§ 721.10272 3′H-Cyclopropa[8,25][5,6]fullerene-C70-D5h(6)-3′-butanoic acid, 3′-phenyl-,methyl ester.

(a) Chemical substance and significant new uses subject to reporting. (1) The chemical substances identified as 3′H-Cyclopropa[8,25][5,6]fullerene-C70-D5h(6)-3′-butanoic acid, 3′-phenyl-, methyl ester (PMNs P-09-143 and Chemical B in P-09-416, CAS Number 609771-63-3) is subject to reporting under this section for the significant new uses described in paragraph (a)(2) of this section. The requirements of this rule do not apply to quantities of the PMN substances after they have been completely reacted (cured); embedded or incorporated into a polymer matrix that itself has been reacted (cured); or embedded in a permanent solid polymer form that is not intended to undergo further processing, except for mechanical processing.