Tag: 100-200

Antioxidant and antibacterial activities of Pelargonium asperum and Ormenis mixta essential oils and their synergistic antibacterial effect was written by Ouedrhiri, Wessal;Balouiri, Mounyr;Bouhdid, Samira;Harki, El Houssaine;Moja, Sandrine;Greche, Hassane. And the article was included in Environmental Science and Pollution Research in 2018.Recommanded Product: 106-21-8 The following contents are mentioned in the article:

In this work, the chem. composition, the antioxidant, and the antibacterial activities of two Moroccan essential oils less studied, extracted from Pelargonium asperum and Ormenis mixta, were investigated. According to the gas chromatog. coupled to mass spectrometry anal., citronellol (25.07%), citronellyl ester (10.52%), geraniol (10.46%), and buthyl anthranilate (5.93%) were found to be the major components of P. asperum, while O. mixta was mainly composed of D-germacrene (11.46%), 1,8-cineole (10.28%), and cis-Me isoeugenol (9.04%). Moreover, O. mixta essential oil exhibited an important antioxidant activity being significantly higher than that exhibited by P. asperum oil (P < 0.001). As regards the antimicrobial activity of both essential oils, the zones of growth inhibition and the min. inhibitory concentration values showed that P. asperum essential oil was more active than that of O. mixta. Thereafter, the impact of the binary combination of essential oils on their antimicrobial effect was investigated against Staphylococcus aureus using the fractional inhibitory concentration index calculation The results showed a promising synergistic antibacterial interaction between essential oils studied. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Recommanded Product: 106-21-8).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Recommanded Product: 106-21-8

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Analysis of aroma components in fruit development period of “muscat” was written by Zhang, Cun-zhi;Liu, Jing;Zhang, Hong;Wei, Peng;Zhang, Hong-sheng;Cheng, Qian. And the article was included in Anhui Nongye Kexue in 2022.Product Details of 106-21-8 The following contents are mentioned in the article:

Headspace solid phase microextraction (HSPME) was used to extract the aroma components from six different development stages of grape, and the components were determined and analyzed by gas chromatog.-mass spectrometry (GC-MS) to reveal the change rule of aroma components and content in different development stages. The results showed that 60 kinds of aroma components were detected in the grape fruits of “Muscat”, and the aroma components and their contents varied greatly in different development stages of the fruit. Among them, the most changed linalool, the relative content increased rapidly from 3.24% in the late color transition period to 55.26% in the maturity period, followed by C₁₃ alkanes, the relative content surged from 1.63% in the pre-color conversion to 18.84% in the late color conversion stage, an increase of 10.56 times, then rapidly decreased, and disappeared in the maturity period, which was neg. correlated with the change of linalool. Terpenoids were the main aroma of “Muscat” grapes, of which linalool was the most important component, and the pre-color transition-the late color transition was the synthesis period of the precursor substances of the aroma components. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Product Details of 106-21-8).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Product Details of 106-21-8

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Alcohol – Wikipedia,
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Synthesis and Antifungal Activity of Novel Tetrahydrogeranyl Quaternary Ammonium Salts was written by Peng, Yun;Chang, Jiayu;Xiao, Zhuangquan;Huang, Jiazong;Xu, Ting;Chen, Shangxing;Fan, Guorong;Liao, Shengliao;Wang, Zongde;Luo, Hai. And the article was included in Natural Product Communications in 2022.COA of Formula: C10H22O The following contents are mentioned in the article:

Due to the excessive use of antifungal agents, drug resistance and ecol. problems are increasing. Some antifungal agents are difficult to degrade and have high toxicity and several side effects. In this study, 15 novel tetrahydrogeranyl quaternary ammonium salts (8a-8o) were synthesized from the natural compound citral. The structures of the quaternary ammonium salts were characterized by Fourier transform IR, proton NMR, carbon-13 NMR spectroscopy, and mass spectrometry, and the antifungal activities of these compounds at a concentration of 0.25 mg/mL against 10 plant pathogenic fungi were tested. The results showed that compound 8i had the best antifungal activity, and its inhibition rates against Rhizoctonia solani, Phytophthora parasitica var. nicotianae, Sphaeropsis sapinea, Fusarium oxysporum f. sp. niveum, and Poria vaporaria reached 100%. For Fusarium verticillioides, the inhibition rate of compound 8i was 93.28%, which was higher than that of chlorothalonil. In addition, it was found that the inhibition rates of compounds with N,N-di-Pr group (8l, 8m) against R solani, F oxysporum f. sp. niveum, S sapinea, P parasitica var. nicotianae, F verticillioides, Colletotrichum acutatum, and Coriolus versicolor were higher than compounds with N,N-di-Et and N,N-di-Me groups (8a, 8b, 8j, 8k). The inhibition rates of compounds with morpholine groups (8n, 8o) were generally low. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8COA of Formula: C10H22O).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Alcohols are among the most common organic compounds. They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.COA of Formula: C10H22O

