Benzophenone-3(BP-3)
Benzophenone-3 (Oxybenzone) is an organic compound commonly used as a UV filter in sunscreens, personal care products, and cosmetics. It absorbs UV light, primarily in the UVB and UVA regions, helping to protect the skin from the harmful effects of ultraviolet radiation, such as sunburn and premature aging. Benzophenone-3 is widely used in sunscreen formulations for its ability to enhance the product's sun protection factor (SPF), while also stabilizing the other ingredients.
Product Name: Benzophenone-3
CAS Number: 131-57-7
Molecular Formula: C14H12O3
Other Names:
BP-3
2-Hydroxy-4-methoxybenzophenone
2-Hydroxy-4-methoxyphenyl ketone
Chemical Name:
2-Hydroxy-4-methoxybenzophenone
Applications:
Sunscreens & Sun Care Products: Benzophenone-3 is a key ingredient in sunscreen and sunblock formulations, offering protection against harmful UV radiation. It is effective in preventing sunburn and reducing the risk of skin cancer caused by prolonged sun exposure.
Cosmetics & Personal Care: Often found in moisturizers, foundations, and anti-aging creams, Benzophenone-3 helps protect the skin from UV damage while maintaining the integrity of the product.
Hair Care: Used in shampoos, conditioners, and other hair products to prevent UV-induced hair damage, including color fading and dryness.
Fragrances & Deodorants: Can be used in fragrance formulations to protect the scent from UV degradation, ensuring longer-lasting fragrance in cosmetic products.
Textile & Industrial Products: Sometimes used in fabric treatments to protect textiles from UV degradation and fading.
Benzophenone-3 is approved for skin care in the EC,the USA and Japan,it is widely used in sun preparations.Benzophenone-3 is a broad-band filter and can therefore also be used in topical sunscreens,moisturizers,shampoos,hair care products,lipstick,lip balms,nail polish,plastic materials,dental composite materials.It is also used as color preserver in paints and varnishes.Non-polar oils such as liquid paraffin are less suitable,as Benzophenone-3 can crystallize out as a result of supersaturation after prolonged storage.
|
C.A.S No. |
131-57-7 |
|
|
Chemical Name |
2-Hydroxy –4-methoxybenzophenone |
|
|
Molecular Formula |
C14H12O3 |
|
|
Molecular Weight |
228.25 |
|
|
Items |
Specifications |
Results |
|
Appearance |
Pale greenish yellow crystalline powder |
Conform |
|
Odor |
Similar in character and intensity to standard ,very slight odor |
Conform |
|
Identification |
A.Infrared Absorption<197K> |
Conform |
|
B.The retention time corresponds to the standard. |
Conform |
|
|
Congealing |
≥62.0 |
62.1 |
|
Assay (HPLC) |
97.0%-103.0% |
100.5% |
|
Melting Point |
62-65℃ |
62.6-63.7℃ |
|
Impurities (HPLC) |
Total impurities:≤ 1.0% |
0.041 |
|
Benzophenone-1:≤0.2% |
0.02 |
|
|
Single largest unspecified impurities:≤0.10% |
0.0066 |
|
|
Loss on Drying |
≤0.2% |
0.12% |
|
Residual Solvents |
Ethanol ≤ 5000ppm |
/ |
|
Gardner Color |
≤4.0 |
3.2 |
|
Specific Extinction (1%,1cm) |
E288≥630 |
642 |
|
E325≥410 |
417 |
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