Overview
Padimate-O (CAS 21245-02-3 ), also known commercially as Ethylhexyl Dimethyl PABA, is an oil-soluble UV absorber that filters UVB radiation in the 290–315 nm range.
It is used across personal care, polymer, and printing applications to protect formulations and substrates from UV-induced degradation. In sunscreen and cosmetic formulations, it functions as an approved UVB filter.
The material is incorporated into lotions, creams, and lip care products to meet SPF performance targets. Polymer manufacturers use it as a UV stabilizer in plastic films and coatings where resistance is required.
In printing and packaging, it is incorporated into UV-curable ink and coating systems. It contributes to controlled photoinitiator activity and cross-linking behavior in these specific industrial applications.
Its reactivity with certain resin systems positions it as a building block or catalyst precursor in specialty curing formulations. This versatility makes it a staple in high-performance chemical manufacturing.
Padimate-O is supplied as a pale yellow to amber liquid. It is available in cosmetic-grade specifications meeting requirements for inclusion in regulated personal care products across major global markets.
Technical-grade material is also available for industrial polymer and printing applications. Our supply chain ensures consistent quality and availability for large-scale manufacturing and formulation needs.
Contact us for supply of Padimate-O
Physical Properties
| Melting Point | 242.5-243.5 °C |
| Boiling Point | 325 °C |
| Density | 0.995 g/mL at 25 °C(lit.) |
| Flash Point | >230 °F |
| Color | Off-White to Orange |
| Form | neat |
| Water Solubility | 100μg/L at 20℃ |
| Vapor Pressure | 0.001Pa at 25℃ |
| Refractive Index | n 20/D 1.542(lit.) |
| Log P | 6.2 |
Safety & Handling
Danger GHS07 GHS08 Hazard Statements H315 Causes skin irritation H319 Causes serious eye irritation H335 May cause respiratory irritation Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29224999 |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| WGK (Germany) | 2 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 21245-02-3
- EC Number
- 244-289-3
- Mol. Weight
- 277.4
- HS Code
- 29224999
- Category
- Monomers & Building Blocks