1,1-bis(acryloyloxymethyl)ethyl isocyanate
CAS: 886577-76-0
Category: Organic Intermediates
| Purity | Research Grade ≥95% (with inhibitor, e.g., 100–500 ppm BHT), High-Purity Grade ≥97% (with inhibitor) |
| Molecular Formula | C₁₁H₁₃NO₅ |
| Molecular Weight | 239.23 |
| Appearance | Colorless to pale yellow clear liquid |
| Packaging | 5g/10g/25g/100g/500g/glass bottle or aluminum bottle (PTFE-lined cap); 1kg/5kg/25kg/PTFE-lined steel drum or HDPE drum; packaged under inert atmosphere (nitrogen or argon) |
| Testing Indicators | Appearance — Visual inspection; Identification — FTIR (characteristic N=C=O stretch ~2260–2270 cm⁻¹, acrylate C=C stretch ~1635 cm⁻¹, ester C=O stretch ~1720–1735 cm⁻¹), ¹H NMR, or ¹³C NMR; Purity — HPLC (C18 column, UV detection at 210–254 nm) or GC-FID; Isocyanate content — Titration (dibutylamine back-titration method); Acrylate content — Iodometric titration or GC; Water content — Karl Fischer titration; Inhibitor content (BHT, MEHQ) — HPLC; Color — APHA color scale; Viscosity — Brookfield viscometer; Free isocyanate monomer — GC; Residual solvents — GC; Heavy metals — ICP-MS. |
| Storage Notes | Stored in a tightly sealed, moisture-proof container under inert atmosphere (nitrogen or argon) in a cool, dry, well-ventilated area; protected from light, moisture, and heat; away from strong oxidizers, strong acids, strong bases, amines, alcohols, and water; store at 2–8°C (refrigerated) for long-term stability; avoid exposure to air (isocyanate reacts with atmospheric moisture); handle with strict moisture control. |
| Lead Time | days |
Used as a functional monomer in polymer synthesis; as a crosslinking agent for acrylic resins, polyurethanes, and coatings; the isocyanate group reacts with hydroxyl (-OH), amine (-NH₂), and thiol (-SH) groups to form urethane, urea, and thiourethane linkages; the two acrylate groups undergo free-radical polymerization (UV, thermal, or peroxide-initiated) enabling dual-cure systems; used in the production of UV-curable coatings, adhesives, sealants, and 3D printing resins; for the synthesis of polyurethane-acrylate hybrid polymers; in biomedical applications (hydrogels, drug delivery systems) where controlled crosslinking is required.