Tag: M.W=250-300

Torabi, Mostafa; Yaghoobi, Fatemeh; Karimi Shervedani, Reza; Kefayat, Amirhosein; Ghahremani, Fatemeh; Rashidiyan Harsini, Parisa published the artcile< Mn(II) & Gd(III) deferrioxamine complex contrast agents & temozolomide cancer prodrug immobilized on folic acid targeted graphene/polyacrylic acid nanocarrier: MRI efficiency, drug stability & interactions with cancer cells>, Computed Properties of 112-63-0, the main research area is temozolomide cancer folic acid graphene deferrioxamine complex drug stability.

Nanocomposite systems, consisting of the reduced graphene oxide/polyacrylic acid as nanocarrier, integrated with folic acid targeting agent and further modified by Deferrioxamine-M (M: Mn2+ or Gd3+) as the diagnostic MRI contrast agents or Temozolomide as a therapeutic agent, abbreviated as (i) GNs@PAA-[DFO-Mn(II)]/FOA, (ii) GNs@PAA-[DFO-Gd(III)]/FOA, and (iii) GNs@PAA-FOA/TMZ, were synthesized, characterized, and examined for B16F10 Melanoma cells through in-vitro/in-vivo methods. Physicochem. characterization of the prepared systems was performed by using DLS, ζ-potential, TEM, FTIR, UV-vis, XPS, fluorescence, and electrochem. methods. The biocompatibility of the nanocarrier was implicated according to the histopathol. evaluation of the H&E stained sections of vital organs. Release studies at biol. pH 7.4, revealed good stability for TMZ immobilized on the GNs@PAA-FOA/TMZ nanocarrier. The in-vitro MRI studies of the GNs@PAA-[DFO-Mn(II)]/FOA and GNs@PAA-[DFO-Gd(III)]/FOA systems revealed longitudinal relaxivities of 13.00 and 20.64 mM-1 s-1, using variations of the spin-lattice relaxation rates (r1 = 1/T1) as a function of the systems concentrations, resp. These systems were studied further by the in-vivo method. The obtained images supported their ability for MRI imaging. The intracellular delivery of the system was monitored and supported by flow cytometry based on PI florescent dye loaded onto the introduced nanocarrier, GNs@PAA-FOA/PI. The interaction of the GCE-GNs@PAA-FOA/TMZ, GCE-GNs@PAA-[DFO-Mn(II)]/FOA, and GCE-GNs@PAA-[DFO-Gd(III)]/FOA systems with cancer cells was investigated through electrochem. impedance spectroscopy. The results showed a high affinity of the systems toward B16F10 Melanoma cells with the selectivity degrees of 12.96, 9.92, and 9.62, resp., compared with L929 cells.

Colloids and Surfaces, A: Physicochemical and Engineering Aspects published new progress about Antitumor agents. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Computed Properties of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Santosh, Mada SSNM; Sadavarte, Vaibhav S.; Kumar, Amit; Pande, Shrikant M.; Kulkarni, Prashant S. published the artcile< Examining the Effect of Trimethylol Propane Crosslinker on Butanetriol Trinitrate Plasticized Polycaprolactone Polymer Networks of Propellant Binder System>, Computed Properties of 112-63-0, the main research area is trimethylol propane crosslinker butanetriol trinitrate plasticize polycaprolactone; polymer propellant binder system.

The knowledge of polymer network characteristics is important to tune the properties of advanced energetic propellants based on nitrate ester plasticized polyol binder system. In this article, plasticized polyurethane networks of polycaprolactone (PCP) and hydroxyl-terminated polybutadiene (HTPB) with different crosslinker content [0 to 0.20 parts] at various stoichiometric NCOOH ratios (r-value) [0.8 to 1.0] were studied. Five numbers of polyurethane networks of 1,2,4-butanediol trinitrate (BTTN) plasticised PCP were formulated at each r value 0.8, 0.9 and 1.0 using 0, 0.05, 0.10, 0.15 and 0.20 parts of trimethylolpropane (TMP) crosslinker. Similarly, five numbers of dioctyl adipate (DOA) plasticized HTPB based polyurethane networks were formulated at r-value of 0.8. FT-IR spectra of these polyurethane networks (PUNs) were recorded for functional group identification. Stress-strain behavior of PUNs was studied for understanding the effect of TMP content and r value on mech. properties. Hard segment content of PUNs were calculated and its influence on network characteristics and mech. properties was evaluated. CLD values (ν) increased with increase of hard segment content of PUN and the values quantified by different approaches followed the trend νe (by solvent swelling method) > νne2(by Initial modulus method)>νne1 (by Mooney Rivlin method).

