SINOMER® 2-OA (2-Octyl Acrylate, CAS 42928-85-8) is a bio-based monofunctional acrylate monomer with a branched C8 alkyl structure. It is derived from renewable feedstocks (2-octanol from castor oil) and contains approximately 70% bio-based carbon content. The monomer offers low viscosity, low odor, and low skin irritation, making it suitable for coatings, adhesives, sealants, and UV/EB curing systems.
SINOMER® 2-OA
(Bio-Based Monofunctional Acrylate Monomer – Low Odor, Low Skin Irritation)
Chemical Name: 2-Octyl acrylate;1-methylheptyl acrylate
CAS No.: 42928-85-8
MF: C11H20O2
MW: 184.28
Molecular structure:

SINOMER® 2-OA (2-Octyl Acrylate, CAS 42928-85-8) is a bio-based monofunctional acrylate monomer with a branched C8 alkyl structure. It is derived from renewable feedstocks (2-octanol from castor oil) and contains approximately 70% bio-based carbon content. The monomer offers low viscosity, low odor, and low skin irritation, making it suitable for coatings, adhesives, sealants, and UV/EB curing systems.
Appearance | Clear, colorless to light yellow liquid |
Color (APHA) | ≤ 20 |
Assay (Purity) | ≥ 99.0% |
Water Content | ≤ 0.05% |
Acidity (as methacrylic acid) | ≤ 0.03% |
Bio-based – approximately 70% bio-based carbon content, supporting sustainable formulation goals
Low skin irritation – milder dermal irritation profile compared to many conventional acrylates
Low odor – improved workplace comfort during handling and application
Low viscosity – excellent reactive diluent for UV/EB curing systems
Good flexibility – imparts flexibility and toughness to cured films
Good hydrophobicity – enhances water resistance in coatings and adhesives
Coatings – wood coatings, plastic coatings, metal coatings
Adhesives – pressure-sensitive adhesives, laminating adhesives
Sealants
UV/EB curable inks – flexo, screen, and inkjet inks
25kg,200kgs/drum.
Being kept in dry, clean warehouse with well ventilation.
Avoid exposing to light and heating.
Protecting the product from leakage, rain and insolation during transportation.
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Provide formulation optimization support for water-based/solvent-based systems
Full coverage of REACH, FDA, and GB standards
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