Chemical name：2-Hydroxy-4-Methoxy Benzophenone-5-Sulfonic Acid
Synonyms：Benzophenone-4; BP-4；UV-284
1). Appearance：White crystalline powder
3). Melting point：160.0℃ min
4). Dry loss：2.0 % max
5). Color：2.0 max
6). Specific extinction：285nm，460min；325nm，290min.
Characteristics and Application：
HYSHELL® BP-4 is a broad-spectrum UV absorbent, the appearance is white crystalline powder, with good characteristics of high absorption efficiency, non-toxic, no teratogenic side effects, good light and thermal stability. It can absorb UVA and UVB, and is the FDA approved classⅠsunscreen, it is frequently used in European and American countries, and is widely used in sunscreen cream, emulsion, oil and other sunscreen cosmetics. It is mainly used in water-soluble cosmetics as anti-suntan sunscreen, and can also be used in other water-soluble inks and coatings as ultraviolet absorbent. As an anti-ultraviolet finishing agent, it also has good anti-aging and softness effects on cotton fabrics and polyester fibers.