Propellants, Explosives, Pyrotechnics published new progress about Binders. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Computed Properties of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Heda, Jidnyasa; Niphadkar, Prashant; Mudliar, Sandeep; Bokade, Vijay published the artcile< Highly efficient micro-meso acidic H-USY catalyst for one step conversion of wheat straw to ethyl levulinate (biofuel additive)>, Category: esters-buliding-blocks, the main research area is ethyl levulinate wheat straw homogeneous catalyst physicochem property.

Et Levulinate (EL), biofuel additive can blend up to 20% with biodiesel to improve its fuel properties. Till the date, there are reports on homogeneous catalysts (H2SO4, ionic liquid) for synthesis of EL from raw biomass like wheat straw. To best of our knowledge, there is no single report on heterogeneous catalyst for one step synthesis of EL directly from wheat straw. This work is a successful attempt to use heterogeneous micro-meso acidic H-USY (post dealumination and desilication) for direct one step conversion of wheat straw to EL with higher EL yield 24.5 weight%, which is probably the highest so far.

Microporous and Mesoporous Materials published new progress about Adsorption. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Category: esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Turchaninov, V. K.; Motvienko, E. A.; Larina, L. I.; Shulunova, A. M.; Baikalova, L. V.; Lopyrev, V. A. published the artcile< Study of benzimidazoles. 8. Relationship between the UV and photoelectron spectra>, Reference of 112-63-0, the main research area is benzimidazole UV spectra photoelectron spectra; MO benzimidazole derivative energy level.

The nature of the first two long-wavelength bands in the UV spectra of 2-substituted benzimidazoles has been analyzed on the basis of photoelectron spectra. Three basic types of spectroscopic situations are typical of these compounds: (1) a change in the sequence of occupied MO of the ground state does not influence the order of excited energy levels; (2) if the π levels follow in the same order, an inversion of excited states occurs; (3) a reversal of occupied π MO of the ground state causes an inversion of excited states.

Izvestiya Akademii Nauk, Seriya Khimicheskaya published new progress about Electronic state. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Reference of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Oprescu, Elena-Emilia; Enascuta, Cristina-Emanuela; Radu, Elena; Lavric, Vasile published the artcile< Synthesis and evaluation of levulinic ester as biodiesel additives>, Formula: C19H34O2, the main research area is TiO2 La2O3 levulinic ester biodiesel additive.

In this study, the SO42-/TiO2-La2O3-Fe2O3 catalyst was prepared and tested in the conversion of fructose to Et levulinate. The catalyst was characterized from the point of view of the textural anal., FT-IR anal., acid strength distribution, X-ray powder diffraction and pyridine adsorption IR spectra. The influence of the reaction parameters on the Et levulinate yield was study. The maximum yield of 37.95% in levulinate esters was obtained at 180°C, 2 g catalyst and 4 h reaction time. The effect of Et levulinate addition to diesel-biodiesel blend in different rates, i.e, 0.5, 1, 2.5, 5 (w.t %) on d., kinematic viscosity and flash point was evaluated and compared with the European specification.

Revista de Chimie (Bucharest, Romania) published new progress about Biodiesel fuel. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Vasyliev, G.; Vorobyova, V.; Zhuk, T.; Kalinchuk, O. published the artcile< Agricultural by-product extracts as scale inhibitors of mild steel in tap water>, Computed Properties of 112-63-0, the main research area is agricultural byproduct extract scale inhibitor mild steel tap water.

