Tag: 200-300

Photobase generating monomers: synthesis, evaluation and utilization for fabricating fluorescence patterns was written by Liu, Lanlan;Guo, Jinbao;Li, Zihao;Wei, Jie. And the article was included in RSC Advances in 2014.COA of Formula: C17H10O4 This article mentions the following:

In this study, we fabricated four new photobase generating monomers, in which carbamate units functioned as the photobase generating moieties, methacrylate units served as the polymerizable groups and four different groups, succinimido, camphorquinone 3-oximino, di-2-thienyl ketoximino and difuril dioximino units, acted as photosensitive species. The effect of different photosensitive species on the photochem. behavior of the monomers was investigated in detail. The results demonstrate that, among the four monomers, succinimido methacryloxyethyl carbamate (SMC) exhibits the most stable photobase generating property. Furthermore, a copolymer containing SMC is used for a fluorescence imaging material. The fluorescence spectrum of the fluorescamine-treated irradiated copolymer film showed a strong fluorescence in the range of 420-650 nm with a fluorescence maximum at 476 nm. The patterns in the copolymer films exhibit very distinct fluorescence images with colors of blue, green and red at certain observation wavelengths. In the experiment, the researchers used many compounds, for example, 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9COA of Formula: C17H10O4).

4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9) belongs to benzofurans derivatives. Benzofuran derivatives are one of the most important oxygen-containing heterocycles. Substituted benzofurans find applications such as fluorescent sensors, oxidants, in drug discovery, and in another field of chemistry and agriculture.COA of Formula: C17H10O4

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Peptide controlled assembly of palladium nanoparticles on high-aspect-ratio gold nanorods was written by Wagner, John Tyler;Long, Analeece K.;Sumner, Michael B. III;Cockman, Ivan;Smith, Marvin;Penland, Beverly Briggs. And the article was included in Journal of Physical Chemistry C in 2020.Related Products of 38183-12-9 This article mentions the following:

The use of gold nanorods as a template for bimetallic applications, including plasmonics, imaging, and phototherapy, is widely studied due to the unique optical properties of the gold materials. Generally, gold nanorods prepared with a Ag-assisted method are used, with a typical aspect ratio (length vs. width) around 3, resulting in surface plasmons resonating within the UV-visible range. Due to these unique properties, gold nanorods are often combined with a catalytically active second metal to increase their range of applicability. The use of higher-aspect-ratio gold nanorods as a bimetallic template is an attractive alternative to the typical method as the longitudinal plasmon of these materials can be adjusted into the near-IR (NIR) range. This adjustment expands the applications of bimetallic Au nanorods in the second-NIR biol. window, which spans 1000-1700 nm. A materials-binding peptide, CPd4, is used to control the size and shape formation of palladium nanoparticles onto the surface of high-aspect-ratio gold nanorods. Through variation of the solvent used when attaching the peptide, the concentration of CPd4 retained on the nanorods can be manipulated. Higher concentrations of peptide, once palladium was added, were seen to result in smaller cubelike nanoparticles on the surface, whereas lower concentrations of peptide yielded larger spherical palladium nanoparticles. The ability to tune the size and shape of palladium nanorods on the gold nanorod surface allows for optimization of catalytic activity with applications in the NIR range. In the experiment, the researchers used many compounds, for example, 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9Related Products of 38183-12-9).

4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9) belongs to benzofurans derivatives. Benzofuran derivatives are one of the most important oxygen-containing heterocycles. Benzofurans have also made significant and distinctive contributions to biology. They exhibit several biological activities that range from antiviral, antimicrobial, antitumor, anti-inflammatory.Related Products of 38183-12-9

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Photoluminescence and infrared absorption spectra of aminated nanocrystalline diamond surface was written by Remes, Z.;Kozak, H.;Babchenko, O.;Ukraintsev, E.;Kromka, A.. And the article was included in Advanced Science, Engineering and Medicine in 2013.Computed Properties of C17H10O4 This article mentions the following:

