UN 2056

UN 2056 is the transport identification number used for Tetrahydrofuran in our database. It appears in Section 14 of the SDS, on shipping papers and on hazmat placards and labels.

Proper shipping name

• UN 2056; Tetrahydrofuran[United Nations; Recommendations on the Transport of Dangerous Goods. Model Regulations. Vol. I, 16th Revised Edition (2009). Available from, as of November 22, 2010: http://www.unece.org/trans/danger/publi/unrec/rev16/16files_e.html]

DOT hazard classification

• Tetrahydrofuran
• UN2056
• Class 3 Flammable and combustible liquid (49 eCFR § 173.120)

Emergency Response Guidebook

• 2056 127

Transport data from NOAA CAMEO Chemicals, HSDB and other sources via PubChem. Always confirm against 49 CFR 172.101 and the current ERG.