HazMat Tool — substance information

4,4′-Diaminodiphenyl methane

HMT May 2026
UN / ID
UN 2651
Hazard class
6.1
Packing group
III
ERG guide
ERG 153
Special provisions
SP IB8, SP IP3, SP T1, SP TP33
Source
49 CFR §172 (2026/05)

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4,4′-Diaminodiphenyl methane

Emergency Response Guide No. 153

Hazardous Materials Table

Source: 49 CFR §172 (2026/05)

(3) Hazard Class

6.1
Poisonous Material

(4) Identification number Help

UN 2651

(5) Packing Group Help

III

(6) Labels Help

Poisonous liquids PG I Zone A (6.1)

(7) Special Provisions (§172.102) Help

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.
IB8
IP3
T1
TP33

(8) Packing Authorizations (§173.***) Help

(8A) Exceptions153see 49 CFR §173.153
(8B) Non-bulk213see 49 CFR §173.213
(8C) Bulk240see 49 CFR §173.240

(9) Quantity Limits Help

(9A) Passenger aircraft/rail100 kg
(9B) Cargo aircraft only200 kg

(10) Vessel stowage Help

(10A) Location
(10B) Other n/a

Segregation chart for load, transport, and storage

This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.

Scope & sources (important)Click to show CFR references

This check evaluates segregation per 49 CFR §177.848. Additional loading/unloading and handling requirements may still apply; see 49 CFR §177 Subpart B (Loading and Unloading):

  • §177.834 - General requirements
  • §177.835 - Class 1 materials
  • §177.837 - Class 3 materials
  • §177.838 - Class 4 (flammable solid) materials, Class 5 (oxidizing) materials, and Division 4.2 (pyroforic liquid) materials
  • §177.839 - Class 8 (corrosive) materials
  • §177.840 - Class 2 (gases) materials
  • §177.841 - Division 6.1 and Division 2.3 materials
  • §177.842 - Class 7 (radioactive) material
  • §177.843 - Contamination of vehicles

Similar substances

UN / IDProper shipping nameHazard class
UN 1973Chlorodifluoromethane and chloropentafluoroethane mixture or Refrigerant gas R 502 with fixed boiling point, with approximately 49 percent chlorodifluoromethane2.2
UN 2599Chlorotrifluoromethane and trifluoromethane azeotropic mixture or Refrigerant gas R 503 with approximately 60 percent chlorotrifluoromethane2.2
UN 2602Dichlorodifluoromethane and difluoroethane azeotropic mixture or Refrigerant gas R 500 with approximately 74 percent dichlorodifluoromethane2.2
UN 1972Methane, refrigerated liquid (cryogenic liquid) or Natural gas, refrigerated liquid (cryogenic liquid, with high methane content)2.1
UN 3070Ethylene oxide and dichlorodifluoromethane mixture, with not more than 12.5 percent ethylene oxide2.2
UN 3151Polyhalogenated biphenyls, liquid or Halogenated monomethyldiphenyl-methanes, liquid or Polyhalogenated terphenyls, liquid9
UN 3152Polyhalogenated biphenyls, solid or Halogenated monomethyldiphenyl-methanes, solid or Polyhalogenated terphenyls, solid9
UN 1971Methane, compressed or Natural gas, compressed (with high methane content)2.1
UN 1009Bromotrifluoromethane or Refrigerant gas, R 13B1.2.2
UN 1974Chlorodifluorobromomethane or Refrigerant gas R 12B12.2
UN 1018Chlorodifluoromethane or Refrigerant gas R 222.2
UN 1022Chlorotrifluoromethane or Refrigerant gas R 132.2
UN 1028Dichlorodifluoromethane or Refrigerant gas R 122.2
UN 3252Difluoromethane or Refrigerant gas R 322.1
UN 1982Tetrafluoromethane or Refrigerant gas R 142.2