The com. available protected gold on glass mirrors are coated by the nanocrystalline diamond (NCD) layers using the microwave based surface wave-discharge in linear antenna chem. vapor deposition (CVD) process. To demonstrate the high sensitivity of these mirrors for the surface characterization, the oxidized NCD surface is grafted by the wet amino-organosilane treatment. AFM reveals that the macroscopically homogeneous amino-organosilane coverage consists of the insulated microscopic organosilane clusters with submicron height. The presence of the amino groups on the NCD surface was tested by the photoluminescence spectroscopy in blue-green spectral region using fluorescamine reagent under UV excitation. The grazing angle reflectance Fourier transform IR (GAR FTIR) spectroscopy in the mid IR region detects with high sensitivity the characteristic mol. vibrations of the functional groups. From the signal to noise ratio follows that the GAR FTIR is a potentially suitable method for monolayer detection on surface-enhanced nanostructures. In the experiment, the researchers used many compounds, for example, 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9Computed Properties of C17H10O4).

4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9) belongs to benzofurans derivatives. Benzofurans are only weakly aromatic in nature and they are cleaved by many oxidative and reductive conditions. Benzofurans have also made significant and distinctive contributions to biology. They exhibit several biological activities that range from antiviral, antimicrobial, antitumor, anti-inflammatory.Computed Properties of C17H10O4

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Physical stability of drugs after storage above and below the glass transition temperature: Relationship to glass-forming ability was written by Alhalaweh, Amjad;Alzghoul, Ahmad;Mahlin, Denny;Bergstroem, Christel A. S.. And the article was included in International Journal of Pharmaceutics (Amsterdam, Netherlands) in 2015.Application In Synthesis of 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione This article mentions the following:

Amorphous materials are inherently unstable and tend to crystallize upon storage. In this study, we investigated the extent to which the phys. stability and inherent crystallization tendency of drugs are related to their glass-forming ability (GFA), the glass transition temperature (T_g) and thermodn. factors. Differential scanning calorimetry was used to produce the amorphous state of 52 drugs [18 compounds crystallized upon heating (Class II) and 34 remained in the amorphous state (Class III)] and to perform in situ storage for the amorphous material for 12 h at temperatures 20 °C above or below the T_g. A computational model based on the support vector machine (SVM) algorithm was developed to predict the structure-property relationships. All drugs maintained their Class when stored at 20 °C below the T_g. Fourteen of the Class II compounds crystallized when stored above the T_g whereas all except one of the Class III compounds remained amorphous. These results were only related to the glass-forming ability and no relationship to e.g. thermodn. factors was found. The exptl. data were used for computational modeling and a classification model was developed that correctly predicted the phys. stability above the T_g. The use of a large dataset revealed that mol. features related to aromaticity and π-π interactions reduce the inherent phys. stability of amorphous drugs. In the experiment, the researchers used many compounds, for example, 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9Application In Synthesis of 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione).

4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9) belongs to benzofurans derivatives.Benzofuran is one of the most significant oxygen-containing heterocycles consisting of fused benzene and furan ring, which are widely presented in various naturally occurring and synthetically active compounds. In nature, benzofurans have occupied an important role among the plant phenols & several pharmacologically active compounds.Application In Synthesis of 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

The convenient use of fluorescamine for spectrofluorimetric determination of midodrine hydrochloride in pure form and its tablets formulation: Application to content uniformity testing was written by Omar, Mahmoud A.;Nagy, Dalia M.;Halim, Monica E.. And the article was included in Luminescence in 2019.HPLC of Formula: 38183-12-9 This article mentions the following:

A novel sensitive and simple spectrofluorimetric method was developed then validated for determination of midodrine in both its authentic pure form and its tablets. This method is based on the reaction between midodrine’s aliphatic primary amine moiety with fluorescamine reagent, using borate buffer at pH 7.8 and yielding a highly fluorescent product whose fluorescence intensity was measured at 462 nm after excitation at 388 nm. This method represents the first attempt for determination of midodrine spectrofluorimetrically. A calibration curve was constructed showing that the linear range was 0.2-3.0 μg/mL. The limit of detection and limit of quantitation values were 0.06 and 0.19 μg/mL resp. The correlation coefficient (r) and the determination coefficient (r²) values were 0.9992 and 0.9984 resp. The proposed method was validated according to ICH guidelines and successfully applied for determination of midodrine in its tablets with an overall % recovery of 99.56 ± 0.95. Finally, the presented method was adapted to study the content uniformity test according to USP guidelines. In the experiment, the researchers used many compounds, for example, 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9HPLC of Formula: 38183-12-9).

