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Key Documents

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Safety Information

270970

Sigma-Aldrich

Pyridine

anhydrous, 99.8%

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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:
57648214
NACRES:
NA.21
grade:
anhydrous
bp:
115 °C (lit.)
vapor pressure:
10 mmHg ( 13.2 °C)
20 mmHg ( 25 °C)
Pricing and availability is not currently available.

grade

anhydrous

Quality Level

200

vapor density

2.72 (vs air)

vapor pressure

10 mmHg ( 13.2 °C)
20 mmHg ( 25 °C)

Assay

99.8%

form

liquid

autoignition temp.

899 °F

expl. lim.

12.4 %

impurities

<0.003% water
<0.005% water (100 mL pkg)

evapn. residue

<0.0005%

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1 of 4

This Item
3355316037P57506M
Pyridine anhydrous, 99.8%

270970

Pyridine

Pyridine puriss. p.a., ACS reagent, reag. Ph. Eur., &#8805;99.5% (GC)

33553

Pyridine

Pyridine &#8805;99.5% (GC)

16037

Pyridine

Pyridine reagent grade, &#8805;99%

P57506M

Pyridine

grade

anhydrous

grade

ACS reagent, puriss. p.a.

grade

-

grade

reagent grade

Quality Level

200, 300

Quality Level

200

Quality Level

-

Quality Level

-

form

liquid

form

liquid

form

liquid

form

liquid

vapor pressure

10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)

vapor pressure

10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)

vapor pressure

10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)

vapor pressure

10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)

pH

~8.81 (20 °C)

pH

8.5 (25 °C, 15.82 g/L)

pH

-

pH

8.5 (25 °C, 15.82 g/L)

General description

Pyridine is a basic N-heterocyclic compound. It acts as nitrogen donor ligand and forms many metal-pyridine complexes. Its complexes having tetrahedral and octahedral geometries can be differentiated by infra-red spectral investigations.[1]

Application

Pyridine (py) may be used in the preparation of vanadium oxide nanoparticles[2] and iron benzenedicarboxylates, Fe(OH)(BDC)(py)0.85 (BDC = 1,4-benzenedicarboxylate, py = pyridine).[3] It may be employed as catalyst in Knoevenagel condensation reaction.[4]
Pyridine may be used as a base for the conversion of:
  • Alkyltrichlorosilanes to trimethoxyalkylsilanes, which are used as precursors for preparing alkylsilicates.[5]
  • 1-Indanone to 1-indanone oxime, which can undergo reductive ring-expansion to form tetrahydroquinoline.[6]

It may also be used to catalyze the borylation reaction of haloarenes to form arylboronates without using transition metal catalysts.[7]

Packaging

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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 Information

危险化学品
  • Specification Sheet

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    Certificates of Analysis (COA)

    Lot/Batch Number
    SHBS6759
    SHBS5219
    SHBS5070
    SHBS5069
    SHBS1313

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    Find documentation for the products that you have recently purchased in the Document Library.

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    DIBALH-Mediated Reductive Ring-Expansion Reaction of Cyclic Ketoxime
    Taku I, et al
    Organic Syntheses, 93, 1-1 (2016)
    Preparation of Diisopropylammonium Bis(catecholato)cyclohexylsilicate
    Kingson L, et al
    Organic Syntheses, 94, 16-16 (2017)
    Pyridine-catalyzed radical borylation of aryl halides
    Zhang L & Jiao L
    Journal of the American Chemical Society, 139(2), 607-610 (2017)
    Tooran Khazraie et al.
    Biotechnology for biofuels, 10, 47-47 (2017-03-03)
    Hot water hydrolysis process is commercially applied for treating wood chips prior to pulping or wood pellet production, while it produces hydrolysis liquor as a by-product. Since the hydrolysis liquor is dilute, the production of value-added materials from it would
    Maryam Shamloo et al.
    Scientific reports, 7(1), 9133-9133 (2017-08-24)
    Predictions of global increased temperature are for 1.8-4 °C by 2100. Increased temperature as an abiotic stress may exert a considerable influence on the levels of secondary metabolites in plants. These secondary metabolites may possibly exert biological activities beneficial in prevention
    View All Related Papers

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