Tag: M.W=100-200

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Acta Poloniae Pharmaceutica called Kinetic studies of photodegradation of nitroimidazole derivatives in solutions, Author is Marciniec, Barbara; Bugaj, Andrezej, which mentions a compound: 4897-25-0, SMILESS is C1=NC(=C(Cl)[N]1C)[N+]([O-])=O, Molecular C4H4ClN3O2, Recommanded Product: 4897-25-0.

Kinetics of the photodegradation of metronidazole, ornidazole, and tinidazole as well as of 1-methyl-4-nitro-5-chloro-, 1-methyl-4-nitro-5-hydroxy-, 1-methyl-4-nitro-5-mercapto-, and 2-methyl-5-nitroimidazole was studied in aqueous solutions The process was a 1st temporal order reaction with a complex mechanism. A linear dependence was found between the t0.5 values and the squared reciprocal of electron d. Photochem. stability of the investigated nitroimidazoles depended on electrophilicity of the substituent on C(5).

Different reactions of this compound(5-Chloro-1-methyl-4-nitroimidazole)Recommanded Product: 4897-25-0 require different conditions, so the reaction conditions are very important.

Reference:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 4556-23-4, is researched, SMILESS is SC1=CC=NC=C1, Molecular C5H5NSJournal, Guangpuxue Yu Guangpu Fenxi called Probing SERS with MPY molecules from LaNiO3/Au nanofibers, Author is Zhao, Qing-nan; Song, Wei, the main research direction is SERS thiopyridine mol lanthanum nickelate gold nanofiber.Formula: C5H5NS.

The polymer nanofibers prepared by electrospinning could be used as surface-enhanced Raman substrate due to its advantages of high surface area/volume ratio, high porosity, light weight and good mech. strength, and could also be used to study the SERS influence of adsorbed probe mols. on the surface of gold-doped nanofibers. Recently, our research group proposed a SERS substrate for polyacrylonitrile/Ag nanoparticles composite nanofibers prepared by electrospinning technol., which could achieve uniform doping of metal nanoparticles in the nanofibers and better SERS enhancement of probe mols. Based on the above research results, we designed the SERS substrate of LaNiO3 nanofibers doped with Au nanoparticles, and discussed the SERS influence of the probe mol. 4-thiopyridine (MPY) of LaNiO3/Au nanofibers.

The article 《Probing SERS with MPY molecules from LaNiO3/Au nanofibers》 also mentions many details about this compound(4556-23-4)Formula: C5H5NS, you can pay attention to it, because details determine success or failure

Reference:
Nitrile – Wikipedia,
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Leong, Yong Xiang; Lee, Yih Hong; Koh, Charlynn Sher Lin; Phan-Quang, Gia Chuong; Han, Xuemei; Phang, In Yee; Ling, Xing Yi published an article about the compound: Pyridine-4-thiol( cas:4556-23-4,SMILESS:SC1=CC=NC=C1 ).Application In Synthesis of Pyridine-4-thiol. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:4556-23-4) through the article.

Integrating machine learning with surface-enhanced Raman scattering (SERS) accelerates the development of practical sensing devices. Such integration, in combination with direct detection or indirect analyte capturing strategies, is key to achieving high predictive accuracies even in complex matrixes. However, in-depth understanding of spectral variations arising from specific chem. interactions is essential to prevent model overfit. Herein, we design a machine-learning-driven “”SERS taster”” to simultaneously harness useful vibrational information from multiple receptors for enhanced multiplex profiling of five wine flavor mols. at parts-per-million levels. Our receptors employ numerous noncovalent interactions to capture chem. functionalities within flavor mols. By strategically combining all receptor-flavor SERS spectra, we construct comprehensive “”SERS superprofiles”” for predictive analytics using chemometrics. We elucidate crucial mol.-level interactions in flavor identification and further demonstrate the differentiation of primary, secondary, and tertiary alc. functionalities. Our SERS taster also achieves perfect accuracies in multiplex flavor quantification in an artificial wine matrix.

The article 《Surface-Enhanced Raman Scattering (SERS) Taster: A Machine-Learning-Driven Multireceptor Platform for Multiplex Profiling of Wine Flavors》 also mentions many details about this compound(4556-23-4)Application In Synthesis of Pyridine-4-thiol, you can pay attention to it, because details determine success or failure

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Nitrile – Wikipedia,
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The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Pyridine-4-thiol, is researched, Molecular C5H5NS, CAS is 4556-23-4, about Electron-enriched thione enables strong Pb-S interaction for stabilizing high quality CsPbI3 perovskite films with low-temperature processing, the main research direction is caesium lead iodide perovskite thin film crystallization fabrication.COA of Formula: C5H5NS.

