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§ 721.2725 Trichlorobutylene oxide.
(a) Chemical substance and significant new use subject to reporting. (1) The chemical substance trichlorobutylene oxide (TCBO), CAS Number 3083–25–8, [Listed in TSCA Inventory as oxirane, (2,2,2-trichloroethyl)-] is subject to reporting under this section for the significant new use described in paragraph (a)(2) of this section.