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Spurge (Euphorbia rigida) exhibits anaesthetic effect in rainbow trout (Oncorhynchus mykiss) without altering plasma cortisol levels was written by Alagoz, Kerem;Parug, Senol;Tastan, Yigit;Bilen, Soner;Sonmez, Adem Yavuz. And the article was included in Aquaculture Research in 2021.Name: 3,7-Dimethyloctan-1-ol The following contents are mentioned in the article:

This study was conducted to investigate a potential new organic anesthetic for aquaculture practices. Aqueous macerate of spurge stem (Euphorbia rigida) was obtained by adding 200 g of plant powder to 1.5 L of distilled water and applied to rainbow trout (Oncorhynchus mykiss) at 5 different concentrations (30000, 40000, 50000, 60000 and 70000μL L^-1) to determine induction (loss of equilibrium and deep anesthesia) and recovery (recovery of equilibrium and full recovery) durations. In addition, plasma cortisol levels of fish within 0 h were determined to evaluate stress response. It was determined that there were 4 concentrations that can be used as suitable anesthetics for rainbow trout: 40000, 50000, 60000 and 70000μL L^-1. These concentrations provided deep anesthesia in 196.67±1.45, 173.00±11.24, 138.33±8.29 and 136.33±5.23 s, resp. Plasma cortisol levels of the mentioned groups were measured as 4.49±1.04, 8.64±0.73, 8.18±0.64 and 9.64±0.78 ng mL^-1, resp. On the other hand, the plasma cortisol level of the control group (anesthetized with 2-phenoxyethanol) was 10.95±0.89 ng mL^-1. These findings suggest that 40000-70000μl L^-1 of E. rigida can be used as an alternative anesthetic in rainbow trout. However, further studies need to be conducted to evaluate the long term effects of the plant, especially in consecutive use. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Name: 3,7-Dimethyloctan-1-ol).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Name: 3,7-Dimethyloctan-1-ol

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Alcohol – Wikipedia,
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Solar assisted catalytic thermochemical processes: pyrolysis and hydropyrolysis of Chlamydomonas reinhardtii microalgae was written by Aparecida da Silveira Rossi, Raissa;Barbosa, Janaina Miranda;Antonio de Souza Barrozo, Marcos;Martins Vieira, Luiz Gustavo. And the article was included in Renewable Energy in 2021.Recommanded Product: 3,7-Dimethyloctan-1-ol The following contents are mentioned in the article:

Thermochem. processes using solar energy are considered promising approaches. To improve the product properties, alternative techniques have also been investigated, including the use of catalyst and hydrogen atm. These techniques individually have proved to be efficient to overcome some inherent challenges of this process. However, they have never been studied as an integrated process. Thus, in this work the solar assisted catalytic hydropyrolysis process using microalgae Chlamydomonas reinhardtii as biomass source and hydrotalcite-derived mixed oxides as catalyst (in an ex-situ approach) was successfully investigated as an integrated approach. The effects of reaction time and catalyst percentage on the product distribution and the bio-oil content produced from distinct processes: ex-situ catalytic solar pyrolysis (CSP) and ex-situ catalytic solar hydropyrolysis (CSH) were investigated. The hydrogen used in CSH has been produced by solar aqueous alk. electrolysis. The results showed that CSH produced higher liquid yields than CSP, reaching 48.83% in its best condition. The content of oxygenated compounds in bio-oil produced by hydropyrolysis was, on average, about 12% lower than that obtained by CSP. However, CSP presented individual tests with less nitrogenated (6.01%) and oxygenated (22.49%) compounds The hydrocarbon production reached 35.58% for CSP and 37.01% for CSH. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Recommanded Product: 3,7-Dimethyloctan-1-ol).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Recommanded Product: 3,7-Dimethyloctan-1-ol

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Outdoor exposure and accelerated weathering of polyurethane/polysiloxane hybrid coatings was written by Gao, Tongzhai;He, Zhouying;Hihara, Lloyd H.;Mehr, Hamideh Shokouhi;Soucek, Mark D.. And the article was included in Progress in Organic Coatings in 2019.Computed Properties of C9H20O2 The following contents are mentioned in the article:

