SoleChem

5-ethyl-2-methylpyridine

Catalysts & Catalyst Precursors Personal Care & Cosmetics
CAS
104-90-5
EC
203-250-0
Mol. Weight
121.18 g/mol

Description

5-Ethyl-2-methylpyridine (CAS 104-90-5), commercially known as 5-ethyl-2-picoline or MEP, is a pyridine-base intermediate used as a building block in the synthesis of vitamins, agrochemicals, and pharmaceutical compounds.

It also carries FEMA 3546 status, recognizing its role as a flavoring agent in food applications. MEP is a primary raw material in the industrial production of nicotinic acid and nicotinamide.

In these processes, it undergoes catalytic oxidation at scale. In agrochemical manufacturing, it serves as a precursor to active ingredients in herbicide and pesticide formulations for global distribution.

Food and beverage producers use it as a flavoring agent to impart roasted, nutty, or popcorn-like notes in processed products at permitted use levels. It is highly valued for its specific profile.

Fragrance formulators incorporate it into compositions targeting savory or tobacco-adjacent scent profiles. 5-Ethyl-2-picoline is supplied as a liquid, typically in drums or ISO tank containers for bulk orders.

Technical grade is the standard commercial specification, with purity levels commonly at 98% or higher by GC. Food-grade material meeting FEMA compliance is available for flavor and fragrance applications.

These materials are produced to meet rigorous quality standards for industrial use. Our logistics network ensures that all shipments of this intermediate arrive safely and meet your specific production requirements.

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Physical Properties

Melting Point -70.9 °C
Boiling Point 177.8 °C @ Press: 747 Torr
Density 0.9184 g/cm³ @ Temp: 23 °C
Flash Point 151 °F
Appearance 2-Methyl-5-ethyl pyridine is a colorless liquid with a sharp, aromatic odor.
Color Colorless to Light orange to Yellow
Odor at 0.10 % in propylene glycol. nutty strong raw potato roasted earthy
Form clear liquid
Water Solubility practically insoluble
Vapor Pressure 1.853hPa at 20℃
Refractive Index n 20/D 1.497(lit.)
Log P 2.1 at 22℃

Safety & Handling (Learn More)

Danger GHS05 GHS06 GHS07 GHS08
Hazard Statements
H227 Combustible liquid
H302 Harmful if swallowed
H311 Toxic in contact with skin
H314 Causes severe skin burns and eye damage
H315 Causes skin irritation
H317 May cause an allergic skin reaction
H318 Causes serious eye damage
H319 Causes serious eye irritation
H331 Toxic if inhaled
H336 May cause drowsiness or dizziness
H361 Suspected of damaging fertility or the unborn child
H371 May cause damage to organs
H402 Harmful to aquatic life
H412 Harmful to aquatic life with long lasting effects
H311+H331 Toxic in contact with skin or if inhaled.
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P262 Do not get in eyes, on skin, or on clothing.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P272 Contaminated work clothing should not be allowed out of the workplace.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P316 Get emergency medical help immediately.
P317 Get emergency medical help.
P318 IF exposed or concerned, get medical advice.
P319 Get medical advice/attention if you feel unwell.
P321 Specific treatment (see … on this label).
P330 Rinse mouth.
P363 Wash contaminated clothing before reuse.
P403 Store in a well-ventilated place.
P405 Store locked up.
P501 Dispose of contents/container in accordance with local regulations.
P264+P265 Wash … thoroughly after handling.
P301+P317 Get emergency medical help.
P302+P352 IF ON SKIN: Wash with plenty of water.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P308+P316 Get emergency medical help immediately.
P332+P317 Get emergency medical help.
P333+P317 Get emergency medical help.
P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P361+P364 Take off immediately all contaminated clothing and wash it before reuse.
P362+P364 Take off contaminated clothing and wash it before reuse.
P370+P378 Use … for extinction.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P301+P330+P331 Rinse mouth. Do NOT induce vomiting.
P302+P361+P354 IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code 29333990
UN Number 2300
ADR Class 6.1
Packing Group III
Storage Class 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects
WGK (Germany) 3

Documentation

Other Names

5-Ethyl-2-picoline|2-METHYL-5-ETHYLPYRIDINE|Pyridine, 5-ethyl-2-methyl-|2-Picoline, 5-ethyl-|5-Ethyl-alpha-picoline|5-Ethyl-α-picoline|MEP

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