UN1128 — n-Butyl formate

Class 3

Quick facts: UN1128

What it is
n-Butyl formate
Hazard class
3
Packing group
II
Label
Class 3 - Flammable Liquid
Packaging (49 CFR 173)
Exceptions §173.150 · Non-bulk §173.202 · Bulk §173.242
Air limit per package
Passenger aircraft: 5 L · Cargo aircraft: 60 L
Special provisions
IB2, T4, TP1

Source: 49 CFR 172.101 Hazardous Materials Table — UN1128 (2025-01-01)

UN Number
UN1128
Hazard Class
3
Packing Group
II

Hazard Labels / Marks

  • Class 3 - Flammable Liquid

Source: 49 CFR §172.101 Hazardous Materials Table · 49 CFR §172.101 (2025-01-01)

Reference data transcribed from the published Dangerous Goods List. It is not legal advice and may not capture entry-specific exceptions, special provisions or packing-group ranges. Always verify against the current regulation edition for a specific shipment.

This is the reference entry for UN1128.

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