High Quality DHHB Diethylamino Hydroxybenzoyl Hexyl Benzoate Powder CAS 302776-68-7

DHHB  

What is DHHB Powder?   

Diethylaminohydroxybenzoylhexyl benzoate, also known as 4-tolylthiourea or p-methylphenylthiourea, is an ester compound with the chemical formula C₂₄H₃₁NO₄, a molecular weight of 397.507, and CAS Registry Number 302776-68-7. It appears as a yellow to dark yellow or greenish-yellow viscous liquid/solid with a density of 1.1±0.1 g/cm³, a boiling point of 524.8±40.0 ℃, a flash point of 271.2±27.3 ℃, and a refractive index of 1.565. It should be stored at 2-8℃.

Diethylaminohydroxybenzoylhexyl benzoate is primarily used as a UV absorber, belonging to the photostable UV-A absorber category. Its peak absorption wavelength is 354 nm; its molar absorptivity in ethanol at 25℃ reaches 39000 mol/dm³/cm. The vapor pressure of this substance is 0.0 ± 1.4 mmHg (25℃).

Feature

High-efficiency UVA protection: By absorbing light energy and converting it into heat, it reduces the penetration of ultraviolet rays into the dermis, thus preventing deep damage such as photoaging and pigmentation.

Excellent photostability: Its molecular structure is specially designed to remain stable under prolonged UV exposure, resisting photodegradation or structural isomerization. This stability ensures that the protective efficacy of sunscreen products does not rapidly diminish during use.

Optimized formulation compatibility and skin feel: As an oil-soluble ingredient, it is highly compatible with most sunscreen agents and cosmetic oil-phase raw materials, easily formulated into stable lotions, creams, or sprays. Its light texture does not add excessive stickiness or heaviness to the formula, contributing to an improved overall user experience.

Applications

The core ingredient in sunscreen products is the essential UVA protection component found in many international brand sunscreens and lotions. It's often combined with sunscreen agents (such as ethylhexyl methoxycinnamate and ethylhexyl salicylate) to achieve comprehensive protection.

In anti-photoaging skincare products, it's added to daytime lotions, creams, and makeup bases with anti-aging claims. As a key active ingredient in preventing photoaging, it helps reduce skin damage caused by UV rays, such as wrinkles and sagging. It's used in high-end skincare lines, providing a "preventative" anti-aging solution for consumers seeking comprehensive protection.

In professional and outdoor sunscreens, it's an important component of professional outdoor sports sunscreens and high-strength waterproof and sweat-resistant sunscreens. Due to its good photostability, it's suitable for prolonged outdoor activities. It's also commonly found in children's sunscreen formulas because its high photostability and relatively low skin irritation and sensitization meet the high requirements for safety and effectiveness in children's products.

For some products that require special packaging during transportation, we will carry out more delicate packaging. For example, retinal needs to be stored at -20 °C, so we choose cold chain transportation during transportation; deoxyarbutin will change color during transportation, so we will Vacuum packing of deoxyarbutin