Tri-sec-butylborane

Tri-sec-butylborane (CAS 1113-78-6, EC 214-209-1, formula C12H27B) is a trialkylborane compound also referred to as Tri-sec-butyl, Tri-sec-butylboron, Tris(sec-butyl)borane, and Tris(2-butyl)borane. It carries no assigned E-code and belongs to the organometallic compounds category.

In polymer chemistry, tri-sec-butylborane functions as a radical polymerization initiator, generating reactive boron-centered radicals that trigger chain growth under ambient or low-temperature conditions. In pharmaceutical synthesis and biotechnology workflows, it serves as a Lewis acid catalyst, activating electrophilic intermediates and enabling selective carbon-carbon bond-forming reactions.

Tri-sec-butylborane is supplied for industrial and research applications and falls under HS code 29319090 for customs classification. As an organoboron compound, it is subject to REACH registration requirements within the European Economic Area. Procurement teams should confirm available pack sizes, concentration, and storage specifications directly with the supplier.