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Sigma-Aldrich

Pyridine-d5

≥99.5 atom % D

Synonym(s):

Pentadeuteropyridine

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About This Item

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

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

62.6 °F

Flash Point(C)

17 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
Indra Prakash et al.
Natural product communications, 9(8), 1135-1138 (2014-09-23)
We report the isolation and complete structure of an isomer of rebaudioside D, known as rebaudioside D2. This novel steviol glycoside was isolated from a bioconversion reaction of rebaudioside A to rebaudioside D. Rebaudioside D2 possesses a relatively rare 1
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)
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