Tag: 300-400

Biodiesel production from waste palm oil catalyzed by hierarchical ZSM-5 supported calcium oxide was written by Zein, Yusuf Muhammad;Anal, Anil Kumar;Prasetyoko, Didik;Qoniah, Imroatul. And the article was included in Indonesian Journal of Chemistry in 2016.Synthetic Route of C20H40O2 The following contents are mentioned in the article:

Biodiesel production from waste palm oil catalyzed by hierarchical ZSM-5 supported calcium oxide was studied. The activity of CaO increased after supported on h-ZSM-5 resulting an increase in conversion from 93.17% to 95.40%. A maximum conversion of 95.40% was achieved at 6 h reaction time, 3 weight% catalyst amount, 12:1 methanol to oil molar ratio and 65 °C reaction temperature The waste palm oil showed a high potential as a feedstock in biodiesel production in which there was no significant different in the conversion of fresh and waste palm oil. The properties of the obtained biodiesel required the limits of biodiesel specification according to ASTM D6751-08 and EN 14214 with the Me ester content of 97.18%, the acid value of 0.24 mg KOH/g, the kinematic viscosity of 4.64 cSt and the d. of 869.9 kg/m³. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Synthetic Route of C20H40O2).

Methyl nonadecanoate (cas: 1731-94-8) 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.Synthetic Route of C20H40O2

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

Chemical constituents and radical scavenging activity of Cuscuta pedicellata seed extracts was written by Abdallah, Walid E.;Elsayed, Wael M.;Abdelshafeek, Khaled A.. And the article was included in International Journal of ChemTech Research in 2016.Application In Synthesis of Methyl nonadecanoate The following contents are mentioned in the article:

The seeds oil of Cuscuta pedicellata was extracted with pet. ether in a Soxhlet for two days and it’s constituents were identified using GC/MS anal. It was found that, the lipid constituents of pet. ether was found as oily residue which saponified to afford the unsaponifiable materials (saturated hydrocarbons, sterols and triterpenes) and 15 fatty acids which were identified by GC/MS analyses. The flavonoids were isolated from the Et acetate fraction and identified as: : Genkwanin, Astragalin, kaempferol and quercetin. The antioxidant activity of different extracts (pet. ether, unsap., fatty acids, 70% methanol, chloroform and Et acetate) were evaluated.Antioxidant properties were determined using the 2,2-diphenyl-1-picryl-hydrazyl (DPPH) free radical. It was observed that methanol extract exhibited highest DPPH activity followed by Et acetate extract This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Application In Synthesis of Methyl nonadecanoate).

Methyl nonadecanoate (cas: 1731-94-8) 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. 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.Application In Synthesis of Methyl nonadecanoate

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

Chemical constituents from the rhizomes of ligularia vellerea was written by Zhao, Yuan;Yang, Ru;Wang, Cai-fang;Zhao, Yu;Zhang, Zhen-zhong. And the article was included in Tianran Chanwu Yanjiu Yu Kaifa in 2014.Product Details of 1731-94-8 The following contents are mentioned in the article:

18 Compounds were isolated and purified from the rhizomes of Ligularia vellerea. Their structures were determined on the basis of physiochem. properties and spectroscopy anal. as furanoeremophilan-14β, 6α-olide (1), β-sitosterol (2), tiglic acid (3), palmitic acid (4), nonadecanoic acid Me ester (5), eremophil-7 (11)-en-12, 8α (14β, 6α)-diolide (6), 8β-methoxy-eremophil-7 (11)-en-12, 8α (14β, 6α)-diolide (7), 1-O-palmitoylglycerol (8), 8β-hydroxy-eremophil-7 (11)-en-12, 8α (14β, 6α)-diolide (9), p-hydroxycinnamic acid Me ester (10), phydroxyacetophenone (11), umbelliferone (12), 3, 4-dihydroxyacetophenone (13), daucosterol (14), 1, 5-dicaffeoylquinic acid (15), p-hydroxycinnamic acid (16), caffeic acid (17), and aesculetin (6, 7-dihydroxycoumarin) (18). Compounds 4-5, 8, 10, 13, 15 and 17, 18 were firstly obtained from Ligularia vellerea. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Product Details of 1731-94-8).

