Citrate-based plasticizer composition and resin composition comprising the same

A citrate-based plasticizer composition comprising a citrate-based composition comprising one or more citrates of the following Formula 1:

• wherein in Formula 1, R1 to R3 are each independently an n-hexyl group, a branched hexyl group or a cyclopentylmethyl group, and R4 is hydrogen or an acetyl group,
• wherein an alkyl group of the citrate is derived from an isomer mixture of hexyl alcohol having a degree of branching of 0.1 to 1.5,
• wherein the isomer mixture of hexyl alcohol comprises 1-hexanol, 2-methylpentanol and 3-methylpentanol,
• wherein the isomer mixture of hexyl alcohol comprises 40 parts by weight or less of 1-hexanol with respect to 100 parts by weight of the isomer mixture, and
• wherein the isomer mixture of hexyl alcohol comprises 40 parts by weight or more of a branched alcohol with respect to 100 parts by weight of the isomer mixture.