§ 721.1925 Substituted carboheterocyclic butane tetracarboxylate (generic).

(a) Chemical substance and significant new uses subject to reporting. (1) The chemical substance identified generically as substituted carboheterocyclic butane tetracarboxylate (PMNs P-90-440 and P-95-4) is subject to reporting under this section for the significant new uses described in paragraph (a)(2) of this section. The requirements of this section do not apply when particle sizes of the chemical substance is greater than 250 microns.