Isotopically Labeled Compounds
Sigma Aldrich Fine Chemicals Biosciences Methanol-d4 99.8 atom D c
Methanol-d4 is a deuterated NMR solvent containing 0.03 % (v/v) TMS (trimethylsilane). It is useful in NMR-based research and analyses.
Sigma Aldrich Fine Chemicals Biosciences Tetrahydrofuran d8 99.5 at5G
Tetrahydrofuran-d8 may be used as a solvent in the synthesis of deuteriotris[bis(trimethylsilyl)amido]thorium and deuteriotris[bis(trimethylsiiyl)amido]uranium.
Sigma Aldrich Fine Chemicals Biosciences Toluene-d8 99.6 atom D25G
Toluene-d8 is a deuterated NMR solvent useful in NMR-based research and analyses. Spin-lattice relaxation time (T 1) viscosity and density have been measured over -35 to 200C range. The temperature dependent chemical shifts in the proton NMR spectra of -unsaturated ketones in toluene-d8 has been studied.
Sigma Aldrich Fine Chemicals Biosciences Ammonium 15N chloride 98 a50G
Ammonium 15N chloride 98 a50G
Cayman Chemical Sphingosine d20 1
Composes a significant portion of CNS gangliosides; concentration increases with maturation and may be related to nervous system degeneration
Cayman Chemical Sphingosine d18 1
Sphingosine (d18:1) is formed primarily from the breakdown of ceramide. Sphingosine inhibits PKC and phosphatidic acid phosphohydrolase, whereas it activates PLD and DAG kinase. Phosphorylation of sphingosine by SPHK 1 and SPHK 2 produces sphingosine-1-phosphate, a potent bioactive lipid that exhibits a broad spectrum of biological activities including cell proliferation, survival, migration, cytoskeletal organization, and morphogenesis.
Cayman Chemical Sphingosine d20 1
Composes a significant portion of CNS gangliosides; concentration increases with maturation and may be related to nervous system degeneration
Cayman Chemical Tafluprostfree acId-d4 500UG
An internal standard for the quantification of tafluprost (free acid) by GC-or LC-MS
Sigma Aldrich Fine Chemicals Biosciences Ethanolamine 13C2 99 atom100MG
Ethanolamine 13C2 99 atom100MG
Sigma Aldrich Fine Chemicals Biosciences Methanol d4 34 10034
Methanol-d4 (CD3OD) is a deuterated NMR solvent useful in NMR-based research and analyses. Absolute infrared absorption intensities of CD3OD have been reported between 8000 and 350cm-1.
Sigma Aldrich Fine Chemicals Biosciences Pyridine d5 99.5 atom D c25G
Pyridine-d5 is a deuterated NMR solvent useful in NMR-based research and analyses. It has been synthesized by palladium catalyzed H/D (hydrogen/deuterium) exchange reaction between pyridine vapor and heavy water. Infrared and Raman spectra of pyridine-d5 have been recorded in the range 300-4000cm-1.