Propane tricarboxylate-based plasticizer composition and resin composition including the same

A tricarboxylate-based plasticizer composition comprising a propane tricarboxylate-based composition comprising at least one propane tricarboxylate of Formula 1,

• wherein in Formula 1,
• R1 to R3 are each independently an alkyl group of an n-hexyl group, a branched hexyl group, or a cyclopentylmethyl group,
• the alkyl group of the propane tricarboxylate is derived from an isomer mixture of hexyl alcohol, and
• the isomer mixture of hexyl alcohol comprises two or more selected from the group consisting of 1-hexanol, 1-methylpentanol, 2-methylpentapol, 3-methylpentanol, 4-methylpentanol, 1,1-dimethylbutanol, 1,2-dimethylbutanol, 1,3-dimethylbutanol 2,2-dimethylbutanol, 2,3-dimethylbutanol, 3,3-dimethylbutanol, 1-ethylbutanol, 2-ethylbutanol, 3-ethylbutanol, and cyclopentylmethanol.