SINOMER® HEMA-HP is an ultra-high purity grade of 2-Hydroxyethyl Methacrylate (HEMA) with a minimum assay of 99.6%. It is specifically designed for demanding applications requiring stringent purity standards, including soft contact lenses, ophthalmic devices, dental materials, and medical adhesives.
The product features extremely low impurity levels (EGDMA, DEGMA), low acid value, low moisture content, and a precisely controlled low MEHQ stabilizer level (10 ± 3 ppm) – a critical differentiator from industrial-grade HEMA. These characteristics ensure consistent polymerization behavior, excellent optical clarity, and superior biocompatibility in finished products.
Chemical Name: Ultra-High Purity 2-Hydroxyethyl Methacrylate (≥ 99.6%)
CAS No.: 868-77-9
Molecular Formula: C6H10O3
Molecular Weight: 130.14
Molecular structure:
SINOMER® HEMA-HP is an ultra-high purity grade of 2-Hydroxyethyl Methacrylate (HEMA) with a minimum assay of 99.6%. It is specifically designed for demanding applications requiring stringent purity standards, including soft contact lenses, ophthalmic devices, dental materials, and medical adhesives.
The product features extremely low impurity levels (EGDMA, DEGMA), low acid value, low moisture content, and a precisely controlled low MEHQ stabilizer level (10 ± 3 ppm) – a critical differentiator from industrial-grade HEMA. These characteristics ensure consistent polymerization behavior, excellent optical clarity, and superior biocompatibility in finished products.
| Parameter | Specification |
|---|---|
| Appearance | Clear colorless transparent liquid |
| Assay (Purity) | ≥ 99.6% |
| DEGMA Content | ≤ 0.1% |
| EGDMA Content | ≤ 0.3% |
| Acid Content (as MAA) | ≤ 0.05% |
| Water Content | ≤ 0.1% |
| Color (APHA) | ≤ 10 |
| MEHQ Content | 10 ± 3 ppm |
Soft Contact Lenses – primary monomer for hydrogel lens formulations
Intraocular Lenses & Ophthalmic Devices
Dental Materials – composites, adhesives, sealants
Medical Adhesives & Sealants
Drug Delivery Systems – hydrogel-based carriers
Biomedical Hydrogels & Tissue Engineering Scaffolds
High-Performance Optical Coatings & Films
| Feature | SINOMER® HEMA-HP | Industrial Sinomer HEMA |
|---|---|---|
| Purity | ≥ 99.6% | ≥ 97.0% |
| MEHQ Level | 10 ± 3 ppm | 200 ± 20 ppm |
| Color (APHA) | ≤ 10 | ≤ 20 |
| Primary Applications | Contact lenses, medical devices, optics | Coatings, inks, general adhesives |
Available in sealed, light-resistant containers. Standard packaging is 25 kg/drum. Custom packaging is available upon request.
Store in a dry, clean, well-ventilated warehouse.
Keep container tightly closed when not in use.
Avoid exposure to light and heat.
Protect from moisture and oxidizing agents.
Shelf life: 12 months in original unopened packaging under recommended storage conditions.
Avoid skin and eye contact. In case of contact, rinse thoroughly with water.
Use appropriate personal protective equipment (gloves, goggles).
Ensure adequate ventilation during handling.
For complete safety information, refer to the Material Safety Data Sheet (MSDS).
This document is for informational purposes only. Users should conduct their own testing to determine suitability for their specific applications. SINOMER® is a registered trademark of Sinocure Chemical Group.
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