Metal salts of organic compounds, flammable, n.o.s
Class 4.1
UN Number
UN3181
Hazard Class
4.1
Packing Group
Not assigned
Hazard Labels / Marks
Division 4.1 - Flammable Solid
Note
Packing group varies (II/III) by concentration or form per the §172.101 row — verify against the current edition for your material.
This is the reference entry for UN3181.
To verify your actual package — labels, marks, SDS and packaging — scan it with DG Inspector. It reads the real evidence in front of you and shows the reasoning so you can check it.
A reference lookup is a dictionary, not a compliance verdict. It tells you what UN3181 requires; it cannot confirm that your specific shipment meets those requirements.