Three industry byproducts, namely rapeseed pomace from the wastes of edible oil production, sugar beet pulp from the wastes of sugar production and fodder radish cake, have been tested as scale inhibitors of mild steel in tap water. Ethanol extracts were prepared by maceration and the electrochem. approach to study the scale formation was utilized, based on the measurement of oxygen reduction current during nucleation and formation of calcium carbonate in the presence of extracts Scaling time, porosity and area d. of the scale was determined and used to characterize the inhibition efficiency. Chem. compositions of extracts were analyzed by GC-MS anal. (gas chromatog. with mass selective detector by mass selective integration). The rapeseed pomace extract and fodder radish cake extract at the concentration of 10 mL/L appeared to be efficient scaling inhibitors. Sugar beet pulp extract increases the crystallization time, however the amount of deposited scale appeared to be the same as in the tap water. The scale inhibition is caused mainly by the formation of adsorbed film on the scale nucleus that blocks the surface and prevent further crystal growth.

Materials Today: Proceedings published new progress about Adsorption. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Computed Properties of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Saeki, Ken-ichi; Matsuda, Tomonari; Kato, Taka-aki; Yamada, Katsuya; Mizutani, Takaharu; Matsui, Saburo; Fukuhara, Kiyoshi; Miyata, Naoki published the artcile< Activation of the human Ah receptor by aza-polycyclic aromatic hydrocarbons and their halogenated derivatives>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is Ah receptor halogenated aza polycyclic aromatic hydrocarbon.

Aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor through which dioxins and carcinogenic polycyclic aromatic hydrocarbons cause altered gene expression and toxicity. Ten aza-polycyclic aromatic hydrocarbons (aza-PAHs), consisting of nitrogen substituted naphthalenes, phenanthrenes, chrysenes, and benzo[a]pyrenes (BaPs), were subjected to anal. of their structure-activity relationships as an AhR ligand by using a yeast AhR signaling assay, in which AhR ligand activity was evaluated as lacZ units. Most of the aza-PAHs showed similar or more potent AhR ligand activities than the corresponding parent PAHs. About a 100-fold increased in ligand activity was observed in 10-azaBaP compared with BaP. Halogen-substitution effects on AhR ligand activity in aza-polycyclic aromatics were also investigated with quinoline, benzo[f]quinoline (BfQ), benzo[h]quinoline (BhQ) and 1,7-phenanthroline (1,7-Phe). Position-specific induction of AhR ligand activity was observed in aza-tricyclic aromatic compounds, BfQ, BhQ, and 1,7-Phe, and the ratio of the ligand activities (lacZ units/μM) of monochlorinated and monobrominated aza-tricyclic aromatic compounds to those of the corresponding parent non-halogenated compounds ranged from 2.2- to 254-fold. Greatest enhancement of ligand activity was observed in 2-brominated BfQ (2-Br-BfQ), and its ligand activity was higher than that of BaP. These results suggest that even monohalogenation markedly enhances AhR ligand activity in aza-PAHs.

Biological & Pharmaceutical Bulletin published new progress about Aromatic hydrocarbon receptors Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Gorbunova, I. S.; Sobolev, A. S.; Igoshev, A. D.; Shulepova, A. D. published the artcile< Analysis of the chloro derivatives of nitrobenzene by gas-liquid chromatography>, Product Details of C19H34O2, the main research area is gas chromatog chloronitrobenzene; nitration chlorobenzene gas chromatog analysis; nitrobenzene chloro gas chromatog.

Mixtures of 1-, 2-, and 3-chloro-, 3,5-, 2,5-, and 3,4-dichloro-, 2,4,6-, 2,4,5-, and 3,4,5-trichloro-, 2,3,5,6-, 2,3,4,6-, and 2,3,4,5-tetrachloro-, and pentachloronitrobenzene were analyzed by gas chromatog. on a 20-cm × 4-mm steel column packed with 10% Apiezon L on Polychrom-1 (particle size 0.25-0.5 mm) and operated at 155° with H (2.5 L/h) as carrier gas and a thermal conductivity detector. Mixtures of 1-, 2-, and 3-chloronitrobenzene were best separated on a 10-cm × 4-mm steel column packed with 15% tricresyl phosphate and 5% H3PO4 on Chromaton N and operated at 120° with H (2.6 L/h) as carrier gas and a thermal conductivity detector. The former column was used to determine components of industrial mixtures obtained by the nitration of 1,2,4-trichlorobenzene.

