Tag: 300-400

Lipid composition, fatty acids and sterols in the seaweeds Ulva armoricana, and Solieria chordalis from Brittany (France): an analysis from nutritional, chemotaxonomic, and antiproliferative activity perspectives was written by Kendel, Melha;Wielgosz-Collin, Gaetane;Bertrand, Samuel;Roussakis, Christos;Bourgougnon, Nathalie;Bedoux, Gilles. And the article was included in Marine Drugs in 2015.Electric Literature of C15H29BrO2 This article mentions the following:

Lipids from the proliferative macroalgae Ulva armoricana (Chlorophyta) and Solieria chordalis (Rhodophyta) from Brittany, France, were investigated. The total content of lipids was 2.6% and 3.0% dry weight for U. armoricana and S. chordalis, resp. The main fractions of S. chordalis were neutral lipids (37%) and glycolipids (38%), whereas U. armoricana contained mostly neutral lipids (55%). Polyunsaturated fatty acids (PUFA) represented 29% and 15% of the total lipids in U. armoricana and S. chordalis, resp. In both studied algae, the phospholipids were composed of PUFA for 18%. In addition, PUFA were shown to represent 9% and 4.5% of glycolipids in U. armoricana and S. chordalis, resp. The essential PUFA were 16:4n-3, 18:4n-3, 18:2n-3, 18:2n-6, and 22:6n-3 in U. armoricana, and 20:4n-6 and 20:5n-3 in S. chordalis. It is important to notice that six 2-hydroxy-, three 3-hydroxy-, and two monounsaturated hydroxy fatty acids were also identified and may provide a chemotaxonomic basis for algae. These seaweeds contained interesting compounds such as squalene, 浼?tocopherol, cholest-4-en-3-one and phytosterols. The antiproliferative effect was evaluated in vitro on human non-small-cell bronchopulmonary carcinoma line (NSCLC-N6) with an IC₅₀ of 23 娓璯/mL for monogalactosyldiacylglycerols isolated from S. chordalis and 24 娓璯/mL for digalactosyldiacylglycerols from U. armoricana. These results confirm the potentialities of valorization of these two species in the fields of health, nutrition and chemotaxonomy. In the experiment, the researchers used many compounds, for example, 15-Bromopentadecanoic acid (cas: 56523-59-2Electric Literature of C15H29BrO2).

15-Bromopentadecanoic acid (cas: 56523-59-2) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.Electric Literature of C15H29BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

GC-MS analysis of fatty acids of Irvingia gabonensis seed fat was written by Okore, V. C.;Udeala, O. K.. And the article was included in Nigerian Journal of Natural Products and Medicine in 1997.Quality Control of 15-Bromopentadecanoic acid This article mentions the following:

Dika fat is the name given to the waxy material obtained from the seeds of Irvingia gabonensis (Fam. Irvingiaceae). The fat has been a subject of research in recent years, and it has been evaluated as a component of different drug delivery systems . Despite the impressive properties of this wax as have been established in the earlier studies, information on its chem. composition is rather scanty. Chem. characterization of the wax was done by GC-MS technique. The dika fat was obtained by solvent extraction, using the method described by Udeala et al (1980). A Fisons Trio 200 Quadrupole GC-MS instrument fitted with a 30m 鑴?0.32mm (i.d.) OV-1 capillary column, was used for the anal. The column temperature was programmed to rise from 100鎺矯 to 280鎺矯 at the rate of 5鎺?min. The carrier gas was helium flowing at the rate of 1.5ml/min. Ionization voltage of 70eV was applied. The solvent for dika fat was n-hexane. The identity of the components of dika fat was confirmed by a combination of computer-aided identification, the eight peak index of mas spectra as well as co-chromatog. The gas chromatogram of dika fat reveals seven peaks representing major components and about the same number of peaks for the minor components. In the experiment, the researchers used many compounds, for example, 15-Bromopentadecanoic acid (cas: 56523-59-2Quality Control of 15-Bromopentadecanoic acid).

