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177970

Sigma-Aldrich

Pyridine-d5

"100%", ≥99.96 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/REAXYS Number:
114377
EC Number:
230-720-2
MDL number:
MFCD00044639
UNSPSC Code:
12142201
eCl@ss:
39151701
PubChem Substance ID:
24850705
NACRES:
NA.11

Quality Level

200

isotopic purity

≥99.96 atom % D

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 form of pyridine having an isotopic purity of 99.96atom%D. It is 100% isotopically enriched NMR (Nuclear Magnetic Resonance) solvent. It is widely employed for high resolution NMR studies due to its high chemical and isotopic purity. The reaction between pyridine vapor and heavy water in the presence of a palladium catalyst has been reported to afford pyridine-d5. Infrared (IR), Raman (in the range 300-4000cm-1) and high-resolution (0.06cm-1) FT-IR (Fourier transform infrared) spectral studies of pyridine-d5 have been reported.

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accessory

Product No.
Description
Pricing

pictograms

FlameExclamation mark
GHS02,GHS07

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_germany

WGK 2

flash_point_f

62.6 °F

flash_point_c

17 °C

ppe

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

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The FT-IR spectra of pyridine and pyridine-d51.
Wong KN and Colson SD.
Journal of Molecular Spectroscopy, 104(1), 129-151 (1984)
Vibrational spectra of C2v deuterium substituted pyridines. 4-pyridine-2, 3, 5, 6-d4 and pyridine-d5.
Stidham HD and Dilella DP.
Journal of Raman Spectroscopy, 9(4), 247-256 (1980)
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
Yu Shan et al.
Molecules (Basel, Switzerland), 20(11), 20334-20340 (2015-11-17)
A new nortriterpene saponin, 3-O-β-d-glucuronopyranosyl-30-norolean-12,20(29)-dien-23- oxo-28-oic acid, namely bigelovii D (11), was isolated from the hydroalcoholic extract of herbs of Salicornia bigelovii along with 10 known saponins (1-10). Their chemical structures were identified on the basis of spectroscopic analyses including
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
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