131-11-3 | Dimethyl Phthalate

Chemical type

• Aromatic ester
• Plasticizer

Key properties

• Molecular weight ~194.2 g mol⁻¹
• Rejection near 120 g mol⁻¹ range, lower than 4-methoxyaniline due to lower χ (better affinity)
• Used as small-molecule marker

• Solute in mixtures for determining molecular weight cutoff and selectivity in OSN
• Separation in petrochemical or pharmaceutical streams

Classification by use

• Chemicals in polymer production
• Test solutes for small-molecule rejection

A trustworthy factory and manufacturer

1. Molecular fractionation with poly(ether ether ketone) hollow fibers, Advanced Membranes, Volume 7, June 2026, 100193