4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9) belongs to benzofurans derivatives. Benzofuran derivatives have shown many biological activities, including antifungal and antimicrobial properties, and acting as antagonists of H3 receptors and angiotensin II. As benzofurans are prone to undergo ring opening of the heterocycle, examples of reduction of this type of aromatics by using dissolving metals are rather scarce.HPLC of Formula: 38183-12-9

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

TBAI/TBHP mediated oxidative cross coupling of ketones with phenols and carboxylic acids: Direct access to benzofurans was written by Santhosh Kumar, P.;Ravikumar, B.;Chinna Ashalu, K.;Rajender Reddy, K.. And the article was included in Tetrahedron Letters in 2018.Electric Literature of C10H7BrO2 This article mentions the following:

TBAI/TBHP mediated oxidative cross coupling of phenols and carboxylic acids with ketones has been reported under metal-free, base free, solvent free conditions enabling environmentally benign synthesis of aryloxyketones, acyloxy ketones and benzofurans. Phenoxyketones and acyloxylcarbonyl compounds were synthesized in good to high yields, where as benzofurans were synthesized in moderate yields. This method is operationally simple, works under mild conditions, using com. available as well as inexpensive TBAI and an oxidant TBHP. In the experiment, the researchers used many compounds, for example, 1-(5-Bromobenzofuran-2-yl)ethanone (cas: 38220-75-6Electric Literature of C10H7BrO2).

1-(5-Bromobenzofuran-2-yl)ethanone (cas: 38220-75-6) belongs to benzofurans derivatives. Benzofuran is a core structural unit found in many naturally occurring compounds with multidirectional biological activities. Benzofurans have also made significant and distinctive contributions to biology. They exhibit several biological activities that range from antiviral, antimicrobial, antitumor, anti-inflammatory.Electric Literature of C10H7BrO2

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Detection of histamine in fish and fishery products in Osaka Prefecture (Fiscal 2015 Report) was written by Awazu, Kaoru;Takatori, Satoshi;Kakimoto, Sachiko;Nomura, Chie;Masayama, Atsushi;Yamaguchi, Mizuka;Kakimoto, You;Kajimura, Keiji. And the article was included in Shokuhin Eiseigaku Zasshi in 2017.Application In Synthesis of 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione This article mentions the following:

Histamine food poisoning is caused by ingestion of spoiled fish containing high levels of histamine. This paper reports cases in which histamine was detected in Osaka prefecture in fiscal year 2015 in a survey of fish and fishery products on the market and the food poisoning. A suspected case of histamine food poisoning was also evaluated to investigate the cause and minimize further problems. Histamine in food was separated on SPE cartridge columns, and analyzed after derivatization with fluorescamine by means of HPLC-FL. Histamine was detected in some fishery products on the market and in food that had caused poisoning. The samples in which histamine was detected were semi-dried whole round herring (Urumeiwashi-maruboshi), mackerel (Saba) and sardine dumpling (Iwashi-tsumire). These foods were the main causes of histamine food poisoning according to the report of the Ministry of Health, Labour and Welfare, Government of Japan. In the experiment, the researchers used many compounds, for example, 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9Application In Synthesis of 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione).

