Month: December 2022

Comparative study of fat properties and phenolic contents of fermented rambutan (Nephelium lappaceum L.) and pulasan (Nephelium mutabile Blume) seeds was written by Hamid, H. A.;Yahya, I. H.;Ramli, A. N. M.. And the article was included in International Food Research Journal in 2022.Electric Literature of C21H44O5 The following contents are mentioned in the article:

Rambutan and pulasan seeds are usually discarded as waste. However, the seeds contain a significant quantity of quality crude fat. Therefore, the present work was conducted to establish and compare the fat properties, and saponin and total phenolic contents of fermented rambutan and pulasan seeds. Results showed that the crude fat yields for rambutan and pulasan seeds were 3.98 and 7.41 g/10 g, resp. Results also showed decreases in crude fat by 41% for rambutan seeds, and 23% for pulasan seeds after fermentation The yields of the main fatty acid in rambutan and pulasan seeds, which was oleic acid, were 53.11 and 58.27%, resp. Only 0.81 and 37.25% of triacylglycerols remained in rambutan and pulasan seed fats, resp. after fermentation In addition, the melting temperature for both seed fats increased, while the saponin and total phenolic contents in rambutan and pulasan seeds decreased with increasing fermentation time. This study involved multiple reactions and reactants, such as Glyceryl monostearate (cas: 31566-31-1Electric Literature of C21H44O5).

Glyceryl monostearate (cas: 31566-31-1) 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.Electric Literature of C21H44O5

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

Temperature and Pressure Dependence of the Viscosities of 2-Ethylhexyl Benzoate, Bis(2-ethylhexyl) Phthalate, 2,6,10,15,19,23-Hexamethyltetracosane (Squalane), and Diisodecyl Phthalate was written by Harris, Kenneth R.. And the article was included in Journal of Chemical & Engineering Data in 2009.Recommanded Product: 5444-75-7 The following contents are mentioned in the article:

The viscosities of the esters 2-ethylhexyl benzoate (EHB), bis(2-ethylhexyl) phthalate (DEHP), and the long-chain hydrocarbon 2,6,10,15,19,23-hexamethyltetracosane (squalane, C₃₀H₆₂) have been measured between (0 and 80)° with a falling-body viscometer to a maximum pressures of (315, 371, and 379) MPa, resp. The expanded uncertainty is estimated at ±2%. These substances are possible alternatives to diisodecyl phthalate (DIDP) as reference materials for viscometry at moderate to high pressures. In addition, further measurements for DIDP are reported in the range (0.1 to 90) MPa and (25 to 75)° to supplement those given by K.R. Harris and S. Bair (2007). The data have also been fitted as a function of the quantity (TV^γ) using the thermodn. scaling method of C.M. Roland et al.(2006), yielding scaling parameters, γ, equal to 3.69, 3.65, 4.16, and 3.96 for EHB, DEHP, squalane, and DIDP, resp. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Recommanded Product: 5444-75-7).

2-Ethylhexyl benzoate (cas: 5444-75-7) 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. 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.Recommanded Product: 5444-75-7

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

Formulation and bioavailability of benorilate tablets was written by Chen, J.;Tu, X. D.. And the article was included in Yaoxue Xuebao in 1994.Name: 4-Acetamidophenyl 2-acetoxybenzoate The following contents are mentioned in the article:

A new formulation tablet B was developed and compared with tablet A with the purpose of improving the bioavailability of benorilate by reducing its particle size. The dissolution rate in vitro was determined by paddle method and using surfactant solution medium. The plasma concentrations of hydrolyzates which are salicylic acid and paracetamol from benorilate in vivo were measured by HPLC. The dissolution rates of ground and unground drug are 0.0337 min^-1 and 0.0152 min^-1, resp. Compared with tablet A, the cumulative dissolution percentage of B is higher. The mean dissolution time of B and A are 15.77 min and 42.25 min, resp. The study in vivo showed that the C_max, T_p and AUC of salicylic acid for these two formulations have no significant difference. The relative bioavailability of B to A is 125.59%. Their in vivo process fits one-compartment model and first order elimination. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Name: 4-Acetamidophenyl 2-acetoxybenzoate).

