Month: March 2022

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Equilibria among double sulfates and aqueous solutions of sulfuric acid of various concentrations. I.》. Authors are Montemartini, C.; Losana, L..The article about the compound:Aluminum(III) sulfate xhydratecas:17927-65-0,SMILESS:O=S(O)(O)=O.O=S(O)(O)=O.O=S(O)(O)=O.[H]O[H].[Al].[Al]).COA of Formula: Al2H8O13S3. Through the article, more information about this compound (cas:17927-65-0) is conveyed.

Because of the lack of systematic data in the literature on the solubility of sulfates in aqueous H2SO4, a study of double sulfate-H2SO4-water systems was begun with a study of the simple systems containing only a single sulfate. The exptl. data include the dilation of Al2(SO4)3.18H2O, Al2(SO4)3.Na2SO4.24H2O, Cr2(SO4)3.K2SO4.24H2O, AlCl3.6H2O, Al(NO3)3.18H2O, Cr(NO3)3.9H2O, Fe2(SO4)3 and Fe2(SO4)3.K2SO4.24H2O solutions as a function of temperature, the time required for such solutions after being heated to return to their original state, as judged by e. m. f. and internal friction determinations, and the solubility of Al2(SO4)3.18H2O, of Al2(SO4)3.Na2SO4.24H2O and of Cr2(SO4)3.K2SO4.24H2O in aqueous H2SO4 of various concentrations Data for all these determinations are given in graphical form.

If you want to learn more about this compound(Aluminum(III) sulfate xhydrate)COA of Formula: Al2H8O13S3, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(17927-65-0).

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Computed Properties of Al2H8O13S3. 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: Aluminum(III) sulfate xhydrate, is researched, Molecular Al2H8O13S3, CAS is 17927-65-0, about Alumina-coated hollow glass spheres/alumina composites.

Coating of alumina onto the surface of hollow glass spheres was accomplished by controlled heterogeneous precipitation from aqueous solutions The processing conditions were optimized to yield thin and uniform precursor coatings. After calcination, converting the precursor to alumina, the alumina-coated hollow glass spheres formed free-flowing powders that were used to produce glass sphere/alumina matrix composites with up to 35 vol% of controlled and well-dispersed closed porosity. The dielec. constants and the flexural strengths of such porous composites were determined as a function of porosity.

If you want to learn more about this compound(Aluminum(III) sulfate xhydrate)Computed Properties of Al2H8O13S3, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(17927-65-0).

Reference:
Isothiazole – Wikipedia,
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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, Journal of Materials Science called Raman microscopy study of basic aluminum sulfate, Author is Kloprogge, J. T.; Frost, R. L., which mentions a compound: 17927-65-0, SMILESS is O=S(O)(O)=O.O=S(O)(O)=O.O=S(O)(O)=O.[H]O[H].[Al].[Al], Molecular Al2H8O13S3, Computed Properties of Al2H8O13S3.

The tridecameric Al Keggin cluster [AlO4Al12(OH)24(H2O)12]7+ was prepared by forced hydrolysis of Al3+ up to an OH/Al molar ratio of 2.2. Upon addition of sulfate the tridecamer crystallized as the monoclinic basic aluminum sulfate Na0.1[AlO4Al12(OH)24(H2O)12](SO4)3.55. These crystals were studied using FT-Raman microscopy and compared to basic aluminum nitrate, Na2SO4.xH2O and Al2(SO4)3.xH2O. The Raman spectrum of basic aluminum sulfate is dominated by two broad bands which are assigned to the ν1 and ν3 bands at 981 and 1051 cm-1 of the sulfate group in the Al13 sulfate structure. Also the band at 724 cm-1 is assigned to an Al-O mode of the polymerized Al-O-Al bonds in the Al13 Keggin structure. The sharp band at 1066 cm-1 and the minor band at 1384 cm-1 are interpreted as a small amount of nitrate impurity on a different position in the structure than the nitrate present in the Al13 nitrate crystal structure, based on the shift in band position of both the ν1 sym. stretching and ν3 asym. stretching modes.

If you want to learn more about this compound(Aluminum(III) sulfate xhydrate)Computed Properties of Al2H8O13S3, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(17927-65-0).