4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9) belongs to benzofurans derivatives.Benzofuran is one of the most significant oxygen-containing heterocycles consisting of fused benzene and furan ring, which are widely presented in various naturally occurring and synthetically active compounds. Benzofurans have also made significant and distinctive contributions to biology. They exhibit several biological activities that range from antioxidant, antitubercular, antiplasmodial, insecticidal.Application In Synthesis of 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Inhibitory effect of amidino-substituted heterocyclic compounds on the amidase activity of plasmin and of high and low molecular weight urokinase and on urokinase-induced plasminogen activation was written by Geratz, J. D.;Shaver, S. R.;Tidwell, R. R.. And the article was included in Thrombosis Research in 1981.Electric Literature of C10H7BrO2 This article mentions the following:

A number of heterocyclic mono- and diamidines were examined for their inhibitory effect on urokinase and on plasmin. Interaction with both enzymes was competitive in nature, and a comparison of the inhibition constants revealed similarities as well as differences in the binding conditions between the 2 active sites. The most potent inhibitor in the series was represented by bis(5-amidino-2-benzimidazolyl)methane with K_i values of 2.3 × 10^-6M and 2.6 × 10^-6M for high-mol.-weight urokinase and plasmin, resp.,. The high- and low-mol.-weight forms of urokinase were very similar in their susceptibility to inhibition by amidines. In plasminogen activation assays, the inhibitory influence of the compounds did not parallel antiurokinase potency as expressed by the K_i values. This paradoxical behavior is still unexplained, but addnl. interaction of the compounds with plasminogen has to be considered. In the experiment, the researchers used many compounds, for example, 1-(5-Bromobenzofuran-2-yl)ethanone (cas: 38220-75-6Electric Literature of C10H7BrO2).

1-(5-Bromobenzofuran-2-yl)ethanone (cas: 38220-75-6) belongs to benzofurans derivatives. Many natural or synthetic compounds containing benzofuran skeletons have been found to possess remarkable activity as agrochemicals and pharmaceuticals. Substituted benzofurans find applications such as fluorescent sensors, oxidants, in drug discovery, and in another field of chemistry and agriculture.Electric Literature of C10H7BrO2

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Solid-phase supported profluorescent nitroxide probe for the determination of aerosol-borne reactive oxygen species was written by Sleiman, Mohamad;Destaillats, Hugo;Gundel, Lara A.. And the article was included in Talanta in 2013.Formula: C17H10O4 This article mentions the following:

Reactive oxygen species (ROS) and free radicals play important roles in the chem. transformation and adverse health effects of environmental aerosols. This work presents a simple and sensitive method for sampling and anal. of ROS using a packed column coated with a profluorescent nitroxide scavenger, proxyl fluorescamine (PF). Quantification was performed by extraction and anal. using HPLC with fluorescence detection. For comparison, the conventional method of collecting aerosols into dichlorofluorescin (DCFH) aqueous solution was used as a reference The method was successfully applied to the determination of ROS in a model secondary organic aerosol (SOA) system generated by ozonolysis of nicotine, as well as in secondhand tobacco smoke (SHS). ROS concentrations between 50-565 nmol m^-3 were detected in fresh SOA and SHS samples. After SHS aging for 22 h, 13-18% of the initial ROS mass remained, suggesting the presence of persistent ROS. The new method offers better stability and reproducibility along with sensitivity comparable to that of DCFH (method detection limit of 3.2 and 1.4 nmol m^-3 of equivalent H₂O₂ for PF and DCFH resp.). The PF probe was stable during storage at room temperature and not reactive with ozone or NO_x, whereas DCFH in the particle-collecting liquid system was strongly influenced by ozone and NO_x interferences. This case study provides a good basis for employing solid-phase supported PF for field measurement of specific ROS in other combustion systems (i.e. biomass burning, candles, and diesel exhaust) and environmental aerosols. In the experiment, the researchers used many compounds, for example, 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9Formula: C17H10O4).

4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9) belongs to benzofurans derivatives. Benzofuran is the “”parent”” of many related compounds with more complex structures. For example, psoralen is a benzofuran derivative that occurs in several plants. Benzofurans are stable towards alkali and readily polymerize on treatment with sulfuric acid, due to which they are useful for the preparation of low cost chemically relatively inert resins.Formula: C17H10O4

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem