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benzoic_acid主图_20260128.jpg "China Chemical Manufacturer Supply High Quality 2-(4-Diethylamino-2-hydroxybenzoyl)benzoic acid CAS 5809-23-4 wholesale")
2-(4-Diethylamino-2-hydroxybenzoyl)benzoic acid is an organic compound used primarily as a photostable UVA filter in sunscreens and cosmetics. It effectively absorbs long-wave ultraviolet A (UVA) radiation (350–380 nm), helping protect skin from photoaging, pigmentation, and DNA damage. This pale yellow powder is valued for its stability under sunlight and compatibility with other UV filters, enabling broad-spectrum protection when combined with UVB absorbers. It’s commonly found in facial creams, anti-aging products, and sun care formulations outside the United States. While approved in the European Union, Japan, and other regions, it is not currently FDA-approved for use in U.S. sunscreens. Beyond UV protection, it also stabilizes light-sensitive ingredients like fragrances and dyes. Its safety profile and efficacy make it a preferred choice in modern, high-performance sun protection systems worldwide.
Items | Specifications | Results |
Appearance | Plum-red powder | Conform |
Loss on Drying | ≤0.5% | 0.25% |
Purity (HPLC) | ≥98.0% | 99.24% |
Conclusion | The product conforms to the above specifications. | |
2-(4-Diethylamino-2-hydroxybenzoyl)benzoic acid is an organic compound primarily used as a UV filter in cosmetic and personal care products. It is also known by its INCI name: Diethylaminohydroxybenzoyl Benzoic Acid or by the trade name Parsol DHHB (though note: Parsol DHHB usually refers to Diethylamino Hydroxybenzoyl Hexyl Benzoate—a related but distinct esterified derivative).
Key Features:
Molecular Formula: C₁₇H₁₉NO₄
Appearance: Pale yellow to off-white powder
UV Absorption: Strong absorption in the UVA range (～350–380 nm), making it effective against long-wave ultraviolet radiation.
Main Uses:
Photostable UVA Filter in Sunscreens
Used in formulations to protect skin from UVA-induced aging, pigmentation, and DNA damage.
Often combined with UVB filters (e.g., octinoxate) for broad-spectrum protection.
Cosmetic Stabilizer
Helps prevent UV degradation of other ingredients (e.g., colors, fragrances) in makeup, moisturizers, and anti-aging creams.
Regulatory Status
Approved in the EU, Asia, and other regions, but not currently approved by the U.S. FDA for use in sunscreens (as of 2024), limiting its use in American products.
Due to its photostability, efficacy, and compatibility with other filters, this compound is valued in modern sun care—especially where strong, stable UVA protection is required.
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