Metody Analiza i Kontrolya Proizvodstva v Khimicheskoi Promyshlennosti published new progress about 112-63-0. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Product Details of C19H34O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Sinville, Rondedrick D.; Alfs, Matthew G.; Dimick Gray, Sarah M. published the artcile< Phytochemical Investigation of Pilea pumila (Clearweed), Laportea canadensis (Wood Nettle), and Boehmeria cylindrica (False Nettle): Three Members of the Urticaceae Family>, Application of C19H34O2, the main research area is Pilea pumila Laportea canadensis Boehmeria cylindrica phytochem investigation.

Phytochem. anal. of 3 members of the Urticaceae family (eg Pilea pumila, Laportea canadensis, and Boehmeria cylindrica) was conducted using GC-MS. P pumila and L canadensis have several recorded historical medicinal uses by Native American tribes, whereas B cylindrica does not. This study was conducted to understand the historical uses in terms of chem. composition Plant material, separated into aerial or root portions, was dried and extracted using either ethanol or heptane at room temperature Sterols, fatty acids and esters, terpenes and terpenoids, saturated and monounsaturated hydrocarbons, small oxygen-functionalized organic mols., and tocopherols were observed using these methods. Plant sterols composed 30.3% to 62.2% of the observed extracts, followed by fatty acids and esters ranging from 0% to 49% and terpenes and terpenoids ranging 4.56% to 33.9%. All 3 plants contained γ-sitosterol as the dominant plant sterol and palmitic, linoleic, and linolenic acids and esters. The 3 plants differed significantly in the observed terpene and terpenoid composition Germacrene D-4-ol, known to have antifungal activity, was the major terpenoid identified in P pumila (7.42%-7.76%), phytol (4.13%), α-cadinene (3.96%), and cadina-1,4-diene (5.53%) were observed in L canadensis treatments, and squalene (2.20%-7.04%), phytol (4.17%), and cadina-1,4-diene (6.68%) were observed in B cylindrica treatments. Possible rationales for Native American medicinal uses were evaluated.

Natural Product Communications published new progress about Boehmeria cylindrica. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Dinakaran, Paul M.; Kalainathan, S. published the artcile< Synthesis, growth, structural, spectral, thermal, chemical etching, linear and nonlinear optical and mechanical studies of an organic single crystal 4-chloro 4-nitrostilbene (CONS): A potential NLO material>, Application In Synthesis of 112-63-0, the main research area is growth thermal etching nonlinear optical chloro nitrostilbene absorption luminescence.

4-Chloro 4-nitrostilbene (CONS) a new organic nonlinear optical material has been synthesized. Employing slow evaporation method, good optical quality single crystals (dimensions up to 6 × 2 × 3 mm3) have been grown using Et Me ketone (EMK) as a solvent. The grown crystals have been subjected to various characterizations such as single crystal X-ray diffraction, powder XRD, Fourier Transform IR spectroscopy (FTIR), proton NMR, solid UV absorption, SHG studies. Single crystal X-ray diffraction reveals that the crystal system belongs to monoclinic with noncentrosym. space group P21. The UV-Vis absorption spectrum has been recorded and found that the cut off wavelength is 380 nm. Functional groups and the structure of the title compound have been confirmed by FTIR and 1H NMR spectroscopic analyses resp. Mol. mass of the CONS confirmed by the high resolution mass spectral anal. The thermal behavior of the grown crystal has been studied by TG/DTA anal. and it shows the m.p. is at 188.66 °C. Dislocations and growth pattern present in the grown crystal revealed by the etching study. The mech. strength of the CONS crystal has been studied by Vicker’s hardness measurement. The SHG efficiency of the grown crystal has been determined by Kurtz and Perry powder test which revealed that the CONS crystal (327 mV) has 15 times greater efficiency than that of KDP (21.7 mV).

Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy published new progress about Band gap. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application In Synthesis of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics