Overview
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.
It delivers thermally stable, chemically resistant cured networks suited to demanding structural and electrical applications. In epoxy resin formulations for aerospace and automotive composites, MNA produces cured systems.
These systems feature high glass transition temperatures and long pot life, which are critical for large-part processing. Electronics manufacturers use it to encapsulate and pot components where dimensional stability is required.
In electrical laminates and printed circuit board resins, MNA contributes to low dielectric loss and resistance to moisture uptake. Adhesive and sealant formulators incorporate it into systems requiring flexibility.
This is particularly useful where cycloaliphatic chemistry improves UV stability over aromatic alternatives. Methyl nadic anhydride is supplied as a low-viscosity liquid, facilitating direct blending with liquid epoxy systems.
It is available in technical and industrial grades, with purity levels typically specified at 95% or higher. Standard packaging ranges from drums to intermediate bulk containers for high-volume compounders.
Contact us for supply of Methyl nadic anhydride
Physical Properties
| 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℃ |
Safety & Handling
Danger GHS05 GHS06 GHS07 GHS08 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 H318 Causes serious eye damage H319 Causes serious eye irritation H331 Toxic if inhaled H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled H335 May cause respiratory irritation 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. 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. P280 Wear protective gloves/protective clothing/eye protection/face protection. P284 In case of inadequate ventilation wear respiratory protection. P316 Get emergency medical help immediately. P317 Get emergency medical help. 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. 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. P342+P316 Get emergency medical help immediately. P362+P364 Take off contaminated clothing and wash it before reuse. 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 | 29172000 |
| UN Number | 3265 |
| ADR Class | 8 |
| Packing Group | II |
| Storage Class | 8A - Combustible corrosive hazardous materials |
| WGK (Germany) | 3 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 25134-21-8
- EC Number
- 246-644-8
- Mol. Weight
- 178.18
- HS Code
- 29172000
- Category
- Polymers & Resins