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Merck
CN

437700

Pyridine-d5

"100%", 99.96 atom % D, contains 0.03 % (v/v) TMS

Synonym(s):

Pentadeuteropyridine

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About This Item

Empirical Formula (Hill Notation):
C5D5N
CAS Number:
Molecular Weight:
84.13
EC Number:
230-720-2
UNSPSC Code:
12142201
PubChem Substance ID:
Beilstein/REAXYS Number:
114377
MDL number:
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isotopic purity

99.96 atom % D

assay

99% (CP)

form

liquid

contains

0.03 % (v/v) TMS

expl. lim.

0.34-6.3 % (lit.)

technique(s)

NMR: suitable

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

General description

Pyridine-d5 is a deuterated NMR solvent containing 0.03% (v/v) TMS (tetramethylsilane). It is 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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flash_point_c

17 °C

pictograms

FlameExclamation mark

signalword

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

3 - Flammable liquids

wgk

WGK 2

flash_point_f

62.6 °F

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

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Related Content


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