HazMat Tool — substance information Reference only — not a shipping paper, placard mandate, or CVI record.

Ethers, n.o.s.

HMT 15 June 2026
Reference only — HMT snapshot for inspection and audit support; not a shipping paper, placard mandate, or CVI record. Use Print / PDF below for field notes.
UN / ID
UN 3271
Hazard class
3
Packing group
II (multiple — see tabs)
ERG guide
ERG 127
Special provisions
SP IB2, SP T7, SP TP1, SP TP8, SP TP28
Source
49 CFR §172 (15 June 2026)

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Ethers, n.o.s.


In organic chemistry, ethers are a class of compounds that contain an ether group, a single oxygen atom bonded to two separate carbon atoms, each part of an organyl group (e.g., alkyl or aryl). They have the general formula R−O−R′, where R and R′ represent the organyl groups. Ethers can again be classified into two varieties: if the organyl groups are the same on both sides of the oxygen atom, then it is a simple or symmetrical ether, whereas if they are different, the ethers are called mixed or unsymmetrical ethers. A typical example of the first group is the solvent and anaesthetic diethyl ether, commonly referred to simply as "ether" (CH3−CH2−O−CH2−CH3) Wikipedia

Emergency Response Guide No. 127

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

(3) Hazard class

3
Flammable liquids

(4) Identification number Help

UN 3271

(5) Packing Group Help

II

(6) Labels Help

Flammable liquids (3)

(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.
IB2
T7
TP1
TP8
TP28

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

(8A) Exceptions150see 49 CFR §173.150
(8B) Non-bulk202see 49 CFR §173.202
(8C) Bulk242see 49 CFR §173.242

(9) Quantity Limits Help

(9A) Passenger aircraft/rail5 L
(9B) Cargo aircraft only60 L

(10) Vessel stowage Help

(10A) Location
(10B) Other—

(3) Hazard class

3
Flammable liquids

(4) Identification number Help

UN 3271

(5) Packing Group Help

III

(6) Labels Help

Flammable liquids (3)

(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.
B1
IB3
T4
TP1
TP29

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

(8A) Exceptions150see 49 CFR §173.150
(8B) Non-bulk203see 49 CFR §173.203
(8C) Bulk242see 49 CFR §173.242

(9) Quantity Limits Help

(9A) Passenger aircraft/rail60 L
(9B) Cargo aircraft only220 L

(10) Vessel stowage Help

(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 II PG III
1
2Ethers, n.o.s.Ethers, n.o.s.
333
4UN 3271UN 3271
5IIIII
633
7IB2, T7, TP1, TP8, TP28B1, IB3, T4, TP1, TP29
8A150150
8B202203
8C242242
9A5 L60 L
9B60 L220 L
10ABA
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.

Prohibited Must not be loaded, transported, or stored together in the same vehicle or facility.
Permitted May be loaded, transported, or stored together.
Restricted May be loaded, transported, or stored together only with restrictions.

Similar substances

UN / IDProper shipping nameHazard class
UN 1149Dibutyl ethers3