Etocrylene
CAS Number
5232-99-5
EC Number
226-029-0
What is Etocrylene?
Etocrylene (CAS 5232-99-5), also known as UV Absorber-2, is an organic UV absorber that protects substrates from ultraviolet degradation.
Where is Etocrylene used?
- Personal care: sunscreen and cosmetic formulations requiring UV protection
- Plastics and polymers: light stabilizer in films, coatings and molded articles, preventing yellowing
- Printing and packaging: UV-curable inks and varnishes for photostability and longer surface service life
- Adhesives and industrial coatings: long-term resistance to UV-induced breakdown
- It absorbs UV radiation in the UVB and UVA range and prevents photodegradation in finished products.
Good to know: Often combined with other UV filters to broaden spectral coverage. Cosmetic-grade and technical-grade specifications are available for personal care and industrial applications respectively.
Commercial specifications
- Pale yellow to yellow liquid or low-melting solid; physical state depends on temperature and purity
- Purity typically confirmed by HPLC
- Packaging: drums and intermediate bulk containers
Other Names (Synonyms)
Ethyl 2-cyano-3,3-diphenylacrylate|UV Absorber-2|2-Cyano-3,3-diphenylacrylic acid ethyl ester|Uvinul N 35|Etocrylene [USAN]|2-Propenoic acid, 2-cyano-3,3-diphenyl-, ethyl ester|USAF A-15972|Ethyl (diphenylmethylene)cyanoacetate
What are the physical properties of Etocrylene?
Melting Point 95-97 °C
Boiling Point 185-195 °C @ Press: 1 Torr
Density 1,05 g/cm 3
Color White to Almost white
Form powder to crystal
Refractive Index 1.5100 (estimate)
Log P 4.520 (est)
How is Etocrylene classified and handled safely? Learn More
Warning
GHS07· Irritant GHS09· Environmental Hazard
Hazard Statements
H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
H400 Very toxic to aquatic life
H410 Very toxic to aquatic life with long lasting effects
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P273 Avoid release to the environment.
Which trade and regulatory codes apply to Etocrylene?
HS Code 29269090
UN Number 3077
ADR Class 9
Packing Group III
Storage Class 11 - Combustible Solids
WGK (Germany) 3