Tag: M.W=350-400

Oforma, C. C. published the artcileCharacterization of essential oils and fatty acids composition of stored Ginger (Zingiber officinale Roscoe), Synthetic Route of 929-77-1, the main research area is Zingiber essential oil fatty acid zingiberene GCMS.

The essential oils and fatty acids composition of stored Zingiber officinale Roscoe (Ginger) were characterized using Gas chromatog.-Mass Spectrometric (GC/MS) method. The ginger rhizomes sample was procured from spices store at Bwari main market, Abuja, Nigeria. It was pretreated and the proximate anal. was carried out. The essential oils and fatty acids were extracted using Hydro-distillation unit. It was then analyzed using GC/MS. From the results obtained, the proximate composition showed 8.50% protein content, 3.80% crude fiber, 5.10% fat, 3.60% ash content, 10.20% moisture and 68.80% carbohydrate content. 38 essential oil components were found and the essential oil was dominated by the compound class Sesquiterpenes (64.83%) followed by Esters (13.29%), aldehydes (9.16%), Sesquiterpenols (6.46%) and monoterpenes (5.71%). Monoterpenols constituted 3.35% while ketones and oxides were seen in trace amounts The specific dominant constituents were zingiberene (28.57%), Arcurcumene (14.22%) and Geranyl Acetate (13.28%). There was a decrease in the number of sesquiterpenes and monoterpenes in the stored ginger compared to the number earlier reported on freshly harvested and dried samples but the reduction did not affect the overall average percentage composition The fatty acid comprised 50% saturated acids and 50% unsaturated acids and was dominated by Linoleic Acid (23.92%) followed by palmitic acid (22.18%), oleic acid (20.40%) and Lauric Acid (8.34%). The composition of the Zingiber officinale essential oil and fatty acid has shown that the plant contains true essential oils, implying that the medicinal and flavouring strength of the plants may be attributed to its essential oil composition

Journal of Applied Sciences and Environmental Management published new progress about Blood. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Synthetic Route of 929-77-1.

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

Vlassi, Anthi published the artcileWhat Socrates drank Comparative chemical investigation of two Greek Conium taxa exhibiting diverse chemical profiles, Related Products of esters-buliding-blocks, the main research area is Conium taxa chem profile investigation; Apiaceae; Artemia salina; Conium divaricatum; Conium maculatum; Essential oil; Isolation; Structure elucidation; Toxicity assessment.

Conium divaricatum, even though exhibiting morphol. differences in comparison to its congener of European origin Conium maculatum, is still considered a disputed taxon often referred to as a synonym of the latter. Herein, essential oils of various plant tissues from several populations of both taxa were comparatively investigated, showing distinct chem. profiles. In the case of C. divaricatum, the essential oils were dominated by hydrocarbon esters, among which the main constituents 4-oxodecyl hexanoate, 4-oxododecyl hexanoate and 4-oxooctyl hexanoate were isolated and identified as undescribed natural products. In contrast, the essential oils of C. maculatum were dominated by hydrocarbon alkanes, alkenes and ketones, as well as the polyacetylene (Z)-falcarinol. Even though determination of the total alkaloids content and toxicity assessment against the crustacean Artemia salina did not reveal significant differences, the distinct chem. profiles and the morphol. differences observed for both taxa, strongly support their distinction as sep. species.

Phytochemistry (Elsevier) published new progress about Alkanes Role: ANT (Analyte), BSU (Biological Study, Unclassified), ANST (Analytical Study), BIOL (Biological Study). 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Related Products of esters-buliding-blocks.

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

Hagr, Tuhami Elzein published the artcilePhytochemical analysis, antibacterial and antioxidant activities of essential oil from Hibiscus sabdariffa (L) seeds, (Sudanese Karkadi), Name: Methyl docosanoate, the main research area is Hibiscus seed antibacterial antioxidant essential oil.