15-Bromopentadecanoic acid (cas: 56523-59-2) belongs to organobromine compounds. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. Commercially available organobromine pharmaceuticals include the vasodilator nicergoline, the sedative brotizolam, the anticancer agent pipobroman, and the antiseptic merbromin. Quality Control of 15-Bromopentadecanoic acid

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Azide-Modified Membrane Lipids: Synthesis, Properties, and Reactivity was written by Lindner, Sindy;Gruhle, Kai;Schmidt, Rico;Garamus, Vasil M.;Ramsbeck, Daniel;Hause, Gerd;Meister, Annette;Sinz, Andrea;Drescher, Simon. And the article was included in Langmuir in 2017.Computed Properties of C15H29BrO2 This article mentions the following:

In the present work, we describe the synthesis and the temperature-dependent behavior of photoreactive membrane lipids as well as their capability to study peptide-lipid interactions. The modified phospholipids contained an azide group either in the middle part or at the end of an alkyl chain and also differed in the linkage (ester vs. ether) of the 2nd alkyl chain. The temperature-dependent aggregation behavior of the azidolipids was studied using differential scanning calorimetry (DSC), FTIR spectroscopy, and SAXS. Aggregate structures were visualized by stain and cryo-transmission electron microscopy (TEM) and were further characterized by dynamic light scattering (DLS). We showed that the position of the azide group and the type of linkage of the alkyl chain at the sn-2 position of the glycerol influenced the type of aggregates formed as well as their long-term stability: azidolipids P10AzSPC and r12AzSHPC showed the formation of extrudable liposomes, which were stable in size during storage. In contrast, azidolipids that carry a terminal azido moiety either formed extrudable liposomes, which showed time-dependent vesicle fusion (P15AzPdPC), or self-assembled in large sheet-like, non-extrudable aggregates (r15AzPdHPC) where the lipid mols. were arranged in an interdigitated orientation at temperatures below the T_m (L_{灏?/sub>I phase). Finally, a P10AzSPC:DMPC mixture was used for photochem.-induced crosslinking experiments with a transmembrane peptide (WAL-peptide) to demonstrate the applicability of the azidolipids for the anal. of peptide/lipid interactions. The efficiency of photocrosslinking was monitored by attenuated total reflection IR spectroscopy and mass spectrometry. In the experiment, the researchers used many compounds, for example, 15-Bromopentadecanoic acid (cas: 56523-59-2Computed Properties of C15H29BrO2).}

15-Bromopentadecanoic acid (cas: 56523-59-2) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). Commercially available organobromine pharmaceuticals include the vasodilator nicergoline, the sedative brotizolam, the anticancer agent pipobroman, and the antiseptic merbromin. Computed Properties of C15H29BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Functionalized N-Heterocyclic Carbene Monolayers on Gold for Surface-Initiated Polymerizations was written by Choi, Yunsoo;Park, Chul Soon;Tran, Hung-Vu;Li, Chien-Hung;Crudden, Cathleen M.;Lee, T. Randall. And the article was included in ACS Applied Materials & Interfaces in 2022.COA of Formula: C15H29BrO2 This article mentions the following:

Although N-heterocyclic carbenes (NHCs) are superior to thiol adsorbates in that they form remarkably stable bonds with gold, the generation of NHC-based self-assembled monolayers (SAMs) typically requires a strong base and an inert atm., which limits the utility of such films in many applications. Herein, we report the development and use of bench-stable NHC adsorbates, benzimidazolium methanesulfonates, for the direct formation of NHC films on gold surfaces under an ambient atm. at room temperature without the need for extraordinary precautions. The generated NHC SAMs were fully characterized using ellipsometry, XPS, polarization modulation IR reflection-absorption spectroscopy (PM-IRRAS), and contact angle measurements, and they were compared to analogous SAMs generated from an NHC bicarbonate adsorbate. Based on these findings, a unique radical initiator 浼?锠?bidentate azo-terminated NHC adsorbate, NHC15AZO[OMs], was designed and synthesized for the preparation of SAMs on gold surfaces with both NHC headgroups bound to the surface. The adsorbate mols. in NHC15AZO SAMs can exist in a hairpin or a linear conformation depending on the concentration of the adsorbate solution used to prepare the SAM. These conformations were studied by a combination of ellipsometry, XPS, PM-IRRAS, and scanning tunneling microscopy using gold nanoparticles (AuNPs) as a tag material. Moreover, the potential utility of these unique radical-initiating NHC films as surface-initiated polymerization platforms was demonstrated by controlling the thickness of polystyrene brush films grown from azo-terminated NHC monolayer surfaces simply by adjusting the reaction time of the photoinitiated radical polymer growth process. In the experiment, the researchers used many compounds, for example, 15-Bromopentadecanoic acid (cas: 56523-59-2COA of Formula: C15H29BrO2).

