Pentaerythritol tetramethacrylate

季戊四醇四甲基丙烯酸酯

Also known as: Pentaerythritol tetramethylacrylate, [3-(2-methylprop-2-enoyloxy)-2,2-bis(2-methylprop-2-enoyloxymethyl)propyl] 2-methylprop-2-enoate, 2,2-Bis(((2-methyl-1-oxoallyl)oxy)methyl)-1,3-propanediyl bismethacrylate, 3-(Methacryloyloxy)-2,2-bis[(methacryloyloxy)methyl]propyl methacrylate, EINECS 221-847-4, PETTMA

Pentaerythritol tetramethacrylate (CAS 118541-94-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C21H28O8 and a molecular weight of 408.44200 g/mol. It is also known as Pentaerythritol tetramethylacrylate, [3-(2-methylprop-2-enoyloxy)-2,2-bis(2-methylprop-2-enoyloxymethyl)propyl] 2-methylprop-2-enoate and 2,2-Bis(((2-methyl-1-oxoallyl)oxy)methyl)-1,3-propanediyl bismethacrylate. Key properties include a boiling point of 497.9ºC at 760mmHg, a density of 1.107g/cm3 and a flash point of 213.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

118541-94-9

Jingsj CID

J-1508612-3

Molecular Formula

C₂₁H₂₈O₈

Chinese Name

季戊四醇四甲基丙烯酸酯

Molecular Weight

408.44200 g/mol

Category

Organic Acids

Last updated

8/21/2026