Cesium lead iodide (CsPbI3) perovskite is a promising photovoltaic material with a suitable bandgap and high thermal stability. However, it involves complicated phase transitions, and black-phase CsPbI3 is mostly formed and stabilized at high temperatures (200-360°C), making its practical application challenging. Here, for the first time, we have demonstrated a feasible route for growing high quality black-phase CsPbI3 thin films under mild conditions by using a neutral mol. additive of 4(1H)-pyridinethione (4-PT). The resulting CsPbI3 thin films are morphol. uniform and phase stable under ambient conditions, consisting of micron-sized grains with oriented crystal stacking. With a range of characterization experiments on intermol. interactions, the electron-enriched thione group in 4-PT is distinguished to be critical to enabling a strong Pb-S interaction, which not only influences the crystallization paths, but also stabilizes the black-phase CsPbI3via crystal surface functionalization. The 4-PT based CsPbI3 achieves 13.88% power conversion efficiency in a p-i-n structured device architecture, and encapsulated devices can retain over 85% of their initial efficiencies after 20 days of storage in an ambient environment, which are the best results among fully low-temperature processed CsPbI3 photovoltaics.

The article 《Electron-enriched thione enables strong Pb-S interaction for stabilizing high quality CsPbI3 perovskite films with low-temperature processing》 also mentions many details about this compound(4556-23-4)COA of Formula: C5H5NS, you can pay attention to it or contacet with the author([email protected]; [email protected]; [email protected]; [email protected]; [email protected]; [email protected]) to get more information.

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Nitrile – Wikipedia,
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In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Use of chemicals for the preservation of polychromed wood, published in 1988-01-31, which mentions a compound: 4897-25-0, mainly applied to polychrome wood preservation chem, SDS of cas: 4897-25-0.

Polychromed wood was examined and pigments used were applied to Picea excelsa blocks on bases used for making original art objects. The samples were impregnated with Antox W (p-coumylophenol + methoxychlor), Xyligen Al (I), Vitavax, or PCMNI (II) and effects on dominant wavelength, colorimetric purity, and the degree of clarity were determined I caused the least darkening of the pigments.

The article 《Use of chemicals for the preservation of polychromed wood》 also mentions many details about this compound(4897-25-0)SDS of cas: 4897-25-0, you can pay attention to it, because details determine success or failure

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Nitrile – Wikipedia,
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Reference of Pyridine-4-thiol. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: Pyridine-4-thiol, is researched, Molecular C5H5NS, CAS is 4556-23-4, about Low temperature-boosted high efficiency photo-induced charge transfer for remarkable SERS activity of ZnO nanosheets.

Improving the photo-induced charge transfer (PICT) efficiency is the key factor for boosting the surface-enhanced Raman scattering (SERS) performance of semiconductor nanomaterials. Introducing plentiful surface defect states in porous ZnO nanosheets (d-ZnO NSs) effectively provides addnl. charge transfer routes for highly efficient PICT within the substrate-mol. system. Significantly, an interesting phenomenon of low temperature-boosted SERS activity of these d-ZnO NSs is consequently observed The enhanced SERS activity can be attributed to the efficient PICT processes due to the significant reduction of non-radiative recombination of surface defects at a low temperature This is carefully investigated through combining in situ low-temperature SERS measurements with temperature-dependent photoluminescence (PL) emission spectroscopy. Our results clearly demonstrate that the weakened lattice thermal vibration at a low temperature effectively suppresses the phonon-assisted relaxation and reduces carrier traps, resulting in the increase of PL intensity. The decreased traps of photo-induced electrons at surface defect states effectively facilitate the PICT efficiency within the substrate-mol. system. An ultrahigh enhancement factor of 7.7 x 105 and low limit of detection (1 x 10-7 M) for a 4-mercaptopyridine mol. at a temperature of 77 K are successfully obtained. More importantly, the low temperature-enhanced SERS effect is also obtainable in other metal oxide semiconductors, such as d-TiO2 and d-Cu2O nanoparticles. To the best of our knowledge, this is the first time the low temperature-boosted SERS activity of semiconductors has been observed This study not only provides a deep insight into the chem. SERS mechanism, but also develops a novel strategy for improving semiconductor SERS sensitivity. The strong SERS activity at a low temperature reported here may open new avenues for developing non-metal SERS substrates with new functionalities, especially for the research on cryogenic sensing and hypothermal medicine.

Different reactions of this compound(Pyridine-4-thiol)Reference of Pyridine-4-thiol require different conditions, so the reaction conditions are very important.

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Nitrile – Wikipedia,
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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 5-Chloro-1-methyl-4-nitroimidazole(SMILESS: C1=NC(=C(Cl)[N]1C)[N+]([O-])=O,cas:4897-25-0) is researched.Recommanded Product: 117918-23-7. The article 《Occupational contact dermatitis: New allergens》 in relation to this compound, is published in Dermatology at the Millennium, The Proceedings of the World Congress of Dermatology, 19th, Sydney, Australia, June 15-20, 1997. Let’s take a look at the latest research on this compound (cas:4897-25-0).