15-Bromopentadecanoic acid (cas: 56523-59-2) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon鑱砨romine bond is electrophilic in nature. Commercially available organobromine pharmaceuticals include the vasodilator nicergoline, the sedative brotizolam, the anticancer agent pipobroman, and the antiseptic merbromin. COA of Formula: C15H29BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The bromination of the silver salts of organic acids in trichloroethylene was written by Stoll, M.;Rouve, A.. And the article was included in Helvetica Chimica Acta in 1951.Name: 15-Bromopentadecanoic acid This article mentions the following:

Formation of bromides from Ag salts and Br goes best in solvents which react with Br. Ag mono-Me thapsate treated with Br in CCl₄ gives 65-75% Me 15-bromopentadecanoate and 18-25% free acid. When the reaction is carried out under N in C₂HCl₃ the yield is 78-85%, with 9-11% free acid and about 8% of a neutral compound b¹⁵ 90-5鎺? The solvent probably takes part in the reaction. In the experiment, the researchers used many compounds, for example, 15-Bromopentadecanoic acid (cas: 56523-59-2Name: 15-Bromopentadecanoic acid).

15-Bromopentadecanoic acid (cas: 56523-59-2) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon鑱砨romine bond is electrophilic in nature. In the pharmaceutical industry organo bromine derivatives are used as sedatives, vasodilators, antiseptic agents, and anticancer agents.Name: 15-Bromopentadecanoic acid

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Evidence of an Odorant-Binding Protein in the Human Olfactory Mucus: Location, Structural Characterization, and Odorant-Binding Properties was written by Briand, Loiec;Eloit, Corinne;Nespoulous, Claude;Bezirard, Valerie;Huet, Jean-Claude;Henry, Celine;Blon, Florence;Trotier, Didier;Pernollet, Jean-Claude. And the article was included in Biochemistry in 2002.Computed Properties of C15H29BrO2 This article mentions the following:

Odorant-binding proteins (OBPs) are small abundant extracellular proteins belonging to the lipocalin superfamily. They are thought to participate in perireceptor events of odor detection by carrying, deactivating, and/or selecting odorant mols. Putative human OBP genes (hOBP) have recently been described [Lacazette et al. (2000) Hum. Mol. Genet. 9, 289-301], but the presence of the corresponding proteins remained to be established in the human olfactory mucus. This paper reports the first evidence of such expression in the mucus covering the olfactory cleft, where the sensory olfactory epithelium is located. On the contrary, hOBPs were not observed in the nasal mucus covering the septum and the lower turbinate. To demonstrate the odorant binding activity of these proteins, a corresponding recombinant protein variant, hOBP_{IIa浼?/sub>, was secreted by the yeast Pichia pastoris and thoroughly characterized. It appears as a monomer with one disulfide bond located between C59 and C151, a conservative feature of all other vertebrate OBPs. By measuring the displacement of several fluorescent probes, we show that hOBPIIa浼?/sub> is able to bind numerous odorants of diverse chem. structures, with a higher affinity for aldehydes and large fatty acids. A computed 3D model of hOBPIIa浼?/sub> is proposed and reveals that two lysyl residues of the binding pocket may account for the increased affinity for aldehydes. The relatively limited specificity of hOBPIIa浼?/sub> suggests that other human OBPs are expected to take into account the large diversity of odorant mols. In the experiment, the researchers used many compounds, for example, 15-Bromopentadecanoic acid (cas: 56523-59-2Computed Properties of C15H29BrO2).}

15-Bromopentadecanoic acid (cas: 56523-59-2) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon鑱砨romine bond is electrophilic in nature. Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Computed Properties of C15H29BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Polymer-supported bases, 4. Macrolide synthesis from 锠?bromocarboxylic acids using polymer-supported 1,8-diazabicyclo[5.4.0]undec-7-ene was written by Tomoi, Masao;Watanabe, Takashi;Suzuki, Takayuki;Kakiuchi, Hiroshi. And the article was included in Makromolekulare Chemie in 1985.Formula: C15H29BrO2 This article mentions the following:

The macrolide yield in the title synthesis is a function of the degree of ring substitution and of crosslinking, which governs the effective concentration of the fixed substrate within the polymeric reagent. The effect of the polystyrene matrix on the macrolide yield in the heterogeneous system was compared with the corresponding homogeneous reaction. In the experiment, the researchers used many compounds, for example, 15-Bromopentadecanoic acid (cas: 56523-59-2Formula: C15H29BrO2).

