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82704

Sigma-Aldrich

Pyridine

puriss., absolute, over molecular sieve (H2O ≤0.005%), ≥99.8% (GC)

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About This Item

Empirical Formula (Hill Notation):
C5H5N
CAS Number:
110-86-1
Molecular Weight:
79.10
Beilstein:
103233
EC Number:
203-809-9
MDL number:
MFCD00011732
UNSPSC Code:
12352005
PubChem Substance ID:
57652927

vapor density

2.72 (vs air)

vapor pressure

10 mmHg ( 13.2 °C)
20 mmHg ( 25 °C)

grade

absolute
puriss.

Assay

≥99.8% (GC)

autoignition temp.

899 °F

quality

over molecular sieve (H2O ≤0.005%)

expl. lim.

12.4 %

impurities

≤0.005% water
water

refractive index

n20/D 1.509 (lit.)

bp

115 °C (lit.)

mp

−42 °C (lit.)

solubility

water: soluble

density

0.978 g/mL at 25 °C (lit.)

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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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)

68.0 °F - closed cup

Flash Point(C)

20 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PRTR

Class I Designated Chemical Substances

FSL

Group 4: Flammable liquids
Type 1 petroleums
Hazardous rank II
Water soluble liquid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

82704-1L:
82704-6X1L:
82704-BULK:
82704-250ML:

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Certificates of Analysis (COA)

Lot/Batch Number
STBK8972
STBK9525
STBK8970
STBK8968
STBK6987

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Journal of Materials Chemistry, 21(17), 6365-6369 (2011)
Metal-organic frameworks based on iron oxide octahedral chains connected by benzenedicarboxylate dianions.
Whitfield TR, et al.
Solid State Sciences, 7(9), 1096-1103 (2005)
The far-infrared spectra of metal-halide complexes of pyridine and related ligands.
Clark RJH and Williams CS.
Inorganic Chemistry, 4(3), 350-357 (1965)
An investigation of Knoevenagel condensation reaction in microreactors using a new zeolite catalyst.
Zhang X, et al.
Applied Catalysis A: General, 261(1), 109-118 (2004)
Total syntheses of complanadines A and B.
Le Zhao et al.
Angewandte Chemie (International ed. in English), 52(6), 1722-1725 (2013-01-03)
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