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Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

Quality Control of (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid, is researched, Molecular C10H16O4, CAS is 560-09-8, about Resolution of the racemates of DL-carnitine. Author is Mueller, Detlef M.; Strack, Erich.

A rational and cheap method is reported for the direct resolution of DL-carnitine. D-(+)-Camphoric acid, L-(-)-camphoric acid, dibenzoyl-D-(-)-tartaric acid, or L-(+)-tartaric acid were used to sep. DL-carnitine into its optically active components. Resolution was achieved by repeated fractional crystallization in alc. solution with the appropriate acid, or by combined fractionation with a suitable pair of acids. The resulting salts can be decomposed quant. with water, dilute acids, ether/water, or ion exchanger, to give pure, optically active carnitines. The optically active acids may also be recovered pure and used again for racemate separation

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Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

Reference of (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid, is researched, Molecular C10H16O4, CAS is 560-09-8, about Synthesis, crystal structure and photoluminescent property of a 2D cadmium complex constructed by 4,4′-bis(benzimidazol-1-ylmethyl)biphenyl and camphoric acid ligands. Author is Tao, Zhao-Lin; Qin, Ling; Zheng, He-Gen.

A 2-dimensional complex [Cd(bbmb)(CAM)]n, based on a semi-rigid N-containing ligand bbmb (bbmb = 4,4′-bis(benzimidazol-1-ylmethyl)biphenyl) and H2CAM (H2CAM = camphoric acid) was synthesized by hydrothermal method and characterized by IR spectra, elemental anal., PXRD, TGA, and the crystal structure was determined by single-crystal x-ray diffraction. The complex crystallizes in the orthorhombic system, space group P212121, and features a two-dimensional (2D) layer structure. Second harmonic generation efficiency and fluorescence of the complex are also further studied. This complex has a 2nd harmonic generation response and good fluorescence property, which can be used as a 2nd-order nonlinear optical material and a potential fluorescence material.

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Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

Ornek, Dogan; Gurkan, Turker; Oztin, Cevdet published an article about the compound: Aluminum(III) sulfate xhydrate( cas:17927-65-0,SMILESS:O=S(O)(O)=O.O=S(O)(O)=O.O=S(O)(O)=O.[H]O[H].[Al].[Al] ).Quality Control of Aluminum(III) sulfate xhydrate. 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:17927-65-0) through the article.

A prilling technique was used to produce droplets of aluminum sulfate hydrates in the size range of 2-2.5mm. Production of spherical particles of aluminum sulfate hydrates by using a prilling technique has never been studied, nor carried out. The effects of the orifice geometry and hydrostatic head on drop formation were measured. The flow rates of hydrated aluminum sulfate melt through bores of 0.08 and 0.11 cm were measured for liquid heads of 10-100 cm. It was found that the break-up of a liquid jet produced particles in the size range 2.0-2.5 mm with a 0.8 mm orifice. The modified Meister and Scheele correlation, which is the first application on a high viscous fluid in air system, was found to be satisfactory for estimating the particle size obtained by the jet break-up mechanism.

If you want to learn more about this compound(Aluminum(III) sulfate xhydrate)Quality Control of Aluminum(III) sulfate xhydrate, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(17927-65-0).

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Isothiazole – Wikipedia,
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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.Wu, Yusheng; Sabbe, Katrien; De Clercq, Pierre; Vandewalle, Maurits; Bouillon, Roger; Verstuyf, Annemieke researched the compound: (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid( cas:560-09-8 ).Reference of (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid.They published the article 《Vitamin D3: synthesis of seco C-9,11,21-trisnor-17-methyl-1α, 25-dihydroxyvitamin D3 analogues》 about this compound( cas:560-09-8 ) in Bioorganic & Medicinal Chemistry Letters. Keywords: vitamin D3 analog antiproliferative antitumor calcemic effect preparation; trisnormethyldihydroxyvitamin D3 D ring analog preparation. We’ll tell you more about this compound (cas:560-09-8).