15-Bromopentadecanoic acid (cas: 56523-59-2) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Formula: C15H29BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Hydrophilic surfaces via the self-assembly of nitrile-terminated alkanethiols on gold was written by Park, Chul Soon;Zenasni, Oussama;Marquez, Maria D.;Moore, H. Justin;Lee, T. Randall. And the article was included in AIMS Materials Science in 2018.Recommanded Product: 56523-59-2 This article mentions the following:

A series of CN-terminated alkanethiols were synthesized and used to generate self-assembled monolayers (SAMs) on gold. The SAMs were characterized using ellipsometry, contact angle goniometry, polarization modulation IR reflection absorption spectroscopy (PM-IRRAS), and XPS. The SAMs were compared to those derived from a series of analogous CH₃-terminated alkanethiols. The CN-terminated SAMs exhibited lower film thicknesses than the CH₃-terminated SAMs, which was largely due to their greater tilt angle on the surface. Addnl., the CN-terminated SAMs form well-ordered films on flat gold surfaces with relative packing densities being indistinguishable from the CH₃-terminated SAMs. The CN-terminated SAMs exhibited a less hydrophobic character than the SAMs derived from CH₃-terminated adsorbates, which was attributed to the dipole moment of the terminal group as well as the lone pair of the nitrogen atom of the CN-terminal group. In the experiment, the researchers used many compounds, for example, 15-Bromopentadecanoic acid (cas: 56523-59-2Recommanded Product: 56523-59-2).

15-Bromopentadecanoic acid (cas: 56523-59-2) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon鑱砨romine bond is electrophilic in nature. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Recommanded Product: 56523-59-2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

New fluorescent indolium and quinolinium dyes for applications in aqueous halide sensing was written by Geddes, Chris D.;Douglas, Peter;Moore, Christopher P.;Wear, Trevor J.;Egerton, Peter L.. And the article was included in Dyes and Pigments in 1999.Electric Literature of C15H29BrO2 This article mentions the following:

Bromide and teraphenylborate salts of six new highly fluorescent dyes, produced by the reaction of two heterocyclic nitrogen bases (6-methoxyquinoline and harman) with 8-bromooctanoic acid, 11-bromoundecanoic acid, and 15-bromopentadecanoic acid have been prepared Unlike the bases themselves, the quaternary salts are water soluble and have fluorescence characteristics independent of pH in the range 7-11. Both the fluorescence intensity and fluorescence lifetime of these dyes are reduced in the presence of aqueous halide ions, allowing halide concentrations to be determined accurately at concentrations of importance to both medicine and industry. All the dyes have been characterized in terms of steady state fluorescence spectra and steady-state Stern-Volmer anal. The Stern-Volmer constants for the dyes are compared to those obtained for some com. available dyes. The prospects for using these dyes in halide sensor devices are discussed. In the experiment, the researchers used many compounds, for example, 15-Bromopentadecanoic acid (cas: 56523-59-2Electric Literature of C15H29BrO2).

15-Bromopentadecanoic acid (cas: 56523-59-2) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon–bromine bond is electrophilic in nature. One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.Electric Literature of C15H29BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Stable Room-Temperature Molecular Negative Differential Resistance Based on Molecule-Electrode Interface Chemistry was written by Salomon, Adi;Arad-Yellin, Rina;Shanzer, Abraham;Karton, Amir;Cahen, David. And the article was included in Journal of the American Chemical Society in 2004.Formula: C15H29BrO2 This article mentions the following:

The authors show reproducible, stable neg. differential resistance (NDR) at room temperature in mol.-controlled, solvent-free devices, based on reversible changes in mol.-electrode interface properties. The active component is the cyclic disulfide end of mols. adsorbed onto Hg. As this active component is reduced, the Hg-mol. contact is broken, and an insulating barrier at the mol.-electrode interface is formed. Therefore, the alignment of the mol. energy levels, relative to the Fermi levels of the electrodes, is changed. This effect results in a decrease in the current with voltage increase as the reduction process progresses, leading to the so-called NDR behavior. The effect is reproducible and repeatable over >50 scans without any reduction in the current. The stability of the system, which is in the solid state except for the Hg, is due to the mol. design where long alkyl chains keep the mols. aligned with respect to the Hg electrode, even when they are not bound to it any longer. In the experiment, the researchers used many compounds, for example, 15-Bromopentadecanoic acid (cas: 56523-59-2Formula: C15H29BrO2).

15-Bromopentadecanoic acid (cas: 56523-59-2) belongs to organobromine compounds. Organo bromine compounds are versatile compounds and are widely used in diverse fields. Organo bromine derivatives are used in the dye sector, as an indicator in analytical chemistry (Bromothymol blue is a popular indicator). The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.Formula: C15H29BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary