English Safety Data Sheet Database 中文版 MSDS

2,4-dimethylpyridine

CAS No. 108-47-4 | PubChem CID 7936
Section 1. Identification
Chemical Name2,4-dimethylpyridine CAS No.108-47-4
Synonyms2,4-lutidine Chinese Name2,4-二甲基吡啶
Molecular FormulaC7H9N Molecular Weight107.17
UN No.1992 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word WARNING
Pictograms GHS02 · Flammable GHS07 · Irritant
Hazard Statements H226H302H312H332
Precautionary Statements P210P233P240P241P242P243P261P264P270P271P280P301+P317P302+P352P303+P361+P353P304+P340P317P321P330P362+P364P370+P378P403+P235P501

Section 2. Hazards Identification

H226 (11.3%): Flammable liquid and vapor [Warning Flammable liquids]

H302 (94.8%): Harmful if swallowed [Warning Acute toxicity, oral]

H312 (96.9%): Harmful in contact with skin [Warning Acute toxicity, dermal]

H332 (96.6%): Harmful if inhaled [Warning Acute toxicity, inhalation]

P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P317, P321, P330, P362+P364, P370+P378, P403+P235, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 1450 reports by companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

Section 8. Exposure Controls / Personal Protection

0.60 [mg/m3]

6.6 [mg/m3]

40 [mg/m3]

Section 9. Physical and Chemical Properties

Dark red hygroscopic liquid; [Aldrich MSDS]

Yellowish liquid; Smoky phenolic odor

158-159º

145.7 °C @760 [mm Hg]

350 mg/mL at 25 °C

Slightly soluble in water

Soluble (in ethanol)

0.929 - 0.935 (20º)

3.17 [mmHg]

5.65 [mm Hg] @25 °C

1.496-1.502

15N nuclear magnetic resonance spectrum

Boiling point

Chemical shift

Diamagnetic susceptibility

Dielectric constant

Excess enthalpy

Fusion temperature

Heat of solution

Heat of sublimation

Magnetic susceptibility

Melting temperature

Mixing enthalpy

Nuclear quadrupole resonance spectroscopy

Optical coefficient

Phase diagram

Phase equilibrium

Phase transition

Quadrupole coupling

Refractive index

Spin-spin coupling constant

Surface tension

Transition enthalpy

Vapor pressure

Vapor-liquid equilibrium

Virial coefficient

Viscosity

Nitrogen Compounds -> Pyridines

EU Flavoring substances

FLAVORING AGENT OR ADJUVANT -> FDA Substance added to food

Source: PubChem CID 7936 (NIH/NLM, public domain). Retrieved from PubChem, a public-domain chemistry database maintained by the U.S. National Library of Medicine. Last updated: 2026-08-02 08:58:23.
Disclaimer: This information is compiled for reference only and does not replace the manufacturer's official Safety Data Sheet. Always consult the supplier's SDS before handling any chemical.