The present invention relates to an agrochemical composition comprising a pesticide and an alkoxylate of the formula (I) R1-[AO]n—O—C(R3)(R4)—O—[CH2—CH2—O]m—R2  (I) where R1 is a C6-C32 aliphatic hydrocarbon group, R2 is a C1-C18 aliphatic hydrocarbon group, R3 and R4 are independently from another H or C1-C12 aliphatic hydrocarbon groups, AO is C2-C6 alkyleneoxy group, n is from 1 to 100, and m is from 0 to 10. The invention further relates to the alkoxylate. The invention further relates to a method of preparing the composition by bringing the alkoxylate and the pesticide into contact. Finally, the invention relates to a method of controlling phytopathogenic fungi and/or undesired plant growth and/or undesired insect or mite attack and/or for regulating the growth of plants.