4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) 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. 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.Name: 4-Acetamidophenyl 2-acetoxybenzoate

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

The ancient neapolitan sweet lime and the calabrian lemoncetta locrese belong to the same citrus species was written by Cautela, Domenico;Balestrieri, Maria Luisa;Savini, Sara;Sannino, Anna;Ferrari, Giovanna;Servillo, Luigi;De Masi, Luigi;Pastore, Annalisa;Castaldo, Domenico. And the article was included in Molecules in 2020.Formula: C10H20O2 The following contents are mentioned in the article:

“Neapolitan limmo” is an ancient and rare sweet Mediterranean lime, now almost extinct but used until a few decades ago for the production of a fragrant liqueur called the “four citrus fruits”. The objective of this work was to compare, through the use of chem. (flavonoids, volatile organic compounds, and chiral compounds) and mol. (DNA fingerprint based on RAPD-PCR) markers, the residual population of Neapolitan limmo with other populations of sweet limes, identified in Calabria and known as “lemoncetta Locrese”. We report for the first time specific botanical characteristics of the two fruits and unequivocally show that the ancient sweet Mediterranean limes Neapolitan limmo and lemoncetta Locrese are synonyms of the same Citrus species. Owing to the biodiversity conserved in their places of origin, it will now be possible to recover, enhance and implement the use of this ancient sweet lime for agro-industrial purposes. 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. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Formula: C10H20O2

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

A peptide from budding yeast gapdh serves as a promising antifungal against Cryptococcus neoformans was written by Zhang, Yang;Zhou, Liyan;Liu, Yan;Zhao, Xi;Lian, Xianqiang;Zhang, Jie;Zhao, De;Wang, Yujuan;Zhong, Jin;Wang, Junfeng;Wang, Hongli;Wang, Linqi;Fu, Yu V.. And the article was included in Microbiology Spectrum in 2022.Formula: C39H76NO8P The following contents are mentioned in the article:

Infection of Cryptococcus neoformans is one of the leading causes of morbidity and mortality, particularly among immunocompromised patients. However, currently available drugs for the treatment of C. neoformans infection are minimal. Here, we report SP1, a peptide derived from glyceraldehyde-3-phosphate dehydrogenase (GAPDH) of Saccharomyces cerevisiae, efficiently kills C. neoformans and Cryptococcus gattii. SP1 causes damages to the capsule. Unlike many antimicrobial peptides, SP1 does not form pores on the cell membrane of C. neoformans. It interacts with membrane ergosterol and enters vacuole possibly through membrane trafficking. C. neoformans treated with SP1 show the apoptotic phenotypes such as imbalance of calcium ion homeostasis, reactive oxygen increment, phosphatidylserine exposure, and nuclear fragmentation. Our data imply that SP1 has the potential to be developed into a treatment option for cryptococcosis. This study involved multiple reactions and reactants, such as (2R,9Z)-1-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)-3-(palmitoyloxy)propan-2-yl oleate (cas: 26662-94-2Formula: C39H76NO8P).

(2R,9Z)-1-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)-3-(palmitoyloxy)propan-2-yl oleate (cas: 26662-94-2) 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, including apples, durians, pears, bananas, pineapples, and strawberries. 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.Formula: C39H76NO8P

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

Visible light promoted formation of N-S bond by photocatalyst Eosin Y was written by Verma, Ankit;Srivastava, Arjita;Tiwari, Saurabh K.;Yadav, Neetu;Ansari, Mohd Danish;Yadav, Vijay B.;Sagir, Hozeyfa;Siddiqui, Ibadur R.. And the article was included in Journal of Heterocyclic Chemistry in 2020.HPLC of Formula: 2253-73-8 The following contents are mentioned in the article:

A novel efficient protocol for the synthesis of 5-imino-1,2,4-thiadiazole motif in open air using visible light has been reported. The reaction involves Eosin Y as photocatalyst which is a cost-effective organic dye. The designed protocol represents a novel, mild, metal free, green strategy for the construction of imino-substituted thiadiazolo[4,3-a]pyridines I (R¹ = i-Pr, cyclopropyl, n-Pr, Ph, 4-O₂NC₆H₄, etc.; R² = H, 6-O₂N, 7-Me, 8-Cl, etc.) and thiadiazoles II (R¹ = Ph; R³ = n-Pr, Ph, 4-MeC₆H₄) from the corresponding R²-substituted 2-aminopyridines or amidines R³C(:NH)NH₂ and isothiocyanates R¹NCS by intramol. cyclization via N-S bond formation. The reaction was carried out under visible light exposure in ethanol:water (4:1) mixture This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8HPLC of Formula: 2253-73-8).

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, including apples, durians, pears, bananas, pineapples, and strawberries. 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.HPLC of Formula: 2253-73-8

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

Visible light promoted formation of N-S bond by photocatalyst Eosin Y was written by Verma, Ankit;Srivastava, Arjita;Tiwari, Saurabh K.;Yadav, Neetu;Ansari, Mohd Danish;Yadav, Vijay B.;Sagir, Hozeyfa;Siddiqui, Ibadur R.. And the article was included in Journal of Heterocyclic Chemistry in 2020.Application of 2253-73-8 The following contents are mentioned in the article:

