40348-72-9 EINECS 254-883-4 FEMA No. 3706 Methyl 2-hydroxy-4-methylpentanoate Methyl 2-hydroxy-4-methylvalerate Methyl 2-hydroxyisocaproate Pentanoic acid, 2-hydroxy-4-methyl-, methyl ester Valeric acid, 2-hydroxy-4-methyl-, methyl ester