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Sigma-Aldrich

Pyridine-d5

≥99.5 atom % D

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Synonym(s):
Pentadeuteropyridine
Empirical Formula (Hill Notation):
C5D5N
CAS Number:
7291-22-7
Molecular Weight:
84.13
Beilstein:
114377
EC Number:
230-720-2
MDL number:
MFCD00044639
UNSPSC Code:
12142201
eCl@ss:
39151701
PubChem Substance ID:
24877931
NACRES:
NA.11

isotopic purity

≥99.5 atom % D

Quality Level

200

Assay

≥99% (CP)

form

liquid

expl. lim.

0.34-6.3 % (lit.)

technique(s)

NMR: suitable

impurities

≤0.05% water
water

refractive index

n20/D 1.506 (lit.)

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

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General description

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.

Application

Pyridine-d5 may be used as a solvent in the 1H NMR based structural analysis of lignin acetates obtained from spruce and birch.

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Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2

WGK

WGK 2

Flash Point(F)

62.6 °F

Flash Point(C)

17 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

美国出口管控1C298产品
危险化学品

Certificates of Analysis (COA)

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Adam H Turner et al.
Physical chemistry chemical physics : PCCP, 22(18), 10219-10226 (2020-05-01)
Aromatic cation ionic liquids (ILs) based on alkylpyridiniums are shown to be good phenol extractants from model oils (hexane/toluene). ILs with hard basic anions are found to have best extraction efficiency consistent with tetraalkylammonium salts ([NR4]X). Key extraction interactions were
NMR studies of lignins. 8. Examination of pyridine-d5 solutions of acetylated lignins from birch and spruce by 1H NMR spectroscopy.
Lundquist K and Von Unge S.
Acta Chemica Scandinavica. Series B, 40, 791-797 (1986)
Xu Pang et al.
Steroids, 93, 68-76 (2014-12-03)
For the first time, a systematic phytochemical study was performed on the roots of Marsdenia tenacissima. Finally, sixteen new polyoxypregnane glycosides, marstenacissides A1-A7 (1-7) and marstenacissides B1-B9 (8-16), were isolated from M. tenacissima roots. The structures of these new compounds
Xu Pang et al.
Carbohydrate research, 402, 236-240 (2014-12-17)
Five new steroidal saponins (1-5) were isolated from the fermentation broth of total furostanol glycosides from tubers of Dioscorea zingiberensis C.H. Wright incubated with a fungal, Absidia coerulea AS 3.3389, along with known saponins, zingiberensis new saponin (6), deltonin (7)
Shao-Dan Chen et al.
Fitoterapia, 102, 67-73 (2015-02-24)
Five new diarylheptanoids (1-5), along with nine known ones (6-14), were isolated from the rhizomes of Curcuma kwangsiensis. Their structures were established on the basis of spectroscopic analyses. Compounds 1-3 were cyclic diarylheptanoids rarely discovered from C. kwangsiensis. Of all
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NMR Deuterated Solvent Properties Reference Chart

Use this reference table to find the coupling values and chemical shifts of our NMR (deuterated) solvents. Melting and boiling points, molecular weight, density, and CAS number are also listed.

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