UN 2927Toxic liquid, corrosive, organic, n.o.s. or Toxic liquid, corrosive, organic, n.o.s. Inhalation Hazard, Packing Group I, Zone A or B
Proper shipping name: Toxic liquids, corrosive, organic, n.o.s.
Division 6.1
Toxic substances
Summary
UN 2927 is the UN number for toxic liquid, corrosive, organic, n.o.s. or Toxic liquid, corrosive, organic, n.o.s. Inhalation Hazard, Packing Group I, Zone A or B. It is classed in Division 6.1 (toxic substances) of Class 6 for transport. Packing group I or II, depending on the form. Emergency responders use ERG guide 154.
Emergency response
The Emergency Response Guidebook (ERG2024) guide for this number:
- Guide154Ethyl phosphonothioic dichloride, anhydrousEthyl phosphorodichloridatePoisonous liquid, corrosive, organic, n.o.s.Toxic liquid, corrosive, organic, n.o.s.Highlighted in green: see Table 1
Highlighted in green in the ERG. If there is no fire, go to ERG Table 1 for initial isolation and protective action distances, and also use the guide. If a fire is involved, use the guide's evacuation distances and protect downwind according to Table 1.
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 2927
- Name
- Toxic liquid, corrosive, organic, n.o.s. or Toxic liquid, corrosive, organic, n.o.s. Inhalation Hazard, Packing Group I, Zone A or B
- Hazard class
- Class 6: Toxic and infectious substances
- Division
- 6.1: Toxic substances
- Packing group
- I, 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
4 entries share this number in 49 CFR 172.101, by name, packing group or where the shipment is going.
UN2927Toxic liquids, corrosive, organic, n.o.s.
- Technical name required in parentheses
Special provisions: T14, TP2, TP13, TP27
- Class
- 6.1
- Packing group
- I
- Labels
- 6.1, 8
UN2927Toxic liquids, corrosive, organic, n.o.s.
- Technical name required in parentheses
Special provisions: IB2, T11, TP2, TP27
- Class
- 6.1
- Packing group
- II
- Labels
- 6.1, 8
NA2927Ethyl phosphonothioic dichloride, anhydrous
- U.S. domestic shipments only
Special provisions: 2, B9, B14, B32, T20, TP4, TP12, TP13, TP38, TP45
- Class
- 6.1
- Packing group
- I
- Labels
- 6.1, 8
NA2927Ethyl phosphorodichloridate
- U.S. domestic shipments only
Special provisions: 2, B9, B14, B32, T20, TP4, TP12, TP13, TP38, TP45
- Class
- 6.1
- Packing group
- I
- Labels
- 6.1, 8
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.
Check the official sources
For emergency response, packaging and quantity limits, use these:
- CAMEO Chemicals: UN/NA 2927NOAA datasheets with the ERG response guide and isolation distances
- Emergency Response Guidebook (ERG)PHMSA's guide for first responders, free as a PDF or app
- 49 CFR 172.101 Hazardous Materials TableThe legal U.S. entry: proper shipping name, packing group, labels and special provisions