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UN identification number

UN2618: Vinyltoluenes, stabilized

UN2618 appears 1 time in the Hazardous Materials Table (49 CFR §172.101). Hazard class 3, packing group III.

ID numberUN2618
Hazard class3
Packing groupIII
Label codes3

All §172.101 entries for UN2618

Proper shipping nameClassPGLabels
Vinyltoluenes, stabilized3III3

Open any entry for packaging sections, special provisions, air limits and vessel stowage.

What it means

3
Class 3 — Flammable liquid. Liquids that give off vapors that can ignite — for example gasoline, acetone, and many solvents.

Packing group ranks danger within the class: PG III = minor danger.

Label codes (column 6): 3 → Flammable liquid label.

UN numbers are recognized for international and domestic transport.

Example basic description

UN2618, Vinyltoluenes, stabilized, 3, PG III

Proper shipping name shown without the table's italic descriptive text. Order per §172.202: ID number, proper shipping name, hazard class, packing group. Example only — add technical names, “RQ”, quantities and other elements your shipment requires.

What to check next

  1. Match the name. Compare your SDS Section 14 to the proper shipping names above and pick the row with your packing group.
  2. Read the special provisions on the entry page (§172.102) — they can add limits or exceptions.
  3. Check packaging — the entry page lists the Part 173 sections for exceptions, non-bulk and bulk.
  4. Labels & placards. Placarding depends on class and quantity — see Table 1 vs Table 2.
  5. Emergency response. Find the response guide for UN2618 in the current PHMSA Emergency Response Guidebook.
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Common questions about UN2618

What is UN2618?

UN2618 is the identification number for Vinyltoluenes, stabilized in the DOT Hazardous Materials Table (49 CFR §172.101).

What hazard class is UN2618?

UN2618 is listed under hazard class 3 (flammable liquid).

What packing group is UN2618?

Packing group for UN2618: III. Where several rows exist, the packing group that fits your material decides which row applies.

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Source: Hazardous Materials Table (49 CFR §172.101), eCFR.gov — current as of Oct 23, 2026. View the official table. Reference only — verify current requirements before shipping.