The synthesis and biol. activities of seco C-9,11,21-trisnor-17-methyl-1α,25-dihydroxyvitamin D3 analogs (D-ring analogs) are described. Synthesized analogs were evaluated for their affinity for the vitamin D receptor, in vivo calcemic effects in mice, and anti-proliferative activity in various cell lines.

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Isothiazole – Wikipedia,
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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, Article, Bioorganic & Medicinal Chemistry Letters called Discovery of potent, balanced and orally active dual NK1/NK3 receptor ligands, Author is Peters, Jens-Uwe; Hoffmann, Torsten; Schnider, Patrick; Stadler, Heinz; Koblet, Andreas; Alker, Andre; Poli, Sonia Maria; Ballard, Theresa M.; Spooren, Will; Steward, Lucinda; Sleight, Andrew J., which mentions a compound: 400777-00-6, SMILESS is O=C(OC(C)(C)C)NC1=C(I)C=C(Cl)N=C1, Molecular C10H12ClIN2O2, Synthetic Route of C10H12ClIN2O2.

During a program directed at selective NK1 receptor antagonists, we serendipitously discovered an NK1 receptor ligand with addnl. affinity for the NK3 receptor. Recognising an opportunity for a drug discovery program aiming for dual NK1/NK3 receptor antagonists, we prepared a series of analogs from a novel, versatile building block. From this series emerged compounds with high and balanced affinities for the NK1 and the NK3 receptors. Typical representatives of this series were active in the gerbil foot tapping assay after oral administration.

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Isothiazole – Wikipedia,
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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 560-09-8, is researched, Molecular C10H16O4, about A Tale of Three Carboxylates: Cooperative Asymmetric Crystallization of a Three-Dimensional Microporous Framework from Achiral Precursors, the main research direction is manganese formate adamantanedicarboxylate polymer preparation chirality camphoric glutamic; crystal structure manganese formate adamantanedicarboxylate chirality induction; gas adsorption manganese formate adamantanedicarboxylate polymer complex.Formula: C10H16O4.

Sym. crystallization of 3D porous materials constructed entirely from achiral building blocks by using enantiopure organic acids or amino acids as chirality-inducing agents is reported. Thus, the presence of D-camphor led to (+)-Mn3(HCOO)4(adc) (adc = 1,3-adamantanedicarboxylate), while L-camphor resulted in (-)-Mn3(HCOO)4(adc), which were characterized by x-ray crystallog. The chiral induction agent is essential to initiate the nucleation of the chiral crystals. The chirality control seems to be achieved through cooperative binding between enantiopure chiral reagents and achiral structural building units. Enantiopure chiral reagents control the absolute chirality of the crystals by participating in the nucleation and crystallization processes, but are later replaced with achiral ligands in the resulting crystals.

If you want to learn more about this compound((1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid)Formula: C10H16O4, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(560-09-8).

Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com

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.Mueller, Detlef M.; Strack, Erich researched the compound: (1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid( cas:560-09-8 ).HPLC of Formula: 560-09-8.They published the article 《Resolution of the racemates of DL-carnitine》 about this compound( cas:560-09-8 ) in Hoppe-Seyler’s Zeitschrift fuer Physiologische Chemie. Keywords: carnitine resolution camphorate; tartrate resolution carnitine; racemate carnitine resolution. We’ll tell you more about this compound (cas:560-09-8).

A rational and cheap method is reported for the direct resolution of DL-carnitine. D-(+)-Camphoric acid, L-(-)-camphoric acid, dibenzoyl-D-(-)-tartaric acid, or L-(+)-tartaric acid were used to sep. DL-carnitine into its optically active components. Resolution was achieved by repeated fractional crystallization in alc. solution with the appropriate acid, or by combined fractionation with a suitable pair of acids. The resulting salts can be decomposed quant. with water, dilute acids, ether/water, or ion exchanger, to give pure, optically active carnitines. The optically active acids may also be recovered pure and used again for racemate separation

If you want to learn more about this compound((1S,3R)-1,2,2-Trimethylcyclopentane-1,3-dicarboxylic acid)HPLC of Formula: 560-09-8, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(560-09-8).

Reference:
Isothiazole – Wikipedia,
Isothiazole – ScienceDirect.com