32674-72-9 4-(p-Methoxy-p-methylphosphinyl)-3-oxo-2,2,4-trimethylvaleric acid methyl ester BRN 2278736 Methyl 4-((methoxy)methylphosphinyl)-2,2,4-trimethyl-3-oxovalerate NSC 131283 Pentanoic acid, 4-(methoxymethylphosphinyl)-2,2,4-trimethyl-3-oxo-, methyl ester (9CI) Valeric acid, 4-(p-methoxy-p-methylphosphinyl)-3-oxo-2,2,4-trimethyl-, methyl ester