ultraviolet absorbent UV-284,BP-4
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Post Date:
May 29,2007
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Expiry Date:
Jul 28,2007
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Detailed Description:
Cas No. : [4065-45-6]
Quantity: 20000Kilograms
Specs:UV-284
Payment Method: TT
2-Hydroxy-4-Methoxy-benzophenone-
5-sulfonic Acid
Alias: ultraviolet absorbent UV-
284,BP-4
Molecular Formula: C14H12O6S
Molecular Weight: 308.31
CAS NO.: [4065-45-6]
Structural Formula:
Appearance: white or light yellow
powder
Melting Point: ≥ 150癈
Drying Loss: ≤ 2.0% (can also be
tailored upon clients' request)
Assay: ≥ 99.0%
PH Value: 1.2-2.2
Turbidity of aqueous solution: ≤
2.0 EBC
Chroma: ≤ 2.0
Heavy Metal: ≤ 5ppm
Specific Absorptivity(285nm): ≥
460
Specific Absorptivity(325nm): ≥
290
Toxicity: non-irritative to human
skin
Packing: sterilization, cardboard
drum lined with vacuum bag 20
kg/drum or 25kg/drum
Storage: closed tight and avoid
light
Features & Use: it is a water-
souble and broad-spectrum
ultraviolet absorbent with high
absorptivity and non-toxicity;
stable to light and heat; can
absorb both UV-A and UV-B. it is
a Type Ⅰsunscreen agent approved
by FDA,and widely used in
sunscreen cosmetics.
Shelf Life: 24 months, 60days
after unsealing
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CAS Registry Number:
[4065-45-6]