Benzophenone-4
Benzophenone-4 is an organic compound that belongs to the class of benzophenones. It’s also known as sulisobenzone.
Chemical formula    C14H12O6S
Molar mass              308.31 g/mol
Melting point           145 °C (293 °F; 418 K)
Boiling point            305°C
HS Code                  291450
IUPAC 5-Benzoyl-4-hydroxy-2-methoxybenzene-1-sulfonic acid
Technical Analysis
Specification        Typical Values
pH 1.2-2.2
Molecular weight     308.31 g/mol
Density     1.46 g/cm³
CAS NO.                4065-45-6
Velocity 274-581-6
Benzophenone-4 (B4) is a protective ingredient that works to keep the UVB rays away from the skin and hair. It is basically a sunscreen but since it is weak, it is made to work with other sunscreen filters for added protection.