Organic Acids
REACH
Methyl nadic anhydride
CAS Number
25134-21-8
EC Number
246-644-8
Abbreviation
MNA
What is Methyl nadic anhydride?
Methyl nadic anhydride (CAS 25134-21-8), also known as nadic methyl anhydride or MNA, is a cycloaliphatic anhydride used as a curing agent and reactive intermediate in high-performance polymer systems.
Where is Methyl nadic anhydride used?
- Aerospace and automotive composites: epoxy resin formulations producing cured systems with high glass transition temperatures and long pot life for large-part processing
- Electronics: encapsulation and potting of components where dimensional stability is required
- Electrical laminates and printed circuit board resins: low dielectric loss and resistance to moisture uptake
- Adhesives and sealants: flexibility, with cycloaliphatic chemistry improving UV stability over aromatic alternatives
- It delivers thermally stable, chemically resistant cured networks suited to demanding structural and electrical applications.
Commercial specifications
- Purity typically specified at 95% or higher
- Standard packaging from drums to intermediate bulk containers
Other Names (Synonyms)
Methylbicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride|Methyl himic anhydride|Nadic methyl anhydride|Kayahard MCD|Epicure NMA|Methendic anhydride|Hardener HY906|Methylendic anhydride|MNA
What are the physical properties of Methyl nadic anhydride?
Boiling Point 140°C (10 mmHg)
Density 1.200-1.250 g/cm³ @ Temp: 20 °C
Flash Point >230 °F
Appearance clear light yellow oily liquid
Color Clear light yellow
Form Oily Liquid
Water Solubility REACTS
Vapor Pressure 5 mm Hg ( 120 °C)
Refractive Index n 20/D 1.506(lit.)
Log P -4.01 at 20℃
How is Methyl nadic anhydride classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS06· Toxic GHS07· Irritant GHS08· Health Hazard
Hazard Statements
H302 Harmful if swallowed
H314 Causes severe skin burns and eye damage
H315 Causes skin irritation
H317 May cause an allergic skin reaction
Precautionary Statements
P233 Keep container tightly closed.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
Which trade and regulatory codes apply to Methyl nadic anhydride?
HS Code 29172000
UN Number 3265
ADR Class 8
Packing Group II
Storage Class 8A - Combustible corrosive hazardous materials
WGK (Germany) 3