Methyl nonadecanoate (cas: 1731-94-8) 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. 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.Product Details of 1731-94-8

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

Quality evaluation of gluten-free brown rice pasta formulated with green matured banana flour and defatted soy flour was written by Udachan, Iranna;Gatade, Abhijit;Ranveer, Rahul;Lokhande, Siddharth;Mote, Gurunath;Sahoo, Akshaya Kumar. And the article was included in Journal of Food Processing and Preservation in 2022.Electric Literature of C21H44O5 The following contents are mentioned in the article:

Irresp. of the high production of bananas, large quantities are lost due to deficient postharvest handling. The main aim of the present work was to develop gluten-free brown rice pasta by utilization of unripe banana flour (UBF) and defatted soy flour (DSF). To improve the nutritional value of pasta, UBF was substituted in brown rice flour at the levels of 10% to 50% with 10% DSF. With increasing substitution byUBF, hardness, chewiness values were decreased, which were more pronounced when the substitution was more than 30%. The increasing level of UBF had a pos. effect on sensory attributes up to 30% replacement. Fiber and protein content were improved with increasing replacement by UBF compared with wheat-based control pasta. Based on texture, sensory, proximate, and color anal., gluten-free brown rice pasta partially replaced with 30% UBFand 10% DSF were optimized. 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 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.Electric Literature of C21H44O5

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

Access to galectin-3 inhibitors from chemoenzymic synthons was written by Dussouy, Christophe;Teletchea, Stephane;Lambert, Annie;Charlier, Cathy;Botez, Iuliana;Ceuninck, Frederic De;Grandjean, Cyrille. And the article was included in Journal of Organic Chemistry in 2020.Related Products of 604-69-3 The following contents are mentioned in the article:

Chemoenzymic strategies are useful for providing both regio- and stereoselective access to bioactive oligosaccharides. We show herein that a glycosynthase mutant of a Thermus thermophilus α-glycosidase can react with unnatural glycosides such as 6-azido-6-deoxy-D-glucose/glucosamine to lead to β-D-galactopyranosyl-(1→3)-D-glucopyranoside or β-D-galactopyranosyl-(1→3)-2-acetamido-2-deoxy-D-glucopyranoside derivatives bearing a unique azide function. Taking advantage of the orthogonality between the azide and the hydroxyl functional groups, the former was next selectively reacted to give rise to a library of galectin-3 inhibitors. Combining enzyme substrate promiscuity and bioorthogonality thus appears as a powerful strategy to rapidly access to sugar-based ligands. 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: 604-69-3Related Products of 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 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. 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.Related Products of 604-69-3

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

Evaluation of benorylate and its active metabolites by HPLC and comparative bioavailability investigation in human plasma was written by Chen, Jun;Tu, Xide;Gao, Jie. And the article was included in Zhongguo Yaoke Daxue Xuebao in 1995.Formula: C17H15NO5 The following contents are mentioned in the article:

An anal. method of HPLC was developed which detected benorylate and its active metabolites in order to compare the bioavailability in human plasma. Extraction from plasma was carried out in two steps with ether and acetate. The separation was performed on the YWG C₁₈ column with mobile phase of methanol-pH 2.1 phosphate buffer (60:50) at 238 nm of detection wavelength. The lowest limit was 50 ng for paracetamol and salicylic acid. The mean recoveries in plasma were 97.57 ± 6.15%, 97.43 ± 4.39% for SA and PA resp. The plasma concentration of 8 healthy volunteers after taking benorylate tablet A (500 mg × 9) and B (400 mg × 9) was detected. The results showed that the maximum plasma concentration of SA was 113.05 μg/mL from tablet A and 131.78 μg/mL from B; the top time was 2.5 and 2.0 h for A and B resp. The relative bioavailability of B to A was 125.59%. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Formula: C17H15NO5).