Chem. constituents, phytochem. screening of the essential oil from H. sabdariffa (L) Seeds, and evaluated its potential antibacterial and antioxidant activities, using Soxhlet method to extract the essential oil. Phytochem. screening showed that Alkaloids, Flavonoids, Carbohydrates, Saponins, Triterpens, Streols, Tannins and phenolic compounds are present in seeds of the H.Sabdariffa. Thirty eight components have been identified which classified in to four categories; 31 fatty acid ester derivatives, the majority of them are; Hexadecanoic acid, Me ester (16.94%), 9,12- Octadecadienoic acid (Z,Z), Me ester (21.93%), 9,-Octadecadienoic acid (Z), Me ester (30.11%), Me stearate(7.39%), Cyclopropaneoctanoic acid (3.17 %), Dotriacontane(2.17 %), two phenolic derivatives; 1,3-Benzodioxole, 4methoxy-6-(2-propenyl) (0.01 %) and Apiol (0.04 %), two steroidal derivatives; 17-Androstannone, 3-(3, 4-dimethylphenyl) (1.81%) and Stigmasta-4,7,22-trien-3.beta.-ol (0.41%) and Beta.-Amyrin (3.82%), Alpha.-Amyrin (1.65 %) Urs-12-en-3-ol, acetate,(3.beta.) (1.17%). The DPPH assay, showed moderate antioxidant potential (50 ± 0.01 compared with standard 89 ± 0.01; the antibacterial showed high inhibitory effect against Bacillus subtilis (13mm). In conclusion, the study showed that the Oil of H. sabdariffa seed is a good source of antioxidants due to the presence of phenolic compounds, also is a potential source of natural antibacterial, and justify its uses in folkloric medicines.

Progress in Chemical and Biochemical Research published new progress about Antibacterial agents. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Name: Methyl docosanoate.

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

Khan, Kehkashan published the artcileGC-MS & preliminary screening profile of Cordia sinensis leaves – antiglycation, antifungal and insecticidal agents, Computed Properties of 929-77-1, the main research area is Cordia leaf bioactive metabolite antiglycation antifungal insecticide; Cordia sinensis; GC/GC-MS; antifungal agents; antiglycation bioassay; insecticidal agents.

Crude extracts and fractions of Cordia sinensis leaves were subjected to gas chromatog.-flame ionization detection (GC-FID), gas chromatog.-mass spectrometry (GC-MS) analyses and preliminary screening for biol. potentials using antibacterial, antifungal, phytotoxic, cytotoxic, insecticidal, antileishmanicidal and antiglycation bioassays. Overall thirty-one phytochems. including three hydrocarbons, seven fatty acids, fifteen fatty acid esters, three terpenes, one each of phytosterol, terpenoid, and polyunsaturated aldehyde were identified. N-Hexadecanoic acid (13.2%), Me hexadecanoate (9.0%), octadec-9Z-enoic acid (8.3%) and Me octadec-9Z,12Z,15Z-trienoate (7.8%) were the main components. Presumably, this is a first report of twenty, thirteen and twenty phytochems. from C. sinensis, Cordia and Boraginaceae, resp. Moreover, Et acetate fraction exhibited significant insecticidal and antifungal activity against Sitophilus oryzae and Microsporum canis, resp. Similarly, n-hexane fraction significantly inhibited (77.4%) advanced glycation end products in antiglycation assay. Conclusively, C. sinensis leaves with bioactive metabolites are a potential source for the development of insecticides, fungicides and pharmaceutically active antidiabetic drugs.

Natural Product Research published new progress about Biofungicides. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Computed Properties of 929-77-1.

