442713

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A chiral sex pheromone system in the pea midge, Contarinia pisi.

Y Hillbur et al.

Journal of chemical ecology, 27(7), 1391-1407 (2001-08-16)

The sex pheromone of the pea midge consists of 2-acetoxytridecane, (2S,11S)-diacetoxytridecane and (2S,12S)-diacetoxytridecane. The responses of male pea midges to the corresponding stereoisomers of (2S,11S)-diacetoxytridecane and (2S,12S)-diacetoxytridecane were tested in field trapping experiments and by electroantennographic recordings. When added at

Increasing the accuracy of determination of nc/nH ratios by gas chromatography-atomic emission detection.

Elena S Chernetsova et al.

Journal of chromatography. A, 1071(1-2), 55-58 (2005-05-04)

The influence of oxygen content in helium on the accuracy of nc/nH ratio determination for model mixtures of aliphatic and polyaromatic hydrocarbons and polychlorinated biphenyls was studied. The best accuracy was achieved at the oxygen content ca. 9%, which was

GC/MS-based Analysis of Volatile Metabolic Profile Along in vitro Differentiation of Human Induced Pluripotent Stem Cells.

Rosamaria Capuano et al.

Bio-protocol, 7(23), e2642-e2642 (2017-12-05)

Human induced pluripotent stem cells (hiPSCs) are a promising tool in cell-based therapies for degenerative diseases. A safe application of hiPSCs in vivo, requires the detection of the presence of residual undifferentiated pluripotent cells that can potentially cause the insurgence

Comparative in vivo toxicity of topical JP-8 jet fuel and its individual hydrocarbon components: identification of tridecane and tetradecane as key constituents responsible for dermal irritation.

F Muhammad et al.

Toxicologic pathology, 33(2), 258-266 (2005-05-21)

Despite widespread exposure to military jet fuels, there remains a knowledge gap concerning the actual toxic entities responsible for irritation observed after topical fuel exposure. The present studies with individual hydrocarbon (HC) constituents of JP-8 jet fuel shed light on

Solvent inclusion in form II carbamazepine.

Aurora J Cruz Cabeza et al.

Chemical communications (Cambridge, England), (16)(16), 1600-1602 (2007-05-29)

We report on experimental and theoretical evidence for solvent inclusion in form II carbamazepine (R3) and discuss the implications for the formation and stability of this form.

A new bifunctional chelating agent conjugated with monoclonal antibody and labelled with technetium-99m for targeted scintigraphy: 6-(4-isothiocyanatobenzyl)-5,7-dioxo-1,11-(carboxymethyl)-1,4,8,11-tetraazacyclotridecane.

Anil Kumar Mishra et al.

Journal of drug targeting, 12(9-10), 559-567 (2004-12-29)

The purpose of this study was to obtain the convenient, synthetically useful bifunctional chelating agent, 6-(4-isothiocyanatobenzyl)-5,7-dioxo-1,11-(carboxymethyl)-1,4,8,11-tetraazacyclotridecane, and to apply it to stable (99m)Tc-labelling of monoclonal antibodies (mAbs). The chelate was synthesised by reaction of nitrobenzyl malonate and triethylenetetramine followed by

Pseudohomogeneous kinetic study on a two-liquid-phase fermentation process.

Y Li et al.

Chinese journal of biotechnology, 10(4), 271-282 (1994-01-01)

The fermentation process for producing undecane dicarboxylic acid from tridecane, which includes gas-oil-water-cell four phases (two-liquid-phase), was studied. The metabolic characters of the cell growth phase and the production phase of the process were analyzed. It was proposed that cell

Response of the egg parasitoids Trissolcus basalis and Telenomus podisi to compounds from defensive secretions of stink bugs.

Raúl A Laumann et al.

Journal of chemical ecology, 35(1), 8-19 (2009-01-08)

We tested the hypotheses that host-searching behavior of the egg parasitoids Telenomus podisi and Trissolcus basalis may be differentially influenced by the different blends of volatiles released from the metathoracic glands of adult stink bug host species. We further studied

The effect of pressure on the phase transition behavior of tridecane, pentadecane, and heptadecane: a Fourier transform infrared spectroscopy study.

Motoi Yamashita et al.

The Journal of chemical physics, 134(14), 144503-144503 (2011-04-19)

The effect of pressure on the phase transition behavior of tridecane (C(13)), pentadecane (C(15)), and heptadecane (C(17)) has been investigated up to 489, 220, and 387 MPa, respectively, using Fourier transform infrared spectroscopy at 25 °C. The transition between the

A synthetic study of atropurpuran: construction of a pentacyclic framework by an intramolecular reverse-electron-demand Diels-Alder reaction.

Takahiro Suzuki et al.

Angewandte Chemie (International ed. in English), 50(39), 9177-9179 (2011-09-16)

Investigation of high-speed gas chromatography using synchronized dual-valve injection and resistively heated temperature programming.

Vanessa R Reid et al.

Journal of chromatography. A, 1148(2), 236-243 (2007-03-28)

High-speed temperature programming is implemented via the direct resistive heating of the separation column (2.3m MXT-5 Silicosteel column with a 180 microm I.D. and a 0.4 microm 5% phenyl/95% dimethyl polysiloxane film). Resistive temperature programming was coupled with synchronized dual-valve

Synergy versus potency in the defensive secretions from nymphs of two pentatomomorphan families (Hemiptera: Coreidae and Pentatomidae).

