Dyes, liquid, toxic, n.o.s. or Dye intermediates, liquid, toxic, n.o.s.
HMT 15 June 2026- UN / ID
- UN 1602
- Hazard class
- 6.1
- Packing group
- I (multiple — see tabs)
- ERG guide
- ERG 151
- Special provisions
- —
- Source
- 49 CFR §172 (15 June 2026)
Dyes, liquid, toxic, n.o.s. or Dye intermediates, liquid, toxic, n.o.s.
A dye is a colored substance that is soluble in some solvent; by contrast pigments are insoluble or nearly so in all solvents. Because of their solubility, dyes can chemically bind to the material they color. Dye is generally applied in an aqueous solution and may require a mordant to improve the fastness of the dye on the fiber. The majority of natural dyes are derived from non-animal sources such as roots, berries, bark, leaves, wood, fungi and lichens Wikipedia
| Emergency Response Guide No. 151 |
Hazardous Materials Table
Source: 49 CFR §172 (15 June 2026)(3) Hazard class6.1Poisonous Material |
(4) Identification number |
(5) Packing Group |
||||||||
(6) Labels |
||||||||||
(1) Symbols |
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| — |
|---|
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | None | |
|---|---|---|
| (8B) Non-bulk | 201 | see 49 CFR §173.201 |
| (8C) Bulk | 243 | see 49 CFR §173.243 |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | 1 L |
|---|---|
| (9B) Cargo aircraft only | 30 L |
(10) Vessel stowage 
| (10A) Location | |
|---|---|
| (10B) Other | — |
(3) Hazard class6.1Poisonous Material |
(4) Identification number |
(5) Packing Group |
|||||||||
(6) Labels |
|||||||||||
(1) Symbols |
|||||||||||
| IB2 |
|---|
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | 153 | see 49 CFR §173.153 |
|---|---|---|
| (8B) Non-bulk | 202 | see 49 CFR §173.202 |
| (8C) Bulk | 243 | see 49 CFR §173.243 |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | 5 L |
|---|---|
| (9B) Cargo aircraft only | 60 L |
(10) Vessel stowage 
| (10A) Location | |
|---|---|
| (10B) Other | — |
(3) Hazard class6.1Poisonous Material |
(4) Identification number |
(5) Packing Group |
|||||||||
(6) Labels |
|||||||||||
(1) Symbols |
|||||||||||
| IB3 |
|---|
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | 153 | see 49 CFR §173.153 |
|---|---|---|
| (8B) Non-bulk | 203 | see 49 CFR §173.203 |
| (8C) Bulk | 241 | see 49 CFR §173.241 |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | 60 L |
|---|---|
| (9B) Cargo aircraft only | 220 L |
(10) Vessel stowage 
| (10A) Location | |
|---|---|
| (10B) Other | — |
Packing group comparison
Multiple packing groups apply to this entry. See assignment criteria in 49 CFR §173 Subpart D. Details are in the tabs above; differences are highlighted.
| PG I | PG II | PG III | |
|---|---|---|---|
| 1 | G | G | G |
| 2 | Dyes, liquid, toxic, n.o.s. or Dye intermediates, liquid, toxic, n.o.s. | Dyes, liquid, toxic, n.o.s. or Dye intermediates, liquid, toxic, n.o.s. | Dyes, liquid, toxic, n.o.s. or Dye intermediates, liquid, toxic, n.o.s. |
| 3 | 6.1 | 6.1 | 6.1 |
| 4 | UN 1602 | UN 1602 | UN 1602 |
| 5 | I | II | III |
| 6 | 6.1 | 6.1 | 6.1 |
| 7 | — | IB2 | IB3 |
| 8A | None | 153 | 153 |
| 8B | 201 | 202 | 203 |
| 8C | 243 | 243 | 241 |
| 9A | 1 L | 5 L | 60 L |
| 9B | 30 L | 60 L | 220 L |
| 10A | A | A | A |
| 10B | — | — | — |
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