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. 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: C17H15NO5

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

Influence factors of the release rate of benorilate from sustained-release matrix tablets was written by Chen, Daiyong;Zang, Zhihe;Yang, Wanqing;Zhao, Miao. And the article was included in Di-San Junyi Daxue Xuebao in 2004.Category: esters-buliding-blocks The following contents are mentioned in the article:

To study the influence factors of the release rate of benorilate from sustained-release matrix tablets, the matrix tablets of benorilate were prepared by using hydroxypropylmethylcellulose (HPMC) as the matrix material. The effects of the contents of HPMC, polyvinyl pyrrolidone (PVP), and microcrystaline cellulose (MCC), and the method of preparation on in vitro drug release were studied by evaluating the n value in the Peppas equation. The results showed that the increasing HPMC content led to the decrease of benorilate release. However, PVP and MCC used in this experiment accelerated the benorilate release from the tablets. The drug released from the tablet prepared by dry method was faster than that by wet method. The contents of HPMC, PVP and MCC, especially HPMC, have effects on the release rate of benorilate, but the two preparation methods have less effect. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Category: esters-buliding-blocks).

4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) 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. 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.Category: esters-buliding-blocks

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

An Octa-Urea [Pd₂L₄]⁴⁺ Cage that Selectively Binds to n-octyl-α-D-Mannoside was written by Schaapkens, Xander;Holdener, Joel H.;Tolboom, Jens;Bobylev, Eduard O.;Reek, Joost N. H.;Mooibroek, Tiddo J.. And the article was included in ChemPhysChem in 2021.Related Products of 604-69-3 The following contents are mentioned in the article:

Designing compounds for the selective mol. recognition of carbohydrates is a challenging task for supramol. chemists. Macrocyclic compounds that incorporate isophtalamide or bisurea spacers linking two aromatic moieties have proven effective for the selective recognition of all-equatorial carbohydrates. Here, we explore the mol. recognition properties of an octa-urea [Pd₂L₄]⁴⁺ cage complex (4). It was found that small anions like NO₃^– and BF₄^– bind inside 4 and inhibit binding of n-octyl glycosides. When the large non-coordinating anion ′BArF′ was used, 4 showed excellent selectivity towards n-octyl-α-D-Mannoside with binding in the order of Ka≈16 M^-1 vs. non-measurable affinities for other glycosides including n-octyl-β-D-Glucoside (in CH₃CN/H₂O 91 : 9). 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: 604-69-3Related Products of 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 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.Related Products of 604-69-3

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

Gas chromatography-mass spectrometry analysis of fatty acids in tilapia offal oil with different extraction methods was written by Sun, Li-xia;Yang, Hong;Zhang, Li-fang;Zhou, Li-qin;Liao, Dan-kui;Sun, Jian-hua. And the article was included in Shipin Keji in 2015.Product Details of 1731-94-8 The following contents are mentioned in the article:

Soxhlet, ultrasonic and pulsed elec. field extraction methods were adopted to extract oil from abandoned tilapia offal. Fatty acids composition and relative content in the fish oil with different extraction methods were analyzed by gas chromatog.-mass spectrometry (GC-MS) method. Compare three different methods with extraction ratio, kinds of fatty acids and relative content in tilapia offal oil. The results showed there was so little difference in the extraction ratio of fish oil by the above three methods. Kinds and relative content of fatty acids by pulsed elec. field extraction were higher than SE and UE methods. The oil extracted by PEFE method has the characteristics of high relative content of monounsaturated fatty acids and low ratio of n-6 to n-3 series fatty acids. Research provides the reference for the high-value utilization of tilapia offal oil. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Product Details of 1731-94-8).

Methyl nonadecanoate (cas: 1731-94-8) 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. 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.Product Details of 1731-94-8

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

Prodrugs to Codrugs was written by Gangrade, Deepali;Karande, Ravindra. And the article was included in Current Drug Therapy in 2017.Product Details of 5003-48-5 The following contents are mentioned in the article:

A review. Background: The Carrier linked prodrug as per literature is known to be a pharmacol. inactive chem. derivative and could be used to change the physicochem. properties of compounds Codrugs is a type of carrier linked prodrug, and consist of two usually synergistic drugs or moieties attached to each other. Objective: synthesis of codrug consists of two pharmacol. active compounds coupled together where one drug is the carrier for the other and vice versa. Result: It is a very beneficial area of research and its admittance in human therapy has given successful results clin. as well as therapeutically. Conclusion: The emphasis is carried on Benorylate, the Codrug of aspirin and paracetamol for improved anti-inflammatory and analgesic activity. The article also takes a review of the various applications of Codrugs and the development in this field during the last few decades. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Product Details of 5003-48-5).

4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) 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. 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.Product Details of 5003-48-5

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