1,2 dipalmitoyl 13c sn glycero 3 pc

1,2-Dipalmitoyl-13C-sn-glycero-3-PC is intended for use as an internal standard for the quantification of 1,2-dipalmitoyl-sn-glycero-3-PC by GC- or LC-MS. 1,2-Dipalmitoyl-sn-glycero-3-PC (DPPC) is a zwitterionic glycerophospholipid commonly used in the formation of lipid monolayers, bilayers, and liposomes for use in a variety of applications.1,2,3,4 It has been used in the formation of proteoliposomes for implantation of γ-glutamyl transpeptidase into human erythrocyte membranes.3 Incorporation of glycosphingolipid antigens into DPPC-containing liposomes increases the immunogenicity of the antigens in mice.4 |1. Ege, C., and Lee, K.Y.C. Insertion of Alzheimer's Aβ40 peptide into lipid monolayers. Biophys. J. 87(3), 1732-1740 (2004).|2. Leekumjorn, S., and Sum, A.K. Molecular simulation study of structural and dynamic properties of mixed DPPC/DPPE bilayers. Biophys. J. 90(11), 3951-3965 (2006).|3. Kalra, V.K., Sikka, S.C., and Sethi, G.S. Transport of amino acids in γ-glutamyl transpeptidase-implanted human erythrocytes. J. Biol. Chem. 256(11), 5567-5571 (1981).|4. Uemura, A., Watarai, S., Iwasaki, T., et al. Induction of immune responses against glycosphingolipid antigens: Comparison of antibody responses in mice immunized with antigen associated with liposomes prepared from various phospholipids. J. Vet. Med. Sci. 67(12), 1197-1201 (2005).

13C C16 Sphingomyelin is an isotopically enriched form of C16 sphingomyelin with carbon-13 occurring on the fatty acid portion. It is intended for use as an internal standard for the quantification of C16 sphingomyelin by GC- or LC-MS. C16 Sphingomyelin is a form of sphingomyelin containing palmitate (16:0) at the variable acylation position. It is the most common form of sphingomyelin found in eggs and is less abundant in the brain and in milk. C16 Sphingomyelin interacts with cholesterol in ordered lipid domains (lipid rafts). Sphingomyelinases remove phosphorylcholine from C16 sphingomyelin to produce C16 ceramide. While ceramides commonly induce apoptosis, ceramides with different fatty acid chain lengths might direct distinct functions and, in some cases, reduce apoptosis.

3-Methyl-2-quinoxalinecarboxylic Acid-d4 是 3-Methyl-2-quinoxalinecarboxylic Acid 的氘代化合物。3-Methyl-2-quinoxalinecarboxylic Acid 的 CAS 号为 74003-63-7。3-Methyl-2-quinoxalinecarboxylic acid 在生命科学相关研究中具有广泛的应用。

Gemcitabine EP Impurity C-13C-15N2 是 Gemcitabine EP Impurity C 的 13C 和 15 N 的标记化合物。

1-1(Z)-Hexadecenyl-2-palmitoyl-d9-sn-glycero-3-PE serves as an internal standard for quantitating 1-1(Z)-hexadecenyl-2-palmitoyl-sn-glycero-3-PE, which is a plasmalogen incorporating 1(Z)-hexadecanoic acid and palmitic acid at the sn-1 and sn-2 positions respectively, in analyses performed using GC- or LC-MS.

3 Hydroxy Midostaurin Epimer 1-d5 是 3 Hydroxy Midostaurin Epimer 1 的氘代化合物。3 Hydroxy Midostaurin Epimer 1 的 CAS 号为 945260-14-0。

1-[3-carboxypropyl]-3,7-dimethylxanthine-d6 是 1-[3-carboxypropyl]-3,7-dimethylxanthine 的氘代化合物。

rac 1,2-Bis-palmitoyl-3-chloropropanediol-d5 是 rac 1,2-Bis-palmitoyl-3-chloropropanediol 的氘代化合物。rac 1,2-Bis-palmitoyl-3-chloropropanediol 的 CAS 号为 51930-97-3。

1-Palmitoyl-d9-2-hydroxy-sn-glycero-3-PA (1-palmitoyl-d9LPA) serves as an internal standard for the quantification of 1-palmitoyl LPA using GC- or LC-MS. This compound, an analog of LPA with palmitic acid at the sn-1 position, activates reporter gene expression in PC12 cells fitted with human lysophosphatidic acid receptor 4 (LPA4) at 0.01 to 10 µM concentrations. Additionally, 1-palmitoyl LPA prompts aggregation in isolated human platelets within the 12-300 µM range, a process reversible by prostaglandin E1 (PGE1), theophylline, or EDTA. It also interacts with calcium and magnesium to boost the efficacy of ampicillin, piperacillin, and ceftazidime against P. aeruginosa strains from cystic fibrosis patients.

2-Nitrobenzaldehyde semicarbazone (13C, 15N2) is utilized in the LC-MS MS method for semicarbazide analysis.

Palmitic acid-13C is intended for use as an internal standard for the quantification of palmitic acid by GC- or LC-MS. Palmitic acid is a 16-carbon saturated fatty acid. It comprises approximately 25% of human total plasma lipids.1 It increases protein levels of COX-2 in RAW 264.7 cells when used at a concentration of 75 μM.2 Palmitic acid is involved in the acylation of proteins to anchor membrane-bound proteins to the lipid bilayer.2,3,4,5,6 |1. Santos, M.J., López-Jurado, M., Llopis, J., et al. Influence of dietary supplementation with fish oil on plasma fatty acid composition in coronary heart disease patients. Ann. Nutr. Metab. 39(1), 52-62 (1995).|2. Lee, J.Y., Sohn, K.H., Rhee, S.H., et al. Saturated fatty acids, but not unsaturated fatty acids, induced the expression of cyclooxygenase-2 mediated through toll-like receptor 4. J. Biol. Chem. 276(20), 16683-16689 (2001).|3. Dietzen, D.J., Hastings, W.R., and Lublin, D.M. Caveolin is palmitoylated on multiple cysteine residues. Palmitoylation is not necessary for localization of caveolin to caveolae. J. Biol. Chem. 270(12), 6838-6842 (1995).|4. Robinson, L.J., and Michel, T. Mutagenesis of palmitoylation sites in endothelial nitric oxide synthase identifies a novel motif for dual acylation and subcellular targeting. Proc. Nat. Acad. Sci. USA 92(25), 11776-11780 (1995).|5. Topinka, J.R., and Bredt, D.S. N-terminal palmitoylation of PSD-95 regulates association with cell membranes and interaction with K+ channel Kv1.4. Neuron 20(1), 125-134 (1998).|6. Miggin, S.M., Lawler, O.A., and Kinsella, B.T. Palmitoylation of the human prostacyclin receptor. Functional implications of palmitoylation and isoprenylation. J. Biol. Chem. 278(9), 6947-6958 (2003).

Sodium Acetate-1-13C 是 Sodium Acetate 的 13C 的标记化合物。Sodium Acetate 的 CAS 号为 127-09-3。Sodium acetate 是常用的实验室试剂。

1, 14-tetradecanedioic-2, 2, 13, 13-d4 acid 是 1, 14-tetradecanedioic acid 的氘代化合物。1, 14-tetradecanedioic acid 的 CAS 号为 821-38-5。Tetradecanedioic acid 是内源性代谢物的一种，是一种长链脂肪酸类有机化合物。它能够作为有机阴离子转运多肽介导的药物-药物相互作用的候选生物标志物。

L-Leucine-1-13C (L-Leucine-13C)是一种 13C 标记的 L-Leucine，显著增强了 GLP-4 的亲和力。

2-(1-(methyl-d3)-1H-imidazol-4-yl)ethan-1-amine 2HCl 是 2-(1-(methyl)-1H-imidazol-4-yl)ethan-1-amine 2HCl 的氘代化合物。2-(1-(methyl)-1H-imidazol-4-yl)ethan-1-amine 2HCl 的 CAS 号为 6481-48-7。1-Methylhistamine dihydrochloride 是组胺代谢物。

1-Palmitoyl-d9-2-hydroxy-sn-glycero-3-PE serves as an internal standard for quantifying 1-palmitoyl-2-hydroxy-sn-glycero-3-PE, a lysophospholipid naturally found to inhibit L. donovani promastigotes growth (GI50= 8 µM). Its levels are reduced in mice after alcohol-induced liver damage, in hepatocellular carcinoma mouse xenografts, and in humans following a rigorous three-day exercise regimen of 2.5 hours running daily and 14 hours post-regimen. This compound is also applied in measuring saturated lysophosphoethanolamines, highlighting its broad utility in biochemical research and disease model studies.

(1'S,2'S)-Nicotine-1'-Oxide-d3 是 (1'S,2'S)-Nicotine-1'-Oxide 的氘代化合物。(1'S,2'S)-Nicotine-1'-Oxide 的 CAS 号为 51095-86-4。

3-Chloro-1,2-Propanediol-d5 是 3-Chloro-1,2-Propanediol 的氘代化合物。3-Chloro-1,2-Propanediol 的 CAS 号为 96-24-2。

L-Serine-1-13C is an amino acid.

3 Hydroxy Midostaurin Epimer 2-d5 是 3 Hydroxy Midostaurin Epimer 2 的氘代化合物。3 Hydroxy Midostaurin Epimer 2 的 CAS 号为 155848-20-7。

1-Palmitoyl-d9-2-palmitoyl-sn-glycero-3-PE serves as an internal standard for the quantification of 1,2-dipalmitoyl-sn-glycero-3-PE (1,2-DPPE) using GC- or LC-MS. 1,2-DPPE, a prevalent PE (phospholipid), contains C16:0 fatty acids at the sn-1 and sn-2 positions and is essential in the inner plasma membrane leaflet. This compound forms a condensed lipid monolayer with cholesterol through tight hydrogen bonding between 1,2-DPPE headgroups, enhancing membrane fluidity to support transport and signaling.

rac 1-Palmitoyl-3-Chloropropanediol-d5 是 rac 1-Palmitoyl-3-Chloropropanediol 的氘代化合物。rac 1-Palmitoyl-3-Chloropropanediol 的 CAS 号为 30557-04-1。

3-Amino-2-Oxazolidinone-d4 是 3-Amino-2-Oxazolidinone 的氘代化合物。3-Amino-2-Oxazolidinone 的 CAS 号为 80-65-9。3-Amino-2-oxazolidinone 是一种呋喃唑烷酮的代谢物 (metabolite)，可用作检测呋喃唑烷酮残留的一个指标。

1-Palmitoyl-d9-2-palmitoyl-sn-glycerol serves as an internal standard for quantifying 1,2-dipalmitoyl-sn-glycerol using GC or LC-MS techniques. This diacylglycerol, featuring palmitic acid at both the sn-1 and sn-2 positions, stimulates protein kinase C (PKC) activity by 15% at a 25 μM concentration. Additionally, 1,2-dipalmitoyl-sn-glycerol encourages rapid growth in Frankia, a genus of Gram-positive bacteria.