Benzophenone-3
Synonyms
2-Hydroxy-4-methoxybenzophenone;
Benzophenone, 2-hydroxy-4-methoxy-;
Methanone, (2-hydroxy-4-methoxyphenyl)phenyl-;
Oxybenzone (INN);
Category
Non-ionic surfactant
> Phenol
> Keto-group Phenol
Chemical Numbering System
CAS: 131-57-7
EINECS: 205-031-5
Molecular Formula & Molecular Weight
Molecular Formula: C14H12O3
Molecular Weight: 228.24
Structure
Properties
Appearance (1), white to pale yellow crystal.
Solubility slightly soluble in water.
Stability stable. Easily oxidized.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
rat oral LD50 |
7400mg/kg[1] |
|
mouse intraperitoneal LD50 |
300mg/kg[1] |
Reproductive effect (very small negative impact).
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent anti-photoaging, UV absorbing, dispersing abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as UV absorbing agent.
Use as anti-photoaging agent.
Use as photosensitizing agent.
2, Personal care products
UV absorbing agent in personal care products.
Further information:
(1), In accordance with Safety and Technical Standards for Cosmetics (2015 Edition) of China, be included in the allowed UV filters.
Maximum concentration is 10%.
(2), In accordance with EU regulations (EC) No 1223/2009, directive 83/574/EEC, be included in Annex VI/4.
Maximum concentration is 6%.
Not more than 0.5 % to protect product formulation.
3, Coatings
UV absorbing agent in coatings.
4, Polymer
UV absorbing agent in polymers, resins, plastics.
Manufacturers
References
[1]: ChemIDplus. 131-57-7, Oxybenzone
Update: 20130909(1); 20190901(2)