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About This Item

Empirical Formula (Hill Notation):
C5H5N
CAS Number:
110-86-1
Molecular Weight:
79.10
MDL number:
MFCD00011732
UNSPSC Code:
12191501
EC Index Number:
203-809-9
Assay:
≥99% (GC)
Technique(s):
HPLC: suitable
LC/MS: suitable
gas chromatography (GC): suitable
Bp:
115 °C/1013 hPa
Vapor pressure:
26.7 hPa ( 25 °C)
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vapor pressure

26.7 hPa ( 25 °C)

Quality Level

100

product line

OmniSolv®

Assay

≥99% (GC)

form

liquid

technique(s)

HPLC: suitable
LC/MS: suitable
gas chromatography (GC): suitable

impurities

≤0.05% Water (H2O)

evapn. residue

≤4 ppm

color

APHA: ≤10, at time of manufacture

pH

8.81 (20 °C in H2O)

bp

115 °C/1013 hPa

mp

-42 °C

transition temp

flash point 17 °C

density

0.982 g/cm3 at 20 °C

UV cutoff

≤330 nm

UV absorption

λ: 330 nm Amax: ≤1.00
λ: 340 nm Amax: ≤0.30
λ: 350 nm Amax: ≤0.10
λ: 400 nm Amax: ≤0.01

shipped in

ambient

storage temp.

room temp

SMILES string

n1ccccc1

InChI

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

InChI key

JUJWROOIHBZHMG-UHFFFAOYSA-N

Related Categories

General description

Pyridine is a high-purity polar, basic, and nitrogen-containing heterocyclic solvent widely used in analytical chemistry. Its high solvency power, miscibility with water and organic solvents, and compatibility with UV detection make it suitable for LC/MS, GC, and other chromatographic techniques, especially in the analysis of polar and basic compounds.

Application

Pyridine can be used as a:
  • Solvent for sample preparation and derivatization in GC analysis of polar compounds, including alcohols, esters, and organic acids.
  • Mobile phase component or sample diluent in LC-MS workflows, particularly for pharmaceutical, metabolomic, and environmental analyses due to its ionization efficiency and low background noise.

Packaging

M-Bottle for Solvents
As a global leader in lab reagents, we are constantly looking for new ways to optimize the safety of our products. The newly developed 4L solvent bottle design features advanced sealing technology that eliminates leaks to make the handling of solvents safer and more convenient than ever before.
See all the new features here!

Preparation Note

Product filtered through a 0.2 μm filter

Analysis Note

Assay (GC)99.0% minColor (APHA) at time of manufacture10 maxEvaporation residue4ppm maxFiltered through 0.2 µm filterTo pass testFormClear liquidInfrared SpectrumConforms to standardUV Abs. at 330 nm1.00AU maxUV Abs. at 340 nm0.30AU maxUV Abs. at 350 nm0.10AU maxUV Abs. at 400 nm0.01AU maxUV Cut-off330nm maxWater (H2O)0.05% max
Evaporation Number: 12.7

Legal Information

OMNISOLV is a registered trademark of Merck KGaA, Darmstadt, Germany

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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