Biodiesel is considered as a potential candidate to replace petrodiesel. The complex reaction scheme of actual biodiesel fuel oxidation could be simplified using surrogate formulations with suitable representative fuels. A chemical kinetic mechanism is developed considering n-dodecane (n-C12H26), methyl butanoate (CH3CH2CH2C(=O)OCH3) and methyl crotonate (CH3CH=CHC(=O)OCH3) as components of biodiesel surrogate. Starting with a detailed kinetic model for methyl butanoate and n-dodecane, revisions are introduced to the C0-C4 chemistry based on the recent AramcoMech, and the resulting mechanism is combined with a short model for methyl crotonate, derived from a suitable reference mechanism. The results for high temperature ignition of n-dodecane and methyl butanoate in the combined mechanism show good agreement with the experimental datasets. The combined mechanism is then validated for ignition delays of methyl crotonate at high temperatures in a shock tube for a wide range of equivalence ratios. Laminar flame speeds of methyl crotonate are compared with the experimental data. The present work will progress towards developing low temperature chemistry for methyl crotonate and defining a surrogate for actual biodiesel. © Asia-Pacific Conference on Combustion, ASPACC 2019.All right reserved.