Tris, bis-bifluoroamino diethoxy propane (TVOPA)

Tris, or tris(hydroxymethyl)aminomethane, or known during medical use as tromethamine or THAM, is an organic compound with the formula (HOCH2)3CNH2. It is extensively used in biochemistry and molecular biology as a component of buffer solutions such as in TAE and TBE buffers, especially for solutions of nucleic acids. It contains a primary amine and thus undergoes the reactions associated with typical amines, e.g. condensations with aldehydes. Wikipedia

Data from the Hazardous Materials Table

Source: 49 CFR §172 (2018/07)

(3) Hazard Class

(4) Identification number Help


(5) Packing Group Help


(6) Labels Help


(7) Special Provisions (§172.102) Help

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

(8A) Exceptions n/asee 49 CFR §173. n/a
(8B) Non-bulk n/asee 49 CFR §173. n/a
(8C) Bulk n/asee 49 CFR §173. n/a

(9) Quantity Limits Help

(9A) Passenger aircraft/rail n/a
(9B) Cargo aircraft only n/a

(10) Vessel stowage Help

(10A) Location
(10B) Other n/a

Segregation Chart for Load, Transport, Storage

In this table a statement is contained for each hazard class whether the loading, transport or storage with other hazard classes is allowed, is not permitted or is restricted. The table is based on U.S.-Code 49 CFR §177.848.