676772

Pyridine

ACS reagent, ≥99.0%

• Empirical Formula (Hill Notation): C₅H₅N
• CAS Number: 110-86-1
• Molecular Weight: 79.10
• EC Number: 203-809-9
• UNSPSC Code: 12352005
• PubChem Substance ID: 329760652
• Beilstein/REAXYS Number: 103233
• MDL number: MFCD00011732
• Assay: ≥99.0%
• Grade: ACS reagent
• Bp: 115 °C (lit.)
• Vapor pressure: 10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)

Properties

• InChI key: JUJWROOIHBZHMG-UHFFFAOYSA-N
• InChI: 1S/C5H5N/c1-2-4-6-5-3-1/h1-5H
• SMILES string: C1=CN=CC=C1
• grade: ACS reagent
• vapor density: 2.72 (vs air)
• vapor pressure: 10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)
• assay: ≥99.0%
• form: liquid
• autoignition temp.: 899 °F
• expl. lim.: 12.4 %
• dilution: (for analytical testing)
• impurities: ≤0.002% NH₃, 0.1% water
• evapn. residue: ≤0.002%
• refractive index: n20/D 1.509 (lit.)
• pH: 8.5 (25 °C, 15.82 g/L)
• bp: 115 °C (lit.)
• mp: −42 °C (lit.)
• solubility: water: soluble
• density: 0.978 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤0.001%, sulfate (SO₄^2-): ≤0.001%
• cation traces: Cu: ≤5 ppm
• Quality Level: 200

Description

Application

Pyridine may be used in the synthesis of the following:

• complexes with cobalt(II) halides[1]
• pyridine-d ₅, a deuterated form of pyridine[2]
• ionic liquid matrices (ILMs)[3]

General description

Our premium ACS solvents are ideal for routine chemical synthesis, drying, purification, and critical labware cleaning. They meet or exceed the rigorous standards of the American Chemical Society (ACS), ensuring high-quality results for your research needs.

Premium ACS Solvents: Our solvents meet or exceed the stringent standards set by the American Chemical Society, ensuring high quality and reliability for your laboratory applications.

Replicable and Publishable Results: Designed for consistency, our solvents deliver results that can be reliably reproduced, making them ideal for research that requires publication.

Versatile Applications: Suitable for routine chemical synthesis, drying, purification, and critical labware cleaning, our solvents cater to a wide range of research needs in the laboratory.

Pyridine (Pyr) is a nitrogen containing six membered heterocyclic compound commonly used as a base. It is a colorless liquid with a fishy odor. Pyridine moiety is present as a major component in a number of compounds like pyridine nucleotides,[4] pyridine alkaloids,[5] pyridine-based polymers[6] and pyridine-containing macrocycles.[7] It has wide application as a solvent, catalyst and as an intermediate for synthesis.[8] IR, Raman and UV spectra of pyridine have been analyzed and the values obtained were used to calculate its thermodynamic properties.[9] Photodegradation[10] and bacterial degradation of Pyr has been studied.[11]

Safety Information

• pictograms: GHS02,GHS07
• signalword: Danger
• hcodes: H225,H302 + H312 + H332,H315,H319
• pcodes: P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P312 - P305 + P351 + P338
• 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: WGK 2
• flash_point_f: 68.0 °F - closed cup
• flash_point_c: 20 °C - closed cup