Two Polyurethane/polysiloxane hybrid coatings were compared using both real time exposure and accelerated weathering. The urethane coatings were differentiated by oligoesters selection with one being derived from cyclohexane diacids (CHDA) and 2-butyl-2-ethyl-1,3-propanediol (BEPD) and the other adipic acid (AA), isophthalic acid (IPA), 1,6-hexanediol (HD), and trimethylol propane (TMP). Three sites in Hawaii, Campbell Industrial Park (CIP), Kilauea Volcano, and Marine Corp Base Hawaii (MCBH), were selected for the outdoor exposure test with the increasing severity of the environment. After weathering, the coatings were analyzed by Fourier transform IR spectroscopy (FTIR) and solid state ¹³C NMR (NMR), Dynamic mech. anal. (DMA) and differential scanning calorimetry (DSC), and Scanning electronic microscopy (SEM). Urethanes based on cycloaliphatic oligoesters exhibited much better appearance compared to the aromatic-based polyesters. A degradation of both the carbamate and ester functionality was observed spectroscopically which was accompanied by an increase in Tg, and erosion of the surface of the coatings. It was found that the accelerated weathering test conducted in weatherometer provides harsher conditions than the three outdoor exposure tests (marine, volcano, and industrial park), while marine is the harshest among the three outdoor exposure sites. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4Computed Properties of C9H20O2).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Computed Properties of C9H20O2

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Alcohol – Wikipedia,
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Impact of alkalization conditions on the phytochemical content of cocoa powder and the aroma of cocoa drinks was written by Sioriki, Eleni;Lemarcq, Valerie;Alhakim, Fauzan;Triharyogi, Harry;Tuenter, Emmy;Cazin, Catherine S. J.;Nolan, Steven P.;Pieters, Luc;Van de Walle, Davy;Dewettinck, Koen. And the article was included in LWT–Food Science and Technology in 2021.Quality Control of 3,7-Dimethyloctan-1-ol The following contents are mentioned in the article:

Alkalization is an important process in cocoa powder production that affects color and flavor. In this study, the impact of alkalization temperature (60, 70, 80, 90, 100°C), NaOH concentration (0.59, 1.17, 2.34, 3.59% weight/weight of cocoa powder) and alkalization time (1 and 10 min) on the physicochem. properties (pH, color) and phytochem. profile (theobromine, caffeine, epicatechin, catechin) of cocoa powder were investigated, while the aroma was studied on the corresponding cocoa drinks. High-performance liquid chromatog. coupled to an ultra-violet detector (HPLC-UV) was used for screening the non-volatiles and headspace solid – phase microextraction – gas chromatog. – mass spectrometry (HS-SPME-GC-MS) for the aromatic compounds Major changes of the cocoa properties occurred during the first minute of alkalization. Increase of temperature and alkali concentration generally reduced the levels of epicatechin and the lightness (L*), while the pH of the cocoa powder was affected by changing the alkali concentration On the other hand, the reddish (a*) and yellowish (b*) color component values and theobromine levels were not significantly affected by varying temperature and alkali concentration A higher temperature did not affect the concentration of the volatile compounds, while a decrease in certain chem. classes was observed by increasing the alkali concentration This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Quality Control of 3,7-Dimethyloctan-1-ol).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Quality Control of 3,7-Dimethyloctan-1-ol

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Alcohol – Wikipedia,
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Antifungal Activity of Monoterpenes against Botryosphaeria dothidea was written by Zhang, Zhilin;Xie, Yongjian;Hu, Xian;Shi, Hongan;Wei, Mi;Lin, Zhufeng. And the article was included in Natural Product Communications in 2018.Related Products of 106-21-8 The following contents are mentioned in the article:

The development of natural plant extracts and essential oils will assist to decrease the neg. effects of synthetic chems. The antifungal activity of 20 pure monoterpenes was assessed their efficacy against Botryosphaeria dothidea. 20 compounds were investigated the antifungal activity against B. dothidea at the concentration of 400μg·mL^-1. And components were used to the future test, which of the antifungal rate is greater than 50% against B. dothidea. Results from antifungal tests revealed that cuminaldehyde, β-citronellol, nerol, geraniol, citral and α-terpineol exhibited strong antifungal effect against B. dothidea. In addition, the antifungal activity of cuminaldehyde, β-citronellol, and geraniol had a highest effect toward B. dothidea with LC₅₀ values of 105.15, 135.73, 132.69μg·mL^-1, resp. In addition to the antagonistic effect of geraniol/β-citronellol (1/2) mixture, the combination of other compounds has synergistic effect on B. dothidea. The present results indicated that cuminaldehyde, geraniol, and β-citronellol are promising antifungal effect against B. dothidea and could be useful in the search for new natural fungicide. Several high activity monoterpenes and some combined with two monoterpenes were identified, and provided a rationale for pursuing further research on the fungicide and enhanced efficacy by the combined of fungicide. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Related Products of 106-21-8).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Related Products of 106-21-8

