02486

Pyridine

analytical standard

• Empirical Formula (Hill Notation): C₅H₅N
• CAS Number: 110-86-1
• Molecular Weight: 79.10
• UNSPSC Code: 41116107
• NACRES: NA.24
• PubChem Substance ID: 329747447
• EC Number: 203-809-9
• Beilstein/REAXYS Number: 103233
• MDL number: MFCD00011732

Properties

• grade: analytical standard
• Quality Segment: 100
• vapor density: 2.72 (vs air)
• vapor pressure: 10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)
• assay: ≥99.9% (GC)
• autoignition temp.: 899 °F
• shelf life: limited shelf life, expiry date on the label
• expl. lim.: 12.4 %
• technique(s): HPLC: suitable, gas chromatography (GC): suitable
• refractive index: n20/D 1.509 (lit.), n20/D 1.510
• bp: 115 °C (lit.)
• mp: −42 °C (lit.)
• density: 0.978 g/mL at 25 °C (lit.)
• application(s): cleaning products; cosmetics; environmental; flavors and fragrances; food and beverages; personal care
• format: neat
• SMILES string: C1=CN=CC=C1
• InChI: 1S/C5H5N/c1-2-4-6-5-3-1/h1-5H
• InChI key: JUJWROOIHBZHMG-UHFFFAOYSA-N

Description

General description

Pyridine is a heterocyclic compound and a toxic chemical, which is widely used as a solvent and intermediate in the production of dyes, rubber products, paints, textile water repellents, agricultural chemicals, chemical laboratories, manufacturing of piperidine, etc. It plays an important role in the sensory properties of cigarette smoke and exists as a volatile component in certain food products.

Application

Pyridine may be used as an analytical reference standard for the quantification of the analyte in cigarette smoke using reversed-phase liquid chromatography/electrospray ionization tandem mass spectrometry (RP-HPLC–ESI-MS/MS).

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
• ppe: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter