PRODUCT
Sun care
BENZOPHENONE-4

 Product identification

 
2-Benzoyl-5-methoxy-1-phenol-4-sulphonic acid
Synonyms:  Benzophenone-4
CAS# 4065-45-6
EINECS# 223-772-2
Structural Formula:
 
 
Molecular Formula:       C14H12O6S
Molecular Weight:         308.31
 
Specifications
 
Item
Specifications
Appearance
White or light yellow crystalline powder
Melting Point (°C)
140 min.
Loss on drying
a.5.0% max  b. 3.0% max
Assay
99.0% min.
PH value
1.2-2.2
Turbidity in water (EBC)
4.0 max
chroma
≤2.0
Heavy metals (as Pb)
5ppm max.
UV Absorbance Max E285nm
460 min.
UV Absorbance Max E325nm
290 min.
Avirulence
Not irritative to human skin
 
Application
Used in cosmetics as UV absorber. 
 
Package and storage
25kg fiber drums. Preserve in tight, light-resistent containers
 
Shelf Life
2 Years