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Alcohol – Wikipedia,
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Field tests with mosquito and sand-fly repellents in Alaska was written by Applewhite, K. H.;Smith, Carroll N.. And the article was included in Journal of Economic Entomology in 1950.HPLC of Formula: 115-84-4 The following contents are mentioned in the article:

In field tests with 10 repellents (25% solutions) applied to the human skin, Pr N,N-diethylsuccinamate (I) was most effective against Aedes flavescens and I and di-Me phthalate (II) were equally effective and superior to the other repellents against a mixed population of Aedes species. Cream preparations containing 20% of each of the 10 repellents were slightly less effective than the 25% solutions The repellents tested in addition to I and II were: Mixture 6-2-2 (I 60%, 2-ethyl-1,3-hexanediol 20%, Indalone 20%); 2-ethyl-1,3-hexanediol; 4-(p-methoxyphenyl)-5-methyl-1,3-dioxane; Indalone; 2,2′-thiodiethanol diacetate; pentamethylene propionate; Et β-phenylhydracrylate; 2-ethyl-2-nitro-1,3-propanediol butyraldehyde, 2-ethyl-2-nitro-1,3-propanediol acetal. Thirty-five materials known to have mosquito-repellent properties were applied to cotton stockings in acetone solution at 3 g./sq. ft. of cloth (6.6 g./stocking). The impregnated stockings were subjected to wear and rinsing (cold water) tests. Materials which withstood 4 or more rinsings and 16 h. of wear were: hexyl mandelate (superior); Indalone; 2,2-[(2-ethylhexyloxy)ethoxy]-ethanol; cyclohexanepropionic acid; α,α,α-trichloro-N-(2-chloroethyl)acetamide; N-butylhexahydrophthalimide; N-butyl-1,2,3,6-tetrahydrophthalimide; caprylic acid; allyl α,β-epoxy-β-phenylbutyrate; isobornyl 4-morpholineacetate. Repellents applied to face masks as a protection against sand flies (Culicoides tristriatulus) failed. This study involved multiple reactions and reactants, such as 2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4HPLC of Formula: 115-84-4).

2-Butyl-2-ethylpropane-1,3-diol (cas: 115-84-4) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.HPLC of Formula: 115-84-4

Referemce:
Alcohol – Wikipedia,
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Multiphase Equilibria Modeling with GCA-EoS. Part II: Carbon Dioxide with the Homologous Series of Alcohols was written by Gonzalez Prieto, Mariana;Sanchez, Francisco Adrian;Pereda, Selva. And the article was included in Journal of Chemical & Engineering Data in 2018.Formula: C10H22O The following contents are mentioned in the article:

Modeling multiphase equilibrium of mixtures comprising carbon dioxide (CO₂) and organic compounds is a challenge for any equation of state. CO₂ shows a highly nonideal phase behavior with most organic compounds, which is even more pronounced with hydrogen-bonding compounds In this work, we have extended the Group-Contribution with Association equation of state (GCA-EOS) to represent vapor-liquid, liquid-liquid, and vapor-liquid-liquid equilibrium of CO₂ mixtures with primary alcs. The final set of parameters has been challenged against an exptl. database covering C₁-C₁₆ primary alcs., temperatures from 230 to 573 K, and pressures up to 400 bar. Particular attention has been given to describe the critical curves for each binary system correctly, which means attaining the phase equilibrium transformation of the CO₂ + 1-alc. homologous series as the alc. alkyl chain length increases. This parametrization strategy allows reducing the risk of incorrect liquid-liquid split predictions. In addition, using a single set of parameters, fitted to binary data of CO₂ with normal alcs., the model is able to predict the phase behavior of binary mixtures not included in the parametrization procedure, comprising normal and branched alcs. The GCA-EOS predicts properly the overall phase behavior, i.e., the binary critical curves, without losing accuracy in the prediction of saturation points. This study involved multiple reactions and reactants, such as 3,7-Dimethyloctan-1-ol (cas: 106-21-8Formula: C10H22O).

3,7-Dimethyloctan-1-ol (cas: 106-21-8) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Formula: C10H22O

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts