagenic activity of N-nitroso-N-methylurethane (NMU) and N-nitroso-N-ethylurethane (NEU) in Schizosaccharomyces pombe was carried out. NMU, NEU and four related compounds were tested for reversion to methionine independence on teh met4-, D 19, h- strain, NMU...

Specificity and frequency of chromosomal aberrations induced in barly chromosomes after treatment with N-nitroso-N-methylurethane (NMU) have been studied. NMU proved to be an efficient chromosomal aberration-inducing agent in barley chromosomes with clearly pronounced localized breakage. A consi...

Administration of 7.5 mg/kg body wt. of N-nitroso-N-methylurethane subcutaneously to rabbits decreased disaturated phosphatidylcholine, phosphatidylglycerol, and increased the minimum surface tension of alveolar lavage return. As compared to rabbits treated with N-nitroso-N-methylurethane alone,...

Crystalline complexes between ethylenediammonium dication and terephthalate, chloroacetate, phosphite, selenite and sulfamate anions were obtained by slow evaporation from water solution method. Room temperature powder infrared and Raman measurements were carried out. For ethylenediammonium tere...

This paper reports the use of methyl chloroacetate (MCA) as an extraction solvent for coupling liquid–liquid semimicroextraction (LLsME) with micellar electrokinetic chromatography (MEKC) through on-capillary decomposition for the separation of neutral compounds with concentration enhancement. ...

Infrared spectra of ethyl α-fluoroacetate, ethyl α-chloroacetate, ethyl α-bromoacetate and ethyl α-iodoacetate have been measured in the solid, liquid and vapor phases in the region 4000–200 cm−1. Vibrational frequency assignment of the observed bands to the appropriate modes of vibration w...

Raman spectra of butyl through hexadecyl chloroacetates have been recorded in the liquid and crystalline states. The observed spectra, supplemented by spectral data of ethyl and propyl homologues, were analysed on the basis of the relations between the wavenumbers and the number of alkyl carbons...

IR and Raman spectra of ethyl chloroacetate and three deuterated analogues, CH2ClCOOC2H5, CD2ClCOOC2H5, CH2ClCOOC2D5 and CD2ClCOOC2D5, in the liquid and crystalline states have been recorded in the 3500-100 cm−1 region. These spectra are analysed on the basis of spectral comparison both among th...

Cyclic voltammetry, controlled-potential electrolysis, and electrospray ionization–mass spectrometry have been employed to investigate and characterize the catalytic reduction of ethyl chloroacetate (ECA) by cobalt(I) salophen, [Co(I)L]−, electrogenerated at a carbon cathode in dimethylformamid...

Cyclic voltammetry, controlled-potential electrolysis, and spectroelectrochemistry have been employed to investigate and characterize the catalytic reduction of ethyl chloroacetate by cobalt(I) salen, electrogenerated at a carbon cathode in dimethylformamide containing tetraalkylammonium salts a...

The liquid–liquid equilibrium of 16 ternary systems containing an ionic liquid + n-hexane + an organic compound involved in the racemic resolution of rac-1-phenylethanol (rac-1-phenylethanol, vinyl propionate, 1-phenylethyl propionate or propionic acid) at 298.2 K and atmospheric pressure have ...

Emulsion copolymerizations of chlorotrifluoroethylene (CTFE) vinyl acetate (VAc) and vinyl propionate (VPr) under redox initiation conditions were investigated. Reactivity ratios (r) determined for VAc and CTFE in the VAc/CTFE system were 0.68 ± 0.11 and 0.04 ± 0.02, respectively. The reactivi...

Structure and optical properties for binary blends composed of biomass-based cellulose acetate propionate (CAP) and poly(vinyl acetate) (PVAc) have been studied. It is found that the blends exhibit high level of transparency, although the dynamic mechanical analysis in the solid state suggests t...

The kinetics of emulsion polymerization of vinyl propionate (VP) using the redox system potassium persulfate (KPS)/acetone-sodium bisulfite (ASBS) as redox pair initiation system is studied at 25°C. The effect of different initiator concentrations on the rate of polymerization and on the number...

The blend miscibility of cellulose propionate (CP) with poly(N-vinyl pyrrolidone-co-methyl methacrylate) (P(VP-co-MMA)) was investigated. The degree of substitution (DS) of CP used ranged from 1.6 to >2.9, and samples for the vinyl polymer component were prepared in a full range of VP:MMA compos...

SummaryInteractions between the gut microbiota, diet, and the host potentially contribute to the development of metabolic diseases. Here, we identify imidazole propionate as a microbially produced histidine-derived metabolite that is present at higher concentrations in subjects with versus witho...

Rate coefficients for the reactions of ozone with n-butyl methacrylate, ethyl crotonate and vinyl propionate have been determined at 298 ± 1 K and atmospheric pressure. The following room temperature rate coefficients (in cm3 molecule−1 s−1 units) were obtained: k1(O3 + CH2C(CH3)C(O)OC4H9) = (1...

13C nuclear magnetic resonance (n.m.r.) spectroscopy was used for the determination of the sequence distribution in vinyl alcohol-vinyl propionate (VAL-VP) copolymers prepared by two different methods: by partial alkaline hydrolysis of poly(vinyl propionate) and by partial esterification of poly...

Rate coefficients for the reactions of hydroxyl radicals with ethyl vinyl ketone and vinyl propionate were determined at 298 K and atmospheric pressure. A collapsible chamber with gas chromatography was used to perform relative kinetic determinations. The room temperature rate coefficients (in c...