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Padimate-O

CAS Number
21245-02-3
EC Number
244-289-3
Chemical Formula
C17H27NO2
Molecular Weight
277.4 g/mol

Description

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 Request Quote

Other Names (Synonyms)

Ethylhexyl dimethyl paba | 4-(dimethylamino)benzoic acid 2-ethylhexyl ester | 2-ethylhexyl 4-(dimethylamino)benzoate | Padimate o

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point242.5-243.5 °C
Boiling Point325 °C
Density0.995 g/mL at 25 °C(lit.)
Flash Point>230 °F
ColorOff-White to Orange
Formneat
Water Solubility100μg/L at 20℃
Vapor Pressure0.001Pa at 25℃
Refractive Indexn 20/D 1.542(lit.)
Log P6.2

Safety & Handling

Danger
GHS07· IrritantGHS08· Health Hazard

Hazard Statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29224999
Storage Class6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects
WGK (Germany)2