Dorit Eliyahu et al.

Journal of chemical ecology, 38(11), 1358-1365 (2012-10-20)

One characteristic of true bugs (Heteroptera) is the presence of dorsal abdominal glands in the immature nymphal stages. These glands usually produce defensive chemicals (allomones) that vary among taxa but are still similar in closely related groups. Knowledge of the

Phytochemical analysis and in vitro biological activity of three Hypericum species from the Canary Islands (Hypericum reflexum, Hypericum canariense and Hypericum grandifolium).

Christian Zorzetto et al.

Fitoterapia, 100, 95-109 (2014-12-03)

In the present work we carried out a phytochemical and biological investigation on three Hypericum species, i.e. Hypericum reflexum, Hypericum canariense and Hypericum grandifolium, from the Canary Islands where they are traditionally used as diuretic, wound healing, vermifuge, sedative and

[Studies on microbial production of undecane 1, 11-dicarboxylic acid from N-tridecane].

Y Chen et al.

Wei sheng wu xue bao = Acta microbiologica Sinica, 39(3), 279-281 (2003-01-31)

A mutant, Candida tropicalis P-12-242, which can produce undecane 1, 11-Dicarboxylic acid(DC13) from N-Tridecane(nC13), was obtained by treating the parent stain UH-2-48 with sodium nitrite. On 2500L fermenter testing, under the optimum condition where the fermentation medium contained total 26%

A photocycloaddition/fragmentation approach toward the 3,12-dioxatricyclo[8.2.1.0(6,13)]tridecane skeleton of terpenoid natural products.

Jörg P Hehn et al.

Organic letters, 13(7), 1892-1895 (2011-03-09)

Starting from tetronate 1 (R = CH(2)OH), a short photochemical access to the 3,12-dioxatricyclo[8.2.1.0(6,13)]tridecane-skeleton 2 of briarellin and asbestinin diterpenes has been explored. In the course of these studies, a number of surprising observations were made. For example, a two-step

Pseudolarenone, an unusual nortriterpenoid lactone with a fused 5/11/5/6/5 ring system featuring an unprecedented bicyclo[8.2.1]tridecane core from Pseudolarix amabilis.

Bo Li et al.

Chemical communications (Cambridge, England), 49(12), 1187-1189 (2013-01-04)

A phytochemical investigation of the cone of Pseudolarix amabilis led to the isolation of pseudolarenone (), a structurally novel pentacyclic (5/11/5/6/5) nortriterpenoid lactone with an unprecedented carbon skeleton featuring a unique bicyclo[8.2.1]tridecane core. Its structure and absolute configurations were elucidated

Evaluation of injection methods for fast, high peak capacity separations with low thermal mass gas chromatography.

Brian D Fitz et al.

Journal of chromatography. A, 1392, 82-90 (2015-03-31)

Low thermal mass gas chromatography (LTM-GC) was evaluated for rapid, high peak capacity separations with three injection methods: liquid, headspace solid phase micro-extraction (HS-SPME), and direct vapor. An Agilent LTM equipped with a short microbore capillary column was operated at

[Study on fermentation of 1,13-tridecanedioic acid by Candida tropicalis].

S Liu et al.

Wei sheng wu xue bao = Acta microbiologica Sinica, 40(3), 318-322 (2003-01-29)

A mutant of Candida tropicalis SP-1, SP-UV-56, which can produce 1,13-tridecanedioic acid or 1,11-dicarboxylic acid (DCA13) 1.25 times as much as its parental strain SP-1, but hardly assimilates nalkane as carbon source for its growth, was obtained by ultraviolet treatments.

1.9 μm superficially porous packing material with radially oriented pores and tailored pore size for ultra-fast separation of small molecules and biomolecules.

Yi Min et al.

Journal of chromatography. A, 1356, 148-156 (2014-07-08)

In this work, 1.9 μm reversed-phase packing materials with superficially porous structure were prepared to achieve the rapid and high efficient separation of peptides and proteins. The silica particles were synthesized via three steps, nonporous silica particle preparation by a

[Search for yeast producers of brassylic and sebacic fatty acids].

I V Ulezlo et al.

Prikladnaia biokhimiia i mikrobiologiia, 40(5), 533-535 (2004-11-24)

Yeast cultures belonging to the genera Candida, Torulopsis, Saccharomyces, Debaryomyces, Hansenula, Pichia, and Yarrowia, capable of synthesizing brassylic and sebacic fatty acids, were screened. Overall, about 200 cultures grown in media containing decane or tridecane as a sole source of

Volatile compounds of Viola odorata absolutes: identification of odorant active markers to distinguish plants originating from France and Egypt.

Laure Saint-Lary et al.

Chemistry & biodiversity, 11(6), 843-860 (2014-06-18)

Absolutes isolated from Viola odorata leaves, valuable materials for the flavor and fragrance industry, were studied. Violets are mainly cultivated in France and Egypt and extracted locally. The absolutes of the two origins showed different olfactory profiles both in top

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