532975
Pyridine-d5
≥99.5 atom % D
Synonym(s):
Pentadeuteropyridine
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About This Item
Empirical Formula (Hill Notation):
C5D5N
CAS Number:
Molecular Weight:
84.13
NACRES:
NA.11
PubChem Substance ID:
eCl@ss:
39151701
UNSPSC Code:
12142201
EC Number:
230-720-2
MDL number:
Beilstein/REAXYS Number:
114377
Isotopic purity:
≥99.5 atom % D
Assay:
≥99% (CP)
Mass shift:
M+5
isotopic purity
≥99.5 atom % D
Quality Segment
assay
≥99% (CP)
expl. lim.
0.34-6.3 % (lit.)
technique(s)
NMR: suitable
impurities
≤0.05% water
water
refractive index
n
pH
8.5 (0.2 g/L)
bp
114.4 °C (lit.)
mp
-41 °C (lit.)
density
1.05 g/mL at 25 °C (lit.)
mass shift
M+5
SMILES string
[2H]c1nc([2H])c([2H])c([2H])c1[2H]
InChI
1S/C5H5N/c1-2-4-6-5-3-1/h1-5H/i1D,2D,3D,4D,5D
InChI key
JUJWROOIHBZHMG-RALIUCGRSA-N
General description
Achieve sharper, more reliable nuclear magnetic resonance (NMR) spectra with our comprehensive range of deuterated solvents. Each solvent delivers exceptional chemical purity and the highest isotopic enrichment, ensuring a stable deuterium lock signal, minimal residual proton signal interference, and a reliable chemical shift reference for every experiment.
Ultra-low residual water content - verified by both Karl Fischer titration and NMR methods - supports moisture-sensitive applications, while rigorous batch-to-batch quality control delivers consistent, reproducible performance you can trust in research and quality control laboratories.
Our portfolio spans the most widely used NMR solvents available in multiple deuteration levels and purity grades to match the exact requirements of your analysis. Available in a variety of safe, flexible formats - including glass bottles, glass ampules, serum bottles, and our exclusive moisture-protective Sure/Seal™ bottles - to suit every lab′s handling and storage needs.
Ultra-low residual water content - verified by both Karl Fischer titration and NMR methods - supports moisture-sensitive applications, while rigorous batch-to-batch quality control delivers consistent, reproducible performance you can trust in research and quality control laboratories.
Our portfolio spans the most widely used NMR solvents available in multiple deuteration levels and purity grades to match the exact requirements of your analysis. Available in a variety of safe, flexible formats - including glass bottles, glass ampules, serum bottles, and our exclusive moisture-protective Sure/Seal™ bottles - to suit every lab′s handling and storage needs.
Application
Deuterated solvents are indispensable wherever chemical research is carried out, supporting nuclear magnetic resonance (NMR) spectroscopy - the leading method for structural elucidation of organic molecules. As a non-destructive, information-rich technique, NMR reveals atomic connectivity within a molecule, its spatial orientation, and its motion in its natural environment, offering a comprehensive picture of molecular structure and dynamics.
Other Notes
Check out ChemisTwin®, our brand new online portal for identity confirmation and quantification of NMR spectra. Learn more or reach out to us for a free trial.
Legal Information
ChemisTwin is a registered trademark of Merck KGaA, Darmstadt, Germany
Sure/Seal is a trademark of Sigma-Aldrich Co. LLC
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Signal Word
Danger
Hazard Codes
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2
Storage Class
3 - Flammable liquids
WGK
WGK 2
Flash Point (°F)
62.6 °F
Flash Point (°C)
17 °C
PPE (personal protective equipment)
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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