A novel efficient protocol for the synthesis of 5-imino-1,2,4-thiadiazole motif in open air using visible light has been reported. The reaction involves Eosin Y as photocatalyst which is a cost-effective organic dye. The designed protocol represents a novel, mild, metal free, green strategy for the construction of imino-substituted thiadiazolo[4,3-a]pyridines I (R¹ = i-Pr, cyclopropyl, n-Pr, Ph, 4-O₂NC₆H₄, etc.; R² = H, 6-O₂N, 7-Me, 8-Cl, etc.) and thiadiazoles II (R¹ = Ph; R³ = n-Pr, Ph, 4-MeC₆H₄) from the corresponding R²-substituted 2-aminopyridines or amidines R³C(:NH)NH₂ and isothiocyanates R¹NCS by intramol. cyclization via N-S bond formation. The reaction was carried out under visible light exposure in ethanol:water (4:1) mixture This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Application of 2253-73-8).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. 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.Application of 2253-73-8

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

Vaporization/sublimation enthalpies of mono- and dimethyl-esters estimated by solution calorimetry method was written by Samatov, Aizat A.;Nagrimanov, Ruslan N.;Miroshnichenko, Evgeniy A.;Solomonov, Boris N.. And the article was included in Thermochimica Acta in 2020.Electric Literature of C10H20O2 The following contents are mentioned in the article:

The additive scheme for calculating the solvation enthalpies of aliphatic compounds has been developed for linear mono- and dimethyl-esters. Ester group contribution to the enthalpy of solvation in n-heptane was obtained. Accuracy of the proposed approach for determination of solvation enthalpies of linear mono- and dimethyl-esters was tested by comparison with exptl. solvation enthalpies. In most cases, deviations do not exceed 1 kJ·mol^-1. It was found that the dependence of the solution enthalpies of mono- and dimethyl-esters on the number of carbon atoms in the mol. can be fitted by power function. This dependence and a group-additivity scheme for solvation enthalpy were used for estimation of the enthalpies of phase transitions of mono- and dimethyl-esters. Evaluated values of sublimation, vaporization, and fusion enthalpies at 298.15 K are in good agreement with exptl. data obtained by conventional methods. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1Electric Literature of 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. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Electric Literature of C10H20O2

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

Vaporization/sublimation enthalpies of mono- and dimethyl-esters estimated by solution calorimetry method was written by Samatov, Aizat A.;Nagrimanov, Ruslan N.;Miroshnichenko, Evgeniy A.;Solomonov, Boris N.. And the article was included in Thermochimica Acta in 2020.Computed Properties of C8H16O2 The following contents are mentioned in the article:

The additive scheme for calculating the solvation enthalpies of aliphatic compounds has been developed for linear mono- and dimethyl-esters. Ester group contribution to the enthalpy of solvation in n-heptane was obtained. Accuracy of the proposed approach for determination of solvation enthalpies of linear mono- and dimethyl-esters was tested by comparison with exptl. solvation enthalpies. In most cases, deviations do not exceed 1 kJ·mol^-1. It was found that the dependence of the solution enthalpies of mono- and dimethyl-esters on the number of carbon atoms in the mol. can be fitted by power function. This dependence and a group-additivity scheme for solvation enthalpy were used for estimation of the enthalpies of phase transitions of mono- and dimethyl-esters. Evaluated values of sublimation, vaporization, and fusion enthalpies at 298.15 K are in good agreement with exptl. data obtained by conventional methods. This study involved multiple reactions and reactants, such as Methyl heptanoate (cas: 106-73-0Computed Properties of C8H16O2).

Methyl heptanoate (cas: 106-73-0) 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. 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.Computed Properties of C8H16O2

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

Total synthesis of ceramides and β-O-glucosylceramides via intramolecular fatty acyl group migration was written by Gorantla, Jaggaiah N.;Santhi, Maniganda;Hua, Yanling;Ketudat Cairns, James R.. And the article was included in New Journal of Chemistry in 2022.SDS of cas: 604-69-3 The following contents are mentioned in the article:

Acyl migration of alkyl and aromatic acyl groups from an alc. to another alc. or amine is a phenomenon that occurs in nature and can be a bane to some synthetic strategies. An acyl migration-dependent method was developed for the synthesis of ceramide and glucosyl ceramide derivatives, in which the desired fatty acyl moiety acts both as protecting and migrating group. Removal of the tetrachlorophthalimido (TCP) group with ethylenediamine as a mild base at room temperature resulted in subsequent intramol. fatty acyl group migration from -O to -N, on sphingosine or peracetylated glucosyl sphingosine to yield the desired N-acylated products. A deacetylation reaction afforded the desired β-O-glucosylceramide derivatives I (R = C₁₅H₃₁, C₁₇H₃₅). Thus, the choice of the appropriate blocking group turns acyl migration into a tool for synthesis, rather than an impediment. This study involved multiple reactions and reactants, such as (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3SDS of cas: 604-69-3).

(2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. 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.SDS of cas: 604-69-3

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