Benzophenone-9
CAS Number
76656-36-5
EC Number
278-520-4
What is Benzophenone-9?
Benzophenone-9 (CAS 76656-36-5) is a water-soluble UV absorber that protects formulations and substrates from UV-induced degradation.
Where is Benzophenone-9 used?
- Personal care and cosmetics: UV filter in water-based sunscreens, lotions and hair care products
- Coatings and inks: prevents photodegradation of colorants and binders in aqueous systems and printing inks
- Water-based adhesives and sealants: stabilising effect extends service life of bonded substrates
- Textile treatment: protects dyed fabrics from UV fading
- Its water solubility distinguishes it from most benzophenone-class absorbers.
Good to know: Its water solubility distinguishes it from most benzophenone-class absorbers, making it suitable for aqueous systems where oil-soluble alternatives cannot be used.
Other Names (Synonyms)
Uvinuc ds 49|Uvinul 3048|Disodium 2,2'-dihydroxy-4,4'-dimethoxy-5,5'-disulfobenzophenone|7925W14T4L|2,2'-Dihydroxy-4,4'-dimethoxy-5,5'-disulfobenzophenone, disodium salt|Benzenesulfonic acid, 3,3′-carbonylbis[4-hydroxy-6-methoxy-, sodium salt (1:2)|Benzenesulfonic acid, 3,3′-carbonylbis[4-hydroxy-6-methoxy-, disodium salt|Uvinul DS 49
What are the physical properties of Benzophenone-9?
Melting Point 350°C (dec.)
Color Pale Yellow to Yellow
Form neat
Which trade and regulatory codes apply to Benzophenone-9?
HS Code 2914500090
Storage Class 11 - Combustible Solids
WGK (Germany) 1