HazMat Tool — substance information
2-Chloropropene
HMT 15 June 2026- UN / ID
- UN 2456
- Hazard class
- 3
- Packing group
- I
- ERG guide
- ERG 130P
- Special provisions
- SP N36, SP T11, SP TP2
- Source
- 49 CFR §172 (15 June 2026)
2-Chloropropene
2-Chloropropylene is an organochlorine compound with the formula CH2=C(Cl)CH3. It is a colorless gas that condenses just below room temperature. Unlike the closely related vinyl chloride, which is a major industrial chemical, 2-chloropropene has no commercial applications and is a lightly studied compound. In the research laboratory, it is used as a source of the 2-propenyl group Wikipedia
Substance Data
Source: PubChem (HSDB, 26.11.2019)CAS-Number557-98-2 |
Flash Pointn/a | Boiling Pointn/a |
| Emergency Response Guide No. 130P |
Hazardous Materials Table
Source: 49 CFR §172 (15 June 2026)(3) Hazard Class3Flammable liquids |
(4) Identification number |
(5) Packing Group |
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(6) Labels |
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(7) Special Provisions (§172.102)
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| N36 | |
|---|---|
| T11 | |
| TP2 |
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | 150 | see 49 CFR §173.150 |
|---|---|---|
| (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 | 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.
| Hazard class | 8![]() | 7![]() | 6.1![]() | 5.2![]() | 5.1![]() | 4.3![]() | 4.2![]() | 4.1![]() | 3![]() | 2.3B![]() | 2.3A![]() | 2.2![]() | 2.1![]() | 1.6![]() | 1.5![]() | 1.4![]() | 1.3![]() | 1.1/1.2![]() |
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2.1 ![]() | ||||||||||||||||||
2.2 ![]() | ||||||||||||||||||
2.3A ![]() | ||||||||||||||||||
2.3B ![]() | ||||||||||||||||||
3 ![]() | ||||||||||||||||||
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5.1 ![]() | ||||||||||||||||||
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6.1 ![]() | ||||||||||||||||||
7 ![]() | ||||||||||||||||||
8 ![]() |
| Must not be loaded, transported, or stored together in the same vehicle or facility. | |
| May be loaded, transported, or stored together. | |
| May be loaded, transported, or stored together only with restrictions. |

