Tag: 100-200

Experimental study of surface heating by a high speed exhaust plume was written by Kuo, Y. D.;Smith, N. S. A.;Honnery, D. R.. And the article was included in Experimental Thermal and Fluid Science in 2016.Product Details of 763-69-9 The following contents are mentioned in the article:

Airframe surface heating by gas turbine plume is an ongoing issue in aerospace applications. This paper presents the practicability of a smaller scale system based on a micro gas turbine which offers verisimilitude and realism to the actual airframe surface heating by a full scale engine exhaust plume flow. A thin flat plate made from 7075-T6 aluminum alloy was placed at X = 7D downstream of the nozzle exit of the gas turbine. Nozzle exit flow temperature ranged from 850 K to 920 K and Reynolds number over the sample plate ranged from 3.8 × 10⁴ to 2.6 × 10⁵. The average Nusselt number was found to be correlated to CRe^mPrⁿ with m = 0.42, n = 0.33, C = 0.094 for parallel plume flow over the sample plate at X = 7D and Z = 0D. It was also found that coefficient C can be scaled by velocity magnitude ratio with respect to the plume center if the sample was positioned away from the center of the jet plume. Heat transfer by IR radiation was found to be less than 2% compared to the overall heat flux. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Product Details of 763-69-9).

Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Product Details of 763-69-9

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Sensory, physicochemical and volatile compound analysis of short and long shelf-life melon (Cucumis melo L.) genotypes at harvest and after postharvest storage was written by Farcuh, Macarena;Copes, Bill;Le-Navenec, Gaelle;Marroquin, Juan;Cantu, Dario;Bradford, Kent J.;Guinard, Jean-Xavier;Van Deynze, Allen. And the article was included in Food Chemistry: X in 2020.Formula: C10H20O2 The following contents are mentioned in the article:

Flavor is a key attribute defining melon fruit quality and driving consumer preferences. We characterized and compared fruit ripening patterns (ethylene, respiration), physicochem. properties (rind/flesh color, firmness, soluble solids, acidity), aroma volatiles, and flavor-related sensory attributes in seven melon genotypes differing in shelf life capacity. Fruits were evaluated at optimal maturity and after storage for six days at 5°C plus one day at room temperature Total volatile content increased after storage in all genotypes, with esters being dominant. Shorter shelf-life genotypes, displaying a sharper climacteric phase, correlated with fruity/floral/sweet flavor-related descriptors, and with esters, sulfur-containing compounds and a terpenoid. Longer shelf-life types were associated with firmness, green and grassy aroma/flavor and aldehydes. Multivariate regression identified key volatiles that predict flavor sensory perception, which could accelerate breeding of longer shelf-life melons with improved flavor characteristics. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1Formula: C10H20O2).

Octyl acetate (cas: 112-14-1) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Formula: C10H20O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Persistence Enhancement of a Promising Tick Repellent, Benzyl Isothiocyanate, by Yeast Microcarriers was written by Kim, Hui-Ju;Jeong, Ah-Hyeon;Lee, Ji-Hoon;Park, Jun-Hwan. And the article was included in Molecules in 2021.Formula: C4H7NS The following contents are mentioned in the article:

Phenethyl isothiocyanate isolated from Armoracia rusticana root oil and its derivatives were tested at different doses in a bioassay designed to evaluate repellency against individual Haemaphysalis longicornis nymphs. Among the tested compounds, benzyl isothiocyanate exhibited repellency against H. longicornis nymphs at the lowest dose of 0.00625 mg/cm2, followed by phenethyl isothiocyanate (0.0125 mg/cm2) and Ph isothiocyanate (0.025 mg/cm2). The behavioral responses of H. longicornis nymphs exposed to benzyl isothiocyanate and phenethyl isothiocyanate indicated that the mode of action of these compounds can be mainly attributed to the vapor phase. Encapsulated benzyl isothiocyanate showed repellency up to 120 min post-application at 0.1 mg/cm2, whereas pure benzyl isothiocyanate showed repellency up to 60 min post-application at 0.1 mg/cm2. The present study suggests that benzyl isothiocyanate is a potential repellent for protection against H. longicornis nymphs, and encapsulation in yeast cells may enhance the repellency effect. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Formula: C4H7NS).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Formula: C4H7NS

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Persistence Enhancement of a Promising Tick Repellent, Benzyl Isothiocyanate, by Yeast Microcarriers was written by Kim, Hui-Ju;Jeong, Ah-Hyeon;Lee, Ji-Hoon;Park, Jun-Hwan. And the article was included in Molecules in 2021.Quality Control of Isopropylisothiocyanate The following contents are mentioned in the article:

