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§ 721.10203 Phosphonium, tetrabutyl-, hydroxide (1:1).
(a) Chemical substance and significant new uses subject to reporting. (1) The chemical substance identified as phosphonium, tetrabutyl-, hydroxide (1:1) (PMN P-08-742; CAS No. 14518-69-5) is subject to reporting under this section for the significant new uses described in paragraph (a)(2) of this section.