2-Methyl-5-ethylpyridine

Synonyms

5-Ethyl-2-picoline; 2,5-Aldehydine; 2-Picoline, 5-ethyl-; 3-Ethyl-6-methylpyridine; 5-Ethyl-2-methylpyridine; 5-Ethyl-alpha-picoline; 6-Methyl-3-ethylpyridine; Aldehydecollidine; Aldehydine; Aldehydkollidin; MEP; MEP (VAN); Pyridine, 5-ethyl-2-methyl-; [ChemIDplus] UN2300

Category

Pyridines

Description

Colorless liquid with a sharp, penetrating odor; [Hawley] Colorless or pale yellow liquid; [MSDSonline]

Sources/Uses

Used as a corrosion inhibitor for chlorinated solvents and in the manufacturing of other chemicals (nicotinic acid, nicotinamide, vinyl pyridines for copolymers, germicides, insecticides, and textile finishes); [HSDB] Used as a solvent in organic synthesis; [eChemPortal: SIDSUNEP]

Comments

Emergency treatment: "Pyridine"; Pyridine is an irritant that causes CNS depression after ingestion of 1/2 cup or inhalation of 6-12 ppm; It can cause liver and kidney injury; [HSDB] A severe irritant on rabbit skin; [RTECS] May cause burns to skin and eyes; [CAMEO] Corrosive to skin and eyes, based on animal studies; [CHEMINFO] Safe when used as a flavoring agent in food; [JECFA] Causes burns; Harmful by inhalation or ingestion; [Aldrich MSDS] See "Pyridine."

Biomedical References

1.43 mm Hg

LC50 (rat) = 540 ppm/4h

Explanatory Notes

Flash point = 68 deg C; [HSDB] VP from ChemIDplus;

high ambient temp required

Other CNS neurotoxin

Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion

Skin burns

Processes

Industrial Processes with risk of exposure:

• Metal Extraction and Refining