Phenethyl isothiocyanate isolated from Armoracia rusticana root oil and its derivatives were tested at different doses in a bioassay designed to evaluate repellency against individual Haemaphysalis longicornis nymphs. Among the tested compounds, benzyl isothiocyanate exhibited repellency against H. longicornis nymphs at the lowest dose of 0.00625 mg/cm2, followed by phenethyl isothiocyanate (0.0125 mg/cm2) and Ph isothiocyanate (0.025 mg/cm2). The behavioral responses of H. longicornis nymphs exposed to benzyl isothiocyanate and phenethyl isothiocyanate indicated that the mode of action of these compounds can be mainly attributed to the vapor phase. Encapsulated benzyl isothiocyanate showed repellency up to 120 min post-application at 0.1 mg/cm2, whereas pure benzyl isothiocyanate showed repellency up to 60 min post-application at 0.1 mg/cm2. The present study suggests that benzyl isothiocyanate is a potential repellent for protection against H. longicornis nymphs, and encapsulation in yeast cells may enhance the repellency effect. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Quality Control of Isopropylisothiocyanate).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Quality Control of Isopropylisothiocyanate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

New group interaction parameters of the UNIFAC model for the solubility of water in fatty acid methyl esters and biodiesel was written by Roosta, Aliakbar. And the article was included in Fuel in 2018.Application In Synthesis of Methyl heptanoate The following contents are mentioned in the article:

Water content is one of the most important quality indexes of biodiesel. In this study, the group interaction parameters of UNIFAC model are optimized to improve this model in predicting the solubility of water in fatty acid Me esters and biodiesel. To determine the binary interaction parameters between water and the main functional groups attached to the mols. of the biodiesel compounds, 55 exptl. data points related to the solubility of water in nine pure fatty acid Me esters in the temperature range of 282.2 K-323.2 K are employed. Then, the model is used to predict the water solubility in 10 different biodiesels (60 data points), to evaluate the calculated interaction parameters in predicting the solubility of water in the mixture of fatty acid Me esters. The average absolute relative deviations of the model in predicting the water content of pure fatty acid Me esters and biodiesel are 4.31% and 4.69%, resp. To show the superior performance of the model, the results of the model are compared with the results of previous models. This study involved multiple reactions and reactants, such as Methyl heptanoate (cas: 106-73-0Application In Synthesis of Methyl heptanoate).

Methyl heptanoate (cas: 106-73-0) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Application In Synthesis of Methyl heptanoate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

2-Amino-5-(cyanomethylsulfanyl)-1H-pyrroles from Propargylamines, Isothiocyanates and Bromoacetonitrile by One-Pot Synthetic Protocol was written by Tarasova, Olga A.;Nedolya, Nina A.;Albanov, Alexander I.;Trofimov, Boris A.. And the article was included in ChemistrySelect in 2020.Synthetic Route of C4H7NS The following contents are mentioned in the article:

Tertiary propargylamines (such as N,N-dialkylpropargylamines, N-propargylpyrrolidine, -piperidine, and -morpholine) isothiocyanates and bromoacetonitrile was showned to be readily available building blocks for the highly selective one-pot construction of 1-substituted 2-amino-5-(cyanomethylsulfanyl)-1H-pyrroles I [R¹ = Me, Et, cyclopentyl, etc; R² = NMe₂, NEt₂, NPr₂, etc.] in up to 92% yield. This highly efficient and operationally simple approach included the initial formation of lithium but-2-ynimidothioate (adduct of monolithiated propargylamine and isothiocyanate), its transformation into potassium buta-2,3-dienimidothioate under the action of the t-BuOK/DMSO system (through acetylene-allene isomerization and the exchange by cations), intramol. cyclization into potassium thienylamide (at â‰?5°C), followed by its re-cyclization into potassium pyrrolylsulfide at a higher temperature (45-60°C), and the final S-alkylation of the latter with bromoacetonitrile. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Synthetic Route of C4H7NS).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Synthetic Route of C4H7NS

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

2-Amino-5-(cyanomethylsulfanyl)-1H-pyrroles from Propargylamines, Isothiocyanates and Bromoacetonitrile by One-Pot Synthetic Protocol was written by Tarasova, Olga A.;Nedolya, Nina A.;Albanov, Alexander I.;Trofimov, Boris A.. And the article was included in ChemistrySelect in 2020.Name: Isopropylisothiocyanate The following contents are mentioned in the article:

