Cocrystals of ubiquinone and compositions comprising them

A cocrystal of ubiquinone and a phenolic compound, wherein the phenolic compound is:

• 1) 4-hydroxybenzoic acid, and which is characterized by having an X-ray powder diffractogram that comprises characteristic peaks at 1.4 and 2.8±0.3 degrees 2 theta with Cu—Kα radiation, λ=1.5418 Å;
• 2) hydroquinone, and which is characterized by having an X-ray powder diffractogram that comprises characteristic peaks at 1.5 and 3.0±0.3 degrees 2 theta with Cu—Kα radiation, λ=1.5418 Å;
• 3) hydroquinone and which is in the form of a benzyl alcohol solvate, characterized by having an X-ray powder diffractogram that comprises characteristic peaks at 1.4, 2.9±0.3 degrees 2 theta with Cu—Kα radiation, λ=1.5418 Å;
• 4) orcinol, and which is characterized by having an X-ray powder diffractogram that comprises characteristic peaks at 1.5, 3.1±0.3 degrees 2 theta with Cu—Kα radiation, λ=1.5418 Å;
• 5) Orcinol, and which is in the form of a benzyl alcohol solvate, characterized by having an X-ray powder diffractogram that comprises characteristic peaks at 12.9, 13.6±0.3 degrees 2 theta with Cu—Kα radiation, λ=1.5418 Å;
• 6) phloroglucinol, and which is characterized by having an X-ray powder diffractogram that comprises characteristic peaks at 1.5, 3.0±0.3 degrees 2 theta with Cu—Kα radiation, λ=1.5418 Å;
• 7) resorcinol, and which is characterized by having an X-ray powder diffractogram that comprises characteristic peaks at 1.5, 3.0±0.3 degrees 2 theta with Cu—Kα radiation, λ=1.5418 Å;
• or
• 8) 2,4-dihydroxybenzoic acid, and which is characterized by having an X-ray powder diffractogram that comprises characteristic peaks at approximately 1.4 and 18.7±0.3 degrees 2 theta with Cu—Kα radiation, λ=1.5418 Å.