TARIC 2920.90.70.70 — 4,4,5,5-Tetramethyl-1,3,2-dioxaborolane (CAS RN 25015-63-8) with a purity by weight of 97 % or more, containing not more than 1 % of the stabiliser triethylamine (CAS RN 121-44-8) | TariffCodex