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BP-4(Benzophenone UV Absorber ) 2-hydroxyl-4-methoxylbenzophenone-5-sulfonic acidCAS: 4065-45-6

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Synonyms: 1-Phenol-4-sulfonicacid, 2-benzoyl-5-methoxy- (6CI);2-Hydroxy-4-methoxy-5-sulfobenzophenone;2-Methoxy-4-hydroxy-5-benzoylbenzenesulfonic acid;3-Benzoyl-4-hydroxy-6-methoxybenzenesulfonic acid;5-Benzoyl-4-hydroxy-2-methoxybenzenesulfonic acid;Benzophenone 4;Escalol 577;MS 40;NSC 60584;Seesorb 101S;Spectra-Sorb UV 284;Sulisobenzone; Classification: Other Chemicals
EINECS: 223-772-2 Molecular Formula: C14H12O6S
Melting Point: 170℃ Boiling Point: 0°C
Stability: Water Solubility:
Refractive index: Flash Point: 0°C
Purity: Appearance:
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Detailed Description

 BP-4(Benzophenone UV Absorber )

Chemical name: 2-hydroxyl-4-methoxylbenzophenone-5-sulfonic acid

Introduction : BP-4 is a benzophenone type ultraviolet light absorber (UVA), BP-4 is suitable for sun screen cosmetics.

Details

Molecular Formula : C14H12SO6  CAS NO : 4065-45-6
Structure :
Physical Properties

Appearance :  off-white powder or crystalline powder.

Assay:≥99% Melting point≥140℃

Loss on drying: ≤5.0%  Heavy metal:≤5ppm

UV absorbance(1%) E-value: 285nm≥460 325nm≥290

Application:  BP-4 also called sun screener No.3 is a widely used UV-absorbers, it’s non-toxic, without irradiation for human skin. It has high efficient absorbance, good resistance to light, it can absorb UV-A and UV-B at the same time, it is approved by FDA as I class sun screener, widely used in Europe and America, mainly used in suntan cream and some sun screen cosmetics.

PackingBP-4 is available in powder form in 25kg carton, net weight, with an inner PE liner or 25kg fiber drum


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