Tertiary propargylamines (such as N,N-dialkylpropargylamines, N-propargylpyrrolidine, -piperidine, and -morpholine) isothiocyanates and bromoacetonitrile was showned to be readily available building blocks for the highly selective one-pot construction of 1-substituted 2-amino-5-(cyanomethylsulfanyl)-1H-pyrroles I [R¹ = Me, Et, cyclopentyl, etc; R² = NMe₂, NEt₂, NPr₂, etc.] in up to 92% yield. This highly efficient and operationally simple approach included the initial formation of lithium but-2-ynimidothioate (adduct of monolithiated propargylamine and isothiocyanate), its transformation into potassium buta-2,3-dienimidothioate under the action of the t-BuOK/DMSO system (through acetylene-allene isomerization and the exchange by cations), intramol. cyclization into potassium thienylamide (at â‰?5°C), followed by its re-cyclization into potassium pyrrolylsulfide at a higher temperature (45-60°C), and the final S-alkylation of the latter with bromoacetonitrile. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Name: Isopropylisothiocyanate).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Name: Isopropylisothiocyanate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Synthesis and biological activities of perillaldehyde-based Schiff base-(thio)urea compounds was written by Ma, Yuan;Duan, Wengui;Lin, Guishan;Liu, Luzhi;Huang, Zhengsong;Lei, Fuhou. And the article was included in Linchan Huaxue Yu Gongye in 2017.Recommanded Product: Isopropylisothiocyanate The following contents are mentioned in the article:

Thirteen novel perillaldehyde-based Schiff base-(thio)urea compounds (5a-5m) were designed and synthesized by using perillaldehyde as starting material. Their structures were analyzed and characterized by FT-IR, ¹H NMR, ¹³C NMR, and ESI-MS. The results of preliminary bioassay showed that, at the mass concentration of 50 mg/L, the inhibition rate of target compound 5f (R = p-FAr) against Physalospora piricola was 90.0% (close to that of the pos. control azoxystrobin), and the inhibition rate of target compound 5d (R = Ar) against Alternaria solani was 91.8% (close to that of the pos. control azoxystrobin). Besides, at the mass concentration of 100 mg/L, the target compounds 5c (R = cyclopentyl), 5i (R = p-CH₃Ar) and 5a (R = CH₃) exhibited 77.6%, 75.3% and 67.4% inhibition against the growth of rape (Brassica campestris) root, resp. (greater than pos. control flumioxazin). Furthermore, substituted Ph thioureas showed better antifungal and herbicidal activities than substituted Ph ureas. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Recommanded Product: Isopropylisothiocyanate).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Recommanded Product: Isopropylisothiocyanate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Variation in volatile organic compounds in fruits of Iranian Capparis spinosa L. accessions was written by Alipour, Fereidon;Nabigol, Amrollah;Nabizadeh, Esmail. And the article was included in Saudi Journal of Biological Sciences in 2021.Synthetic Route of C4H7NS The following contents are mentioned in the article:

In the present study, essential oil (EO) content and phytochem. variation were evaluated in the fruits of 10 Iranian Capparis spinosa accessions. The accessions were collected from their natural habitats of Iran and grown together in field conditions. The EOs content ranged from 0.55 to 1.46%. The correlation anal. revealed a significant neg. correlation between the EO content and altitude of the sampling locations (P < 0.01; r = -0.84). GC-MS anal. revealed 31 compounds in the EOs of the accessions, mainly being iso-Pr isothiocyanate (5.5-13.7%), Me sulfonyl heptyl isothiocyanate (4.6-15.6%), Bu isothiocyanate (3.6-10.6%), γ-terpinene (4.4-9.2%), and thymol (22.9-37.1%). According to the cluster anal., the accessions were classified into three groups. Principal component anal. (PCA) demonstrated that the first and second PCs1 confirmed more than 76% of the total variation in the phytochem. components among the C. spinosa samples. Our results revealed that the sampling altitude was the most effective factor in explaining this variation. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Synthetic Route of C4H7NS).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Synthetic Route of C4H7NS

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Variation in volatile organic compounds in fruits of Iranian Capparis spinosa L. accessions was written by Alipour, Fereidon;Nabigol, Amrollah;Nabizadeh, Esmail. And the article was included in Saudi Journal of Biological Sciences in 2021.Recommanded Product: Isopropylisothiocyanate The following contents are mentioned in the article:

In the present study, essential oil (EO) content and phytochem. variation were evaluated in the fruits of 10 Iranian Capparis spinosa accessions. The accessions were collected from their natural habitats of Iran and grown together in field conditions. The EOs content ranged from 0.55 to 1.46%. The correlation anal. revealed a significant neg. correlation between the EO content and altitude of the sampling locations (P < 0.01; r = -0.84). GC-MS anal. revealed 31 compounds in the EOs of the accessions, mainly being iso-Pr isothiocyanate (5.5-13.7%), Me sulfonyl heptyl isothiocyanate (4.6-15.6%), Bu isothiocyanate (3.6-10.6%), γ-terpinene (4.4-9.2%), and thymol (22.9-37.1%). According to the cluster anal., the accessions were classified into three groups. Principal component anal. (PCA) demonstrated that the first and second PCs1 confirmed more than 76% of the total variation in the phytochem. components among the C. spinosa samples. Our results revealed that the sampling altitude was the most effective factor in explaining this variation. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Recommanded Product: Isopropylisothiocyanate).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Recommanded Product: Isopropylisothiocyanate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics