Ethers feature bent C–O–C linkages. In dimethyl ether, the bond angle is 111° and C–O distances are 141 pm. 530-59-6, formula is C11H12O5, Name is 3,5-Dimethoxy-4-hydroxycinnamic acid. The barrier to rotation about the C–O bonds is low. The bonding of oxygen in ethers, alcohols, and water is similar. In the language of valence bond theory, the hybridization at oxygen is sp3. Recommanded Product: 3,5-Dimethoxy-4-hydroxycinnamic acid.
Rodrigues, Carina Alexandra;Zomer, Ana Paula Lourencao;Rotta, Eliza Mariane;Visentainer, Jesui Vergilio;Maldaner, Liane research published 《 A μ-QuEChERS method combined with UHPLC-MS/MS for the analysis of phenolic compounds in red pepper varieties》, the research content is summarized as follows. In this study, a method based on QuEChERS method miniaturization followed by UHPLC-MS/MS anal. was used for the first time to determine phenolic acids and flavonoids in red pepper (Capsicum spp.). Under the optimized extraction and anal. conditions, fourteen phenolic compounds in eleven varieties of red pepper belonging to four domesticated species, C. baccatum L., C. chinense Jacq., C. frutescens L., and C. annuum L., were evaluated. 4-Hydroxybenzoic, p-coumaric, vanillic and ferulic acids, and naringenin were the phenolic compounds found in all varieties evaluated. Among them, vanillic and ferulic acids and naringenin were found in higher amounts, accounting for 92.2% of the total phenolic compounds quantified in all varieties evaluated. Overall, this study reveals relevant and innovative data about the composition of the phenolic compounds of red peppers, especially for those varieties little or not yet studied, such as “Cambuci,” “Dedo-de-moca,” “Big Red Mama,” “Brazilian Moruga,” “Biquinho,” “Naga Morich,””Fatalii Gourmet Jigsaw,” and “Bhut Jolokia Assam”, which will boost its potential uses in agro-food, cosmetic and pharma industry, as well as in health promotion. Furthermore, data support that the μ-QuEChERS method was more cost-effective, less time-consuming, and environmentally friendly, constituting a promising trend for phenolic compounds determination in plant matrixes.
530-59-6, Sinapinic acid is a chemical compound that is the dihydroxybenzoic acid derivative of sinapic acid. It has been shown to have anti-inflammatory properties in vitro and in vivo. Sinapinic acid inhibits the activity of various enzymes, such as cyclooxygenase (COX), lipoxygenase (LOX), and 5-lipoxygenase-activating protein (FLAP). It also decreases levels of adhesion molecules and downregulates inflammatory response genes. Sinapinic acid has been shown to reduce inflammation by inhibiting the formation of proinflammatory mediators, such as prostaglandin E2 or leukotriene B4, in endothelial cells and mammary epithelial cells.
Sinapic acid is a phenylpropanoid hydroxycinnamic acid with diverse biological activities. Sinapic acid inhibits collagen-induced human platelet aggregation by up to 70% in vitro (IC50 = 1.03 mM). It scavenges 2,2-diphenyl-1-picrylhydrazyl (DPPH; ) and 2,2′-azino-bis-(3-ethylbenzothiazoline-6-sulfonate) (ABTS) free radicals with IC50 values of 8.3 and 5.4 μg/ml, respectively. Sinapic acid (200 μM) reduces colony formation of SW480 human colon carcinoma cells by 4-fold. It also inhibits colony formation of E. coli, S. enteritidis, and S. aureus on agar (MICs = 2.2, 2, and 1.8 mM, respectively). In vivo, sinapic acid (4 mg/kg, p.o.) increases the time spent in the open arms of the elevated plus maze by approximately 15% in mice, an effect that can be blocked by the GABAA receptor antagonists flumazenil and bicuculline. Sinapic acid is also commonly used as a matrix in protein mass spectrometry.
Sinapic acid analytical standard provided with w/w absolute assay, to be used for quantitative titration.
Sinapic acid is an hydroxycinnamic acid derivative that occurs naturally in Brassicaceae species.
cis-Sinapic acid, also known as cis-sinapate or synapitic acid, belongs to the class of organic compounds known as hydroxycinnamic acids. Hydroxycinnamic acids are compounds containing an cinnamic acid where the benzene ring is hydroxylated. cis-Sinapic acid is considered to be a practically insoluble (in water) and relatively neutral molecule. Within the cell, cis-sinapic acid is primarily located in the cytoplasm. Outside of the human body, cis-sinapic acid can be found in common pea and pulses. This makes cis-sinapic acid a potential biomarker for the consumption of these food products.
Cis-sinapic acid is a 3-(4-hydroxy-3,5-dimethoxyphenyl)prop-2-enoic acid in which the double bond has cis-configuration. It has been isolated from the shoots of alfalfa. It has a role as a plant metabolite., Recommanded Product: 3,5-Dimethoxy-4-hydroxycinnamic acid
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem