UN 2055

UN 2055 is the transport identification number used for Styrene in our database. It appears in Section 14 of the SDS, on shipping papers and on hazmat placards and labels.

Proper shipping name

• UN 2055; Styrene monomer, stabilized

DOT hazard classification

• Styrene monomer, stabilized
• UN2055
• Class 3 Flammable and combustible liquid (49 eCFR § 173.120)

Emergency Response Guidebook

• 2055 128P
• 2055 128P(inhibited)

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