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4-methylpyridine

CAS Number
108-89-4
EC Number
203-626-4
Chemical Formula
C6H7N
Molecular Weight
93.13 g/mol

Description

4-Methylpyridine (CAS 108-89-4 ) is a pyridine-based heterocyclic building block used across pharmaceutical synthesis, agrochemical manufacturing, and specialty chemical production. It functions primarily as a reactive intermediate and catalyst. In pharmaceuticals, it serves as a key precursor in the synthesis of isonicotinic acid derivatives and active pharmaceutical ingredients targeting cardiovascular and neurological conditions. Agrochemical producers use it to manufacture herbicides. In coatings and adhesive formulations, it acts as a curing catalyst and crosslinking accelerator for epoxy systems, influencing cure rate and final film performance. It is also known as p-picoline or gamma-picoline. At trace concentrations, it contributes roasted and nutty flavor notes in food applications, with usage governed by FEMA -recognized flavor standards. This versatility makes it essential for various industrial sectors. The compound is supplied as a liquid at standard commercial purities, typically 98% and 99%+ grades for pharmaceutical and synthesis applications. Technical-grade material is available for industrial catalyst use. Packaging ranges from drums to ISO tank quantities depending on volume requirements. Our supply chain ensures consistent quality meeting USP and FCC standards where applicable for specific high-purity industrial needs. Contact us for supply of 4-methylpyridine Request Quote

Other Names (Synonyms)

p-picoline | p-methylpyridine | gamma-picoline | 4-picoline | 4-Mepy | Pyridine, 4-methyl- | gamma-Methylpyridine | Ba 35846 | 4-MP

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point3.66 °C
Boiling Point145 °C @ Press: 760 Torr
Density0.9548 g/cm³ @ Temp: 20 °C
Flash Point134 °F
AppearancePicolines are colorless liquids. Strong, unpleasant, pyridine-like odor.“Picoline” is often used as mixed isomers.
ColorClear light yellow
OdorObnoxious, Sweetish
FormLiquid
Water Solubilitysoluble
Vapor Pressure4 mm Hg ( 20 °C)
Refractive Indexn 20/D 1.504(lit.)
Log P1.22 at 25℃

Safety & Handling

Danger
GHS02· FlammableGHS06· ToxicGHS07· IrritantGHS08· Health Hazard

Hazard Statements

H226
H226
H302
H302
H311
H311
H315
H315
H319
H319
H332
H332
H335
H335
H336
H336
H372H372

Precautionary Statements

P210
P210
P233
P233
P240
P240
P241
P241
P242
P242
P243
P243
P260
P260
P261
P261
P262
P262
P264
P264
P270
P270
P271
P271
P280
P280
P316
P316
P317
P317
P319
P319
P321
P321
P330
P330
P405
P405
P501
P501
P265
P265
P317
P317
P352
P352
P340
P340
P317
P317
P317
P317
P364
P364
P364
P364
P378
P378
P233
P233
P235
P235
P353
P353
P338

Trade & Regulatory

HS Code29333955
UN Number1992
ADR Class3
Packing GroupIII
Storage Class3 - Flammable liquids
WGK (Germany)1