UNunnums
2522

UN 25222-Dimethylaminoethyl methacrylate

Proper shipping name: 2-Dimethylaminoethyl methacrylate, stabilized

Division 6.1

Toxic substances

Summary

UN 2522 is the UN number for 2-Dimethylaminoethyl methacrylate. It is classed in Division 6.1 (toxic substances) of Class 6 for transport. Packing group II. Emergency responders use ERG guide 153P.

Emergency response

The Emergency Response Guidebook (ERG2024) guide for this number:

  • Guide153P2-Dimethylaminoethyl methacrylate, stabilized

A “P” after the guide number means the material may suffer a violent polymerization.

From the 2024 Emergency Response Guidebook (ERG2024), published by U.S. Department of Transportation, PHMSA. Read the full guide in the ERG or on CAMEO Chemicals.

Identification

UN number
UN 2522
Name
2-Dimethylaminoethyl methacrylate
Hazard class
Class 6: Toxic and infectious substances
Division
6.1: Toxic substances
Packing group
II
What the class covers
Substances liable to cause death, serious injury or harm to health if swallowed, inhaled or absorbed through the skin.

U.S. Hazardous Materials Table

The entry for this number in 49 CFR 172.101.

  • UN25222-Dimethylaminoethyl methacrylate, stabilized

    Special provisions: 387, IB2, T7, TP2

    Class
    6.1
    Packing group
    II
    Labels
    6.1

From the eCFR edition of 49 CFR 172.101 dated 2026-10-05 (section last amended 2026-09-08). The eCFR is an editorial compilation, not the official legal edition. Read the current table.

About Class 6

Class 6 covers poisons and infectious material. Division 6.1 is toxic substances that harm people if swallowed, inhaled or absorbed through the skin; 6.2 is infectious substances such as cultures and medical waste.

See all Class 6 UN numbers

Check the official sources

For emergency response, packaging and quantity limits, use these: