CAS 174063-87-7
RM257 (also written RM 257 or RM-257) is a C3-spacer mesogenic diacrylate: a difunctional reactive mesogen and liquid crystal monomer. Palica supplies RM257 for polymer-network liquid crystals, aligned liquid-crystal networks and UV-curable research formulations.
≥97.0% purity by HPLC · White powder
Chemical name: 2-Methyl-1,4-phenylene bis(4-(3-(acryloyloxy)propoxy)benzoate)
Literature name: 1,4-Bis-[4-(3-acryloyloxypropyloxy)benzoyloxy]-2-methylbenzene
Flexible packaging is available for laboratory and pilot quantities. Send the required quantity, delivery country, packaging preference and document needs; we will confirm price, availability, lead time and available batch documentation.
Use the structural comparison below to shortlist a product, then validate it in the complete formulation.
| Attribute | RM257 | RM82 |
|---|---|---|
| Spacer | C3 | C6 |
| Functionality | Difunctional diacrylate | Difunctional diacrylate |
| Common evaluation areas | PNLCs, aligned LC networks, UV-curable formulations | LCEs, 4D-printed actuators, liquid-crystalline vitrimers |
These products are not drop-in substitutes.
RM257 is commonly evaluated as a difunctional crosslinker in liquid-crystal formulations where alignment and cure response must be controlled together.
Formulation fit depends on the co-monomers, alignment route, initiator system and cure conditions. Validate phase behaviour, alignment and final network response in the complete formulation.
For practical formulation considerations, see alignment, oxygen inhibition and cure-window control.
Patent notice: Synthesis or use may be covered by third-party patent rights in some jurisdictions or applications. Supply does not include a patent licence; customers should assess freedom to operate for their intended use.
Chemical identity reference: PubChem.
Tell us the quantity and delivery country if known. We will reply by email with pricing and supply options, and confirm any requested documents.