Benzophenone-4 (BP-4,UV-284)
Product Name |
Benzophenone-4(UV-284, Sulisobenzone) |
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Synonyms |
Uvistat 1121;UV ABSORBER HMBS;TIMTEC-BB SBB002961;SULISOBENZONE;spectra-sorb uv 284;5-BENZOYL-4-HYDROXY-2-METHOXYBENZENESULFONIC ACID;2-HYDROXY-4-METHOXYBENZOPHENONE-5-SULPHONIC ACID;2-HYDROXY-4-METHOXYBENZOPHENONE-5-SULFONIC ACID |
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CAS |
4065-45-6 |
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Molecular formula |
C14H12O6S |
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Molecular Weight |
308.31 |
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Molecular Structure |
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Physical and Chemical Properties |
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General Description |
Off-white or light yellow crystalline powder |
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Usage |
As Benzophenone-4 is approved in the EU , the USA and Japan for skin protection ,it is widely used in sun preparations. |
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Packing |
Packed in cardboard drum lined with plastic bags with the net capacity of 25 kg per drum. |
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Storage condition |
Must be stored in closed containers in dry cool conditions. The shelf life of BP-4 is two years in original, unopened containers. |
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Specifications |
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Items |
Standard |
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Appearance |
Off-white or light yellow crystalline powder |
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Specific Extinction |
E288 ≥ 460 |
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E325 ≥ 290 |
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Assay(HPLC) |
≥ 99.0 % |
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Melting Point |
≥140.0℃ |
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Loss on Drying |
≤ 3.0 % |
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Heavy Metals |
≤ 5 ppm |
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Gardner color |
≤ 2.0 |