UN 2671 — Aminopyridines
Placard: Toxic. ERG Guide 153. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 2671 At a Glance
UN 2671 (Aminopyridines) is listed as DOT Class 6 Toxic and is assigned to ERG Guide 153. Use this page to review placard data, common hazards, PPE notes, isolation context, first actions, and related UN numbers.
UN 2671 is Aminopyridines, a toxic aminopyridine isomer group assigned to ERG Guide 153. Exact isomer and molten/dust exposure should be verified.
Hazard overview: TOXIC aminopyridine isomer group; inhalation, ingestion or skin absorption may cause severe injury. Skin contact and contaminated clothing can extend exposure. Combustible solid: may burn but does not ignite readily.
Response guidance: For UN 2671, isolate the area, avoid skin contact and use SCBA where dust, vapor, mist or fire is present. Control ignition or moisture hazards as applicable and contain toxic/corrosive runoff.
Firefighter training notes: Training for UN 2671 should emphasize toxic exposure routes, SCBA use, dust/vapor monitoring, fire behavior, decontamination, runoff containment and SDS verification. Use ERG 153, SDS and local SOP.
Regulatory context: Aminopyridines is regulated as a hazardous material for transport and emergency response. Storage, exposure, spill reporting, waste and fire-code duties depend on quantity, concentration and jurisdiction; verify shipping papers, SDS and local authority requirements.
Storage & handling: Aminopyridines should be stored in tightly closed compatible containers with ventilation, secondary containment, restricted access and SDS-based segregation from incompatible materials.
UN 2671 Quick Details
Common Hazards of UN 2671
- TOXIC aminopyridine isomer group; inhalation, ingestion or skin absorption may cause severe injury.
- Skin contact and contaminated clothing can extend exposure.
- Combustible solid: may burn but does not ignite readily.
- Molten material, if present, can cause thermal and toxic contact exposure.
- Fire may produce nitrogen oxides and toxic pyridine/amine smoke.
- Runoff may carry toxic amine contamination.
- Exact isomer and physical state should be verified from SDS.
Chemical Identity & Physical Properties
White to light tan crystalline solid or powder with a characteristic amine-like odor. May be shipped as molten liquid.
| Also known as | AminopyridinesPyridine aminesPyridinamine isomers2-Aminopyridine3-Aminopyridine4-Aminopyridine |
| Appearance | White to light tan crystalline solid or powder with a characteristic amine-like odor. May be shipped as molten liquid. |
| Flash Point | Not applicable (solid) |
| Boiling Point | 204-273C (399-523F) depending on isomer |
| Vapor Density | Not applicable (solid at room temperature) |
| Water Reactivity | No significant reaction; soluble in water |
Fireground Response Guidance — UN 2671
Extinguishing Media
PPE Requirements
Use positive-pressure SCBA for dust, vapor, mist, fire or confined-space exposure. Wear chemical-resistant gloves, boots, eye/face protection and protective clothing.
Isolation & Evacuation
First Actions for a UN 2671 Incident
- Call 911 and the emergency response number on the shipping paper, if available.
- Keep unauthorized personnel away and establish incident command.
- Stay upwind, uphill and upstream.
- Avoid breathing vapor, dust, mist, smoke or fumes and avoid skin or eye contact.
- Do not touch damaged containers or spilled material without proper training and PPE.
- Prevent contaminated liquid, dust, runoff and decontamination waste from spreading.
- Ventilate confined spaces only after monitoring and only if properly trained and equipped.
- Use ERG Guide 153, SDS, shipping papers and monitoring to set isolation, evacuation and entry decisions.
📋 Copy & Share Field Card
UN 2671 — AminopyridinesUse for: Quick radio or face-to-face size-up. Short, structured, field-ready.
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
Use for: Quick text to command or incoming units. Fits in a single SMS.