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

Radulovic, Niko S. published the artcileLong-chain syn-1-phenylalkane-1,3-diyl diacetates, related phenylalkane derivatives, and sec-alcohols, all possessing dominantly iso-branched chain termini, and 2/3-methyl-branched fatty acids from Primula veris L. (Primulaceae) wax, Related Products of esters-buliding-blocks, the main research area is Primula veris phenylalkane derivative secondary alc branched fatty acid; 1-Phenylalkane-1,3-diones; 2-Methylalkanoic and 3-methylalkanoic acids; 3-Oxo-1-phenylalkan-1-yl acetates; Branched long-chain wax constituents; Primula veris L.; Primulaceae; sec-Alcohols; syn-1-Phenylalkane-1,3-diyl diacetates.

Herein, the results of the first study of non-flavonoid constituents of aboveground surface-wax washings of Primula veris L. (Primulaceae) are presented. Chromatog. of the washings yielded a minor fraction composed of n-, iso-, and anteiso-series of long-chained syn-1-phenylalkane-1,3-diyl diacetates, 3-oxo-1-phenylalkan-1-yl acetates, 1-phenylalkane-1,3-diones, 1-hydroxy-1-phenylalkan-3-ones, sec-alcs. (2- to 10-alkanols), and n-, iso-, anteiso-, 2-methylalkanoic and 3-methylalkanoic acids; 118 of these constituents represent up to now unreported natural compounds The structural/stereochem. elucidation was accomplished by the synthesis of authentic standards, derivatization reactions, the use of gas chromatog. retention data and detailed 1D and 2D-NMR analyses of the obtained complex chromatog. fraction. Primula veris produces unusually high amounts of branched long-chained metabolites (>60%) except for the fatty acids where the percentage of branched isomers is comparable to the ones with n-chains. Noteworthy is the fact that long-chained α- and β-Me substituted fatty acids were detected herein for the first time in the kingdom Plantae.

Phytochemistry (Elsevier) published new progress about Diketones Role: NPO (Natural Product Occurrence), PUR (Purification or Recovery), SPN (Synthetic Preparation), BIOL (Biological Study), OCCU (Occurrence), PREP (Preparation) (1-phenylalkane-1,3-dione). 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Related Products of esters-buliding-blocks.

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

Priyadharisini, J. published the artcilePreliminary phytochemical screening and gas chromatography and mass spectrometry analysis of chloroform extract of Garcinia cambogia fruits, Recommanded Product: Methyl docosanoate, the main research area is Garcinia fruit chloroform extract phytochem GCMS analysis.

Garcinia cambogia fruit commonly known as Malabar tamarind, belongs to the family Clusiaceae, is said to show varied medicinal effects including antiobesity, antiviral, antimicrobial, anti-inflammatory, and anticancer. Hence, the present study deals with the determination of phytochem. constituents present in the chloroform extract of G. cambogia fruits and determination of bioactive compounds using the gas chromatog. and mass spectrometry anal. (GC-MS) technique. The phytochem. constituents present in the chloroform extract of G. cambogia fruits were tested by qual. anal., and bioactive compounds were investigated using the GC-MS technique. The anal. was carried out on a JOEL GC MATERI system with a column packed with a column HP5MS (5% Ph, methylpolysiloxane) fused capillary column (30 x 0.25 μm ID x 0.25 μm df). The compounds are separated using helium as a carrier gas at a constant flow 1 mL/min. The mass spectra of the known compounds in the fruit extract were matched with the known components stored in the National Institute of Standard and technol. library. The phytochem. test revealed the presence of xanthones, flavonoids, phlobatannins, terpenoids steroids, phenolic compounds saponins, and anthraquinones. The GC-MS anal. provided peaks of 13 different bioactive compounds, namely 3,7,11,15-tetramethyl-2-hexadecenol (37.1%), pentadecanoic acid 14-methyl-, methylester (100%), hexadecanoic acid 15 methyl-, Me ester (100%), 9,12-octadecadienoic acid Me ester (42.6%), docosanoic acid (100%), docosanoic acid Me ester (37.3%), phenol, 2,4,bis-(1,1-dimethylethyl) (100%), 9, hexadecanoic acid Me ester (99.2%), 10-octadecenoic acid methylester (100%), 11 eicosenoic acid Me ester (53.1%), heptadecanoic acid 9 methyl-, Me ester (100%), eicosenoic acid Me ester (56.9%), and 5, 12d ethanofuro oxepino[2,3,4-mn] (2,3,4-ed) anthrace2-one 9,12-dilol 6 Me,2a 3,4,4a,5,6,7,8a-octahydro (19%) were reported. The phytochem. investigation and determination of bioactive compounds will be considered for pharmacol. activities, and further isolation of individual components would however help to find new drugs.

Asian Journal of Pharmaceutical and Clinical Research published new progress about Carbohydrates Role: ANT (Analyte), PAC (Pharmacological Activity), THU (Therapeutic Use), ANST (Analytical Study), BIOL (Biological Study), USES (Uses). 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Recommanded Product: Methyl docosanoate.

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

Lapuerta, Magin published the artcileImprovement of cold flow properties of a new biofuel derived from glycerol, Synthetic Route of 929-77-1, the main research area is biofuel cold flow improver fatty acid glycerol formal ester.

One of the barriers for the extended use of fatty acid Me esters (FAME) as a diesel fuel component is the yield of raw glycerol as a byproduct of the transesterification process. In fact, glycerol is considered as one of the most abundant waste feedstock in the world. A new fuel denoted as FAGE (Fatty Acid Glycerol formal Esters) produced from glycerol and waste oil has been developed. FAME is concomitantly obtained during the manufacturing process of FAGE in different proportions depending of the reaction conditions. Since FAGE cold flow properties are in disadvantage when compared to FAME, the influence of some cold-flow improvers in FAGE/FAME blends has been investigated. In this work, the use of some acetals, co-products of the FAGE production process, are proposed as cold-flow improvers, giving extra value to this new fuel since all the co-products obtained from the production process would have a new industrial use. These two acetals are GF (Glycerol Formal) and GFOMOM (Methoxy-Me glycerol formal). The results obtained show that cold flow properties become poorer when the amount of FAGE increases in the FAGE/FAME blend, but such effect is very slight up to 50% FAGE. The use of the acetals improves cold flow properties of the blends up to 2 °C, with minor effect of the GF content in the GF/GFOMOM acetal blend. In addition, a com. cold flow improver was tested, improving the pour point and the cold filter plugging point with only small effect on cloud point and crystallization temperature The results obtained from the acetals and the cold flow improver are compared, and the value of the acetals as cold flow improvers has been proved. A combination of both, acetals and cold-flow improver, is proposed as an optimal method to improve cold flow properties.

Fuel published new progress about Acidity. 929-77-1 belongs to class esters-buliding-blocks, name is Methyl docosanoate, and the molecular formula is C23H46O2, Synthetic Route of 929-77-1.

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

Tang, Xinde published the artcileEffect of the terminal substituent of azobenzene on the properties of ABA triblock copolymers via atom transfer radical polymerization, Safety of 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, the publication is Journal of Polymer Science, Part A: Polymer Chemistry (2007), 45(22), 5190-5198, database is CAplus.

The effect of the terminal substituent of azobenzene on the properties of ABA triblock copolymers was studied. For this study, three kinds of azobenzene-containing monomers with different terminal substituents-6-[4-(4-methoxyphenylazo)phenoxy]hexyl methacrylate, 6-[4-(4-ethoxyphenylazo)phenoxy]hexyl methacrylate, and 6-[4-(4-nitrophenylazo)phenoxy]hexyl methacrylate-were used to synthesize ABA triblock copolymers PMMAzo₂₅-PEG₁₃-PMMAzo₂₅/PMMAzo₁₂-PEG₁₃-PMMAzo₁₂, PEMAzo₁₄-PEG₁₃-PEMAzo₁₄, and PNMAzo₁₄-PEG₁₃-PNMAzo₁₄, resp., by atom transfer radical polymerization (PMMAzo is poly{6-[4-(4-methoxyphenylazo)phenoxy]hexyl methacrylate}, PEMAzo is poly{6-[4-(4-ethoxyphenylazo)phenoxy]hexyl methacrylate}, and PNMAzo is poly{6-[4-(4-nitrophenylazo)phenoxy]hexyl methacrylate}). These copolymers were characterized with ¹H NMR spectroscopy and gel permeation chromatog. and exhibited controlled mol. weights and narrow mol. weight distributions. Differential scanning calorimetry and polarizing optical microscopy showed that these copolymers had mesophases. PMMAzo₂₅-PEG₁₃-PMMAzo₂₅ and PMMAzo₁₂-PEG₁₃-PMMAzo₁₂ had a smectic mesophase and a nematic mesophase, whereas both PEMAzo₁₄-PEG₁₃-PEMAzo₁₄ and PNMAzo₁₄-PEG₁₃-PNMAzo₁₄ had a nematic mesophase. This demonstrated that the liquid-crystalline properties of these copolymers highly depended on the terminal substituent of azobenzene. The photoresponsive behavior of these copolymers was also studied in THF solutions, and the influence of the terminal substituents attached to azobenzene was studied.

Journal of Polymer Science, Part A: Polymer Chemistry published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C14H18BNO2S, Safety of 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Tang, Xinde published the artcileControlled grafting of ethyl cellulose with azobenzene-containing polymethacrylates via atom transfer radical polymerization, HPLC of Formula: 135529-02-1, the publication is Journal of Polymer Science, Part A: Polymer Chemistry (2007), 45(9), 1653-1660, database is CAplus.

Graft copolymers of Et cellulose with azobenzene-containing polymethacrylates were synthesized through atom transfer radical polymerization (ATRP). The residual hydroxyl groups on Et cellulose were first esterified with 2-bromoisobutyryl bromide to yield 2-bromoisobutyryloxy groups, which was then used to initiate the polymerization of 6-[4-(4-methoxyphenylazo)phenoxy]hexyl methacrylate (MMAzo) in the presence of CuBr/N,N,N’,N”,N”-pentamethylenetriamine (PMDETA) as catalyst and anisole as solvent. The graft copolymers were characterized by gel permeation chromatog. (GPC) and ¹H-NMR. The mol. weights of the graft copolymers increased relatively to the macroinitiator, and the polydispersities were narrow. The thermal and liquid crystalline property of the graft copolymers were studied by differential scanning calorimeter (DSC) and polarizing optical microscope (POM). Photoresponsive property was studied under the irradiation of UV-Vis light in THF solution The graft copolymers have potential applications, including sensors and optical materials.

Journal of Polymer Science, Part A: Polymer Chemistry published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C5H7NO, HPLC of Formula: 135529-02-1.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Tao, Xiangdong published the artcileSynthesis and characterization of well-defined thermo- and light-responsive diblock copolymers by atom transfer radical polymerization and click chemistry, Quality Control of 135529-02-1, the publication is Polymer Chemistry (2011), 2(9), 2068-2073, database is CAplus.

We synthesized a series of well-defined, stimuli-responsive diblock copolymers composed of poly(N-isopropylacrylamide) and poly(6-[4-(4-methoxyphenylazo)phenoxy]hexyl methacrylate) by atom transfer radical polymerization and click chem. The diblock copolymers were then characterized by NMR spectroscopy, Fourier transform IR spectroscopy, and gel permeation chromatog. When the azobenzene content reached 4.5 mol%, the diblock copolymer became insoluble in water. The aqueous solutions of the polymers exhibited a lower critical solution temperature (LCST) that depended on the amount of incorporated azobenzene. Higher LCSTs were observed after UV irradiation, with a maximum difference of 4.1 °C for the copolymer containing 1.4 mol% azobenzene groups. The photochem. properties of the polymer were also studied by UV-vis spectroscopy.

Polymer Chemistry published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C7H12ClNO, Quality Control of 135529-02-1.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics