Dytek® 2M3BN, also known as 2-methyl-3-butenenitrile, serves multiple functions as a curing agent, monomer, intermediate, and accelerator across various industries. Its applications include dye intermediates, rubber accelerators, flavor and fragrance components, and base chemicals. It is utilized in end products such as dyes, flavors, fragrances, and rubber goods.

Chemical Name: 2-methyl-3-butenenitrile

CAS Number: 16529-56-9

Functions: Accelerator, Curing Agent, Intermediate, Monomer

Chemical Family: Nitriles

Synonyms: 2-Methyl-3-butenonitrile, 3-Cyanobut-1-ene

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Base Chemicals Functions
CASE Ingredients Functions
Plastics & Elastomers Functions
EC No.
  • Mono- and di-(2-methylbutyl)amine
  • 2-Methyl-3-butenoic acid
  • 2-Methyl-2-butenoic, angelic, and tiglic acids
  • 2-Methylbutyric acid, esters, and polyol esters
  • Aminoalkyl silanes
Molecular Structure

INVISTA Dytek 2M3BN Molecular Structure

Applications & Uses

Base Chemicals End Uses
Recommended Uses & Known Applications
  • Dye intermediate
  • Rubber accelerator
  • Flavor and fragrance
  • Monomer
  • Lubricant


Typical Properties
ValueUnitsTest Method / Conditions
2-Methyl-3-Butenenitrile Content88wt%
Boiling Point (Pure 2M3BN)125 (257)°C (°F)
Boiling Range121–145 (250-293)°C (°F)
Flash Point15 (54)°C (°F)Closed Cup
Molecular Weight81.81g/mol
Specific Gravity (at 25°C (77°F))0.8
trans-2-Methyl-2-Butenenitrile Content3wt%
Vapor Pressure (at 20°C (77°F))12mmHg
Water Content65ppm

Packaging & Availability

Packaging Information
Tank truck Net Weight : 42,000/19,000 (lbs/kg)
ISO container Net Weight : 40,000/18,100 (lbs/kg)
Steel Drums Net Weight : 350/158.77 (lbs/kg)
DOT/IMO Proper Shipping Name Nitriles, Flammable, Toxic, N.O.S. (2- Methyl-3-Butenenitrile, 3-Pentenenitrile)
Hazard Class 3
Subsidiary Hazard Class 6.1
UN Number 3273
Packaging Group II
DOT/IMO Label Flammable Liquid