Pentaerythritol tetrakis(3-mercaptopropionate) is an organic compound which is derived from pentaerythritol fully esterified with four equivalents of 3-mercaptopropionic acid.

It is a colorless liquid at room temperature.

[1] Pentaerythritol tetrakis(3-mercaptopropionate) is a common thiol monomer reacted with alkenes in the thiol-ene reaction to form polymeric networks.

[3] Being functionalized with four thiol groups, it can react with multifunctional alkenes to form thiol-ene networks.

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