HazMat Tool — substance information
Reference only — not a shipping paper, placard mandate, or CVI record.
Ethyl methyl ether
HMT 15 June 2026- UN / ID
- UN 1039
- Hazard class
- 2.1
- Packing group
- — (multiple — see tabs)
- ERG guide
- ERG 115
- Special provisions
- —
- Source
- 49 CFR §172 (15 June 2026)
Ethyl methyl ether
Methoxyethane, also known as ethyl methyl ether, is a colorless gaseous ether with the formula CH3OCH2CH3. Unlike the related dimethyl ether and diethyl ether, which are widely used and studied, this mixed alkyl ether has no current applications. It is a structural isomer of isopropyl alcohol. Its utility as an anesthetic and solvent have been investigated Wikipedia
Substance Data
Source: PubChem (HSDB, 04.12.2019)CAS-Number540-67-0 |
Flash Point— | Boiling Point— |
| Emergency Response Guide No. 115 |
Hazardous Materials Table
Source: 49 CFR §172 (15 June 2026)(3) Hazard class2.1Flammable gases |
(4) Identification number |
(5) Packing Group |
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(6) Labels |
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(7) Special Provisions (§172.102)
|
||||||||||
| — |
|---|
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | None | |
|---|---|---|
| (8B) Non-bulk | 201 | see 49 CFR §173.201 |
| (8C) Bulk | 314, 315 | see 49 CFR §173.314, 315 |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | Forbidden |
|---|---|
| (9B) Cargo aircraft only | 150 kg |
(10) Vessel stowage 
| (10A) Location | |
|---|---|
| (10B) Other |