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184527

Sigma-Aldrich

Pyridine

spectrophotometric grade, ≥99%

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About This Item

Empirical Formula (Hill Notation):
C5H5N
CAS Number:
110-86-1
Molecular Weight:
79.10
Beilstein/REAXYS Number:
103233
EC Number:
203-809-9
MDL number:
MFCD00011732
UNSPSC Code:
12352005
eCl@ss:
39151701
PubChem Substance ID:
57647741

grade

spectrophotometric grade

vapor density

2.72 (vs air)

vapor pressure

10 mmHg ( 13.2 °C)
20 mmHg ( 25 °C)

assay

≥99%

autoignition temp.

899 °F

expl. lim.

12.4 %

impurities

<0.100% water

evapn. residue

<0.002%

color

colorless

refractive index

n20/D 1.509 (lit.)

bp

115 °C (lit.)

mp

−42 °C (lit.)

density

0.978 g/mL at 25 °C (lit.)

λ

H2O reference

UV absorption

λ: 315 nm Amax: 1.00
λ: 330 nm Amax: 0.15
λ: 335 nm Amax: 0.05
λ: 350-400 nm Amax: 0.01

SMILES string

C1=CN=CC=C1

InChI

1S/C5H5N/c1-2-4-6-5-3-1/h1-5H

InChI key

JUJWROOIHBZHMG-UHFFFAOYSA-N

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Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

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

68.0 °F - closed cup

flash_point_c

20 °C - closed cup

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
14896TMV
SHBB0756V
03796LJ
48196AM
09939MA

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The far-infrared spectra of metal-halide complexes of pyridine and related ligands.
Clark RJH and Williams CS.
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Total syntheses of complanadines A and B.
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