A review with 9 references concerning allergens and products recently discussed by the authors (5-chloro-1-methyl-4-nitroimidazole, 3-dimethylaminopropylamine, fungal α-amylase, chloramine-T solution, and tri-cure glass ionomer) which cause allergic contact urticaria and allergic contact dermatitis upon exposure is given.

Different reactions of this compound(5-Chloro-1-methyl-4-nitroimidazole)Computed Properties of C4H4ClN3O2 require different conditions, so the reaction conditions are very important.

Reference:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Recyclable Raman chip for detection of trace Mercury ions, published in 2020-06-15, which mentions a compound: 4556-23-4, mainly applied to pyridinethiol maercury ion Raman mol orientation recyclable chip, Computed Properties of C5H5NS.

Due to enrichment effect of Mercury ions (Hg2+), even if the concentration of Hg2+ is very low, it will do harm to human health. Precise detection of trace Hg2+ is important for environment protection and human health monitoring. In this work, gold nanoparticles (AuNPs) are immobilized on the surface of ITO with aid of inositol-hexaphosphate as linker agent and then 4-pyridinethiol (4-MPy) is decorated to form a 4-MPy/AuNPs/ITO chip. 4-MPy in the chip acts two roles involving the capture agent for Hg2+ and Raman signal reporter. With the adding of Hg2+, the linear increase of SERS response of 4-MPy is in the range from 1.0 ppt to 100 ppb (R2 = 0.9896) and the limit of detection could be down to 1 precipitate The mechanism of the Raman chip was also explored by mol. simulation. It is found that the interaction between Hg2+ and the nitrogen atoms changes the electron distribution of pyridine ring and induces reorientation of the 4-MPy mols. tending to more perpendicular adsorption fashion with respect to AuNPs surface, which leads to enhancement of the intensity of the pyridine breathing vibration peak at 1093 cm-1. The as-prepared SERS sensor chip features excellent stability and reproducibility as well as could be reused. The rapid 4-MPy/AuNPs/ITO-chip-based Raman protocol with capability against interference is competent for monitoring trace Hg2+ in river water samples.

Different reactions of this compound(Pyridine-4-thiol)Computed Properties of C5H5NS require different conditions, so the reaction conditions are very important.

Reference:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Pyridine-4-thiol( cas:4556-23-4 ) is researched.Recommanded Product: Pyridine-4-thiol.Ren, Xuanhe; Tang, Shanyu; Li, Longjia; Li, Jiao; Liang, Helong; Li, Ganzhong; Yang, Guanyu; Li, Heng; Yuan, Bingxin published the article 《Surfactant-Type Catalyst for Aerobic Oxidative Coupling of Hydrazine with Thiol in Water》 about this compound( cas:4556-23-4 ) in Journal of Organic Chemistry. Keywords: PEG functionalized nitrogen ligand surfactant type catalyst; aerobic oxidative coupling hydrazine thiol water surfactant catalyst. Let’s learn more about this compound (cas:4556-23-4).

A series of PEG-functionalized nitrogen ligands were developed to conduct an aerobic oxidative cross-coupling reaction between alkyl- or aryl-hydrazines with thiols in water. This surfactant-type catalyst enables high efficiencies and selectivities, while tolerating a large variety of functional groups. The mother liquor is still catalytically active after five runs.

The article 《Surfactant-Type Catalyst for Aerobic Oxidative Coupling of Hydrazine with Thiol in Water》 also mentions many details about this compound(4556-23-4)Recommanded Product: Pyridine-4-thiol, you can pay attention to it, because details determine success or failure

Reference:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Material und Organismen called Toxicity of imidazole derivatives to selected fungi of the classes Ascomycetes and Deuteromycetes, Author is Gajdzinski, Maciej; Mroczkiewicz, Andrzej, which mentions a compound: 4897-25-0, SMILESS is C1=NC(=C(Cl)[N]1C)[N+]([O-])=O, Molecular C4H4ClN3O2, Reference of 5-Chloro-1-methyl-4-nitroimidazole.

The lowest concentrations of imidazole derivatives that showed fungicidal effects on 5 selected mold fungi (Ascomycetes and fungi imperfecti) were determined by the agar plate method. Those imidazole derivatives that had halo and a NO2 group on the ring were the most toxic towards these fungi. 5-Chloro-1-methyl-4-nitroimidazole  [4897-25-0] was particularly toxic; quantities of 600-1000 ppm added to the nutrient agar completely inhibited growth.

The article 《Toxicity of imidazole derivatives to selected fungi of the classes Ascomycetes and Deuteromycetes》 also mentions many details about this compound(4897-25-0)Reference of 5-Chloro-1-methyl-4-nitroimidazole, you can pay attention to it, because details determine success or failure

Reference:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts