721921
Methanol-d4
NMR reference standard, 99.8 atom % D, NMR tube size 3 mm × 8 in.
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About This Item
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grade
NMR reference standard
isotopic purity
99.8 atom % D
Assay
99% (CP)
form
liquid
technique(s)
NMR: suitable
NMR tube size
3 mm × 8 in.
mass shift
M+4
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General description
Methanol-d4 (CD3OD) is a deuterated NMR solvent used for NMR-based research and analyses. It has the highest isotopic enrichment and will not interfere with the desired level of detection.
The absolute infrared absorption intensities of CD3OD have been reported between 8000 and 350cm-1.
The absolute infrared absorption intensities of CD3OD have been reported between 8000 and 350cm-1.
Application
Methanol-d4 may be used as a removable internal standard to limit contamination during the quantification of lipophilic shellfish toxins using quantitative nuclear magnetic resonance technique (qNMR). The purity and ability of the lipophilic shellfish toxins to serve as authentic reference standards is also determined. It may also be used as a solvent in investigating the utility of matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry to monitor peptide and protein conformational changes of bradykinin, α-melanocyte stimulating hormone, and melittin.
Quantity
3 mm O.D. tube contains 0.235 mL.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1
Target Organs
Eyes,Central nervous system
Storage Class Code
3 - Flammable liquids
WGK
WGK 2
Flash Point(F)
49.5 °F - closed cup
Flash Point(C)
9.7 °C - closed cup
Certificates of Analysis (COA)
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Infrared intensities of liquids. XVII. Infrared refractive indices from 8000 to 350 cm-1, absolute integrated absorption intensities, transition moments, and dipole moment derivatives of methan-d3-ol and methanol-d4 at 25?C.
Bertie JE and Zhang SL.
J. Chem. Phys. , 101(10), 8364-8379 (1994)
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A straightforward synthesis of novel, 2-heterocyclyl polyhydroxylated pyrrolidines is described. Stereocontrolled additions of nucleophiles to cyclic nitrones generated the corresponding 2,3-trans adducts, allowing the synthesis of the corresponding pyrrolidines via key intermediates bearing an alkyne and a nitrile oxide. Three
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Athina Dimopoulou et al.
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We report the synthesis of novel thiopurine pyranonucleosides. Direct coupling of silylated 6-mercaptopurine and 6-thioguanine with the appropriate pyranoses 1a-e via Vorbrüggen nucleosidation, gave the N-9 linked mercaptopurine 2a-e and thioguanine 4a-e nucleosides, while their N-7 substituted congeners 10a-e and
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