Category: 38183-12-9

An examination of analysis of histamine in food for health risk management was written by Hanaishi, Ryuji;Yamamoto, Akemi. And the article was included in Aomori-ken Kankyo Hoken Senta Kenkyu Hokoku in 2019.Formula: C17H10O4 This article mentions the following:

A rapid anal. method of histamine in food for health risk management cases was explored. As a basic technique, the present authors adopted a method already reported by Kikuchi et al. (Hiroyuki Kikuchi et al., 2012), in which the eluted solution purified by solid-phase extraction using a C18 cartridge and a strongly acidic cation exchange resin cartridge was derivatized with fluorescamine. The method was modified using tetrabutylammonium hydroxide (TBAH) as a base in the eluted solution in the purification step to shorten the time required for anal. At the time of drawing a calibration line based on the results of standard solution measurement, percent differences were calculated and the ranges of the calibration line were determined, and spike recovery rates were calculated using sardine dried whole. Using the TBAH method, sufficient recovery rates were obtained, suggesting that the TBAH method was useful as an anal. method in health risk management. 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 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 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

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

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

Simultaneous determination of 16 sulfonamide residues in beef by high performance liquid chromatography-fluorescence detection with online post-column derivatization was written by Xu, Xu;Xiao, Yuancan;Geng, Dandan;Pi, Li;Dong, Qi;Hu, Fengzu. And the article was included in Sepu in 2016.Category: benzofurans This article mentions the following:

In this study, we investigated the effects of the four kinds of derivatization reagents, including fluorescamine, o-phthaladehyde, fluorescein isothiocyanate isomer and 2,3-naphthalenedicarboxaldehyde. A high performance liquid chromatog. with fluorescence detection method for the rapid determination of 16 sulfonamide residues in beef was developed by using improved QuEChERS method for sample pretreatment and fluorescamine for online post-column derivatization. The beef samples were extracted with acetonitrile containing 1% (volume/volume) acetic acid, cleaned-up by QuEChERS method, injected for online post-column derivatization with fluorescamine, and then analyzed with fluorescence detection. Under the optimized conditions of QuEChERS and chromatog., the 16 sulfonamide residues showed good linearities in the range of 0.024-2.533 mg/L with the correlation coefficients (γ) higher than 0.992. The limits of detection of the method were 1.6 to 8.2 μg/kg. The average recoveries of the 16 sulfonamide residues were in the range of 66.6%-109.5% with the relative standard deviations from 0.9% to 9.9%. The method has the advantages of rapidity, simplicity, high sensitivity and better purification effect. It is suitable for the rapid determination of the sulfonamide residues in beef. In the experiment, the researchers used many compounds, for example, 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9Category: benzofurans).

4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9) 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.Category: benzofurans

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

A convenient, bio-inspired approach to the synthesis of multi-functional, stable fluorescent silica nanoparticles using poly(ethylene-imine) was written by Bauer, Christina A.;Chi, Gregory;Likens, Olivia Q.;Brown, Sandra M.. And the article was included in Nanoscale in 2017.Synthetic Route of C17H10O4 This article mentions the following:

Branched poly(ethylene-imine) can be tagged with luminescent dyes (e.g., fluorescein isothiocyanate and tetramethylrhodamine isothiocyanate) and used to precipitate spherical silica particles from 10s-to-100s of nm diameter size under mild conditions. These dye-PEI/SiO₂ nanoparticles are highly compatible with polar solvents to give bright fluorescent suspensions, and detailed photophys. characterization reveals well-separated dye moieties with an approx. homogeneous dispersion of dye-PEI conjugate throughout the SiO₂ matrix. Reaction of PEI amine groups incorporated at the particle surface affords a simple method for post-synthesis functionalization of these materials, and the formation of FITC/Eosin-Y fluorescence resonance energy transfer pair-tagged particles and SiO₂@Au core-shell nanocomposites using this strategy is demonstrated. This bio-inspired approach to multi-functional SiO₂ nanoparticles provides a range of potential advantages over traditional “inorganic” syntheses of similar materials, as it proceeds through a scalable, single-step reaction using inexpensive reagents, enables efficient incorporation of luminescent species into the resulting particles with very limited dye aggregation, and provides nanoparticles that do not require post-synthesis modification for further conjugation with species of interest. The method offers a simple means to generate complex nanocomposites, whereby a host of desired species can be incorporated both inside and on the surface of biocompatible SiO₂ nanoparticles. In the experiment, the researchers used many compounds, for example, 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9Synthetic Route of C17H10O4).

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. 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.Synthetic Route of C17H10O4

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Distinct Morphological Transitions of Photoreactive and Thermoresponsive Vesicles for Controlled Release and Nanoreactors was written by Yao, Chenzhi;Wang, Xiaorui;Liu, Guhuan;Hu, Jinming;Liu, Shiyong. And the article was included in Macromolecules (Washington, DC, United States) in 2016.Electric Literature of C17H10O4 This article mentions the following:

The construction of intelligent vesicular nanocarriers and nanoreactors has received increasing interests due to their potential in mimicking natural counterparts such as cells and organelles. Herein, we report thermoresponsive and photoreactive vesicles could be fabricated from amphiphilic block copolymers (BCPs), poly(N-isopropylacrylamide)-b-poly(2-((((2-nitrobenzyl)oxy)carbonyl)amino)ethyl acrylate) (PNIPAM-b-PNBOCA), which were synthesized via consecutive reversible addition-fragmentation chain transfer (RAFT) polymerizations The resulting BCPs self-assembled into vesicles when temperatures were lower than the lower critical solution temperature (LCST) of PNIPAM blocks (defined as LCST₀). However, the resulting vesicles irreversibly formed collapsed vesicles upon temperature rise (T > LCST₀), and a further temperature increase (T > T_agg,0) led to the formation of irregular aggregates of collapsed vesicles. On the other hand, upon UV irradiation, the initially hydrophobic PNBOCA bilayers underwent aminolysis-induced crosslinking and hydrophobic-to-hydrophilic transition, resulting in elevated LCST (defined as LCST_uv). Although the thermo-induced collapse of PNIPAM coronas (T > LCST_uv) and the formation of aggregates of cross-linked vesicles (T > T_agg,uv) were observed, the initially vesicular morphol. could be restored when cooling to lower than LCST_uv, as opposed to irreversible morphol. transition without UV irradiation The vesicular assemblies were engineered as nanocarriers for both hydrophilic (doxorubicin hydrochloride, DOX) and hydrophobic (Nile red, NR) payloads. The corelease profiles could be delicately regulated by both temperature variations and UV irradiation Interestingly, DOX release could be also regulated by thermo-induced vesicle collapse without recourse to UV irradiation or by near-IR (NIR) irradiation-induced vesicle collapse in the presence of photothermal agents coloaded within vesicular interiors as a result of the relatively low glass transition temperature of PNBOCA blocks. Moreover, nanoreactors were constructed by loading glucose oxidase (GO_x) into the aqueous interiors of the vesicles, allowing for activating fluorogenic reactions by UV irradiation and temperature change. In the experiment, the researchers used many compounds, for example, 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9Electric Literature 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. Substituted benzofurans find applications such as fluorescent sensors, oxidants, in drug discovery, and in another field of chemistry and agriculture.Electric Literature of C17H10O4

Referemce:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem

Direct Production of Microstructured Surfaces for Planar Chromatography Using 3D Printing was written by Macdonald, Niall P.;Currivan, Sinead A.;Tedone, Laura;Paull, Brett. And the article was included in Analytical Chemistry (Washington, DC, United States) in 2017.Reference of 38183-12-9 This article mentions the following:

Through optimization of the printing process and orientation, a suitably developed surface area was realized upon a 3-dimensional printed polymer substrate to facilitate chromatog. separations in a planar configuration. Using an Objet Eden 260VS 3-dimensional printer, polymer thin layer chromatog. platforms were directly fabricated without any addnl. surface functionalization and successfully applied to the separation of various dye and protein mixtures The print material was characterized using gas chromatog. coupled to mass spectrometry and spectroscopic techniques such as IR and Raman. Preliminary studies included the separation of colored dyes, whereby the separation performance could be visualized optically. Subsequent separations were achieved using fluorescent dyes and fluorescently tagged proteins. The separation of proteins was affected by differences in the isoelec. point (pI) and the ion exchange properties of the printed substrate. The simple chromatog. separations are the 1st achieved using an unmodified 3-dimensional printed stationary phase. In the experiment, the researchers used many compounds, for example, 4-Phenyl-3H,3’H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione (cas: 38183-12-9Reference 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 have shown many biological activities, including antifungal and antimicrobial properties, and acting as antagonists of H3 receptors and angiotensin II. In nature, benzofurans have occupied an important role among the plant phenols & several pharmacologically active compounds.Reference 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

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

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