Direct Factory Supply with High-Purity Quality Standards and International Compliance
Understanding the Chemistry Behind Next-Generation UVA Photoprotection
Diethylamino Hydroxybenzoyl Hexyl Benzoate (commonly abbreviated as DHHB, INCI name: Diethylamino Hydroxybenzoyl Hexyl Benzoate, CAS No. 302776-68-7) is an advanced, oil-soluble organic UV filter designed to provide exceptionally high protection against broad-spectrum UVA radiation (320–400 nm), with peak absorption centered precisely at 354 nm.
Unlike conventional UVA absorbers such as Avobenzone (Butyl Methoxydibenzoylmethane), which degrade rapidly upon exposure to sunlight and require complex photo-stabilizers, DHHB possesses an intrinsic molecular design that renders it virtually immune to light-induced degradation. Its intramolecular hydrogen bond facilitates reversible keto-enol tautomerism, enabling absorbed solar energy to dissipate safely as non-damaging thermal energy.
As global personal care brands shift toward stringent clean beauty frameworks, reef-safe compliance, and high PA rating criteria (PA++++), Chinese manufacturers have upgraded synthesis pathways to yield ultra-pure grades (>99.0%) with minimal residual solvent footprints.
| Chemical Parameter | Specification & Technical Metric |
|---|---|
| INCI Name | Diethylamino Hydroxybenzoyl Hexyl Benzoate |
| CAS Registry No. | 302776-68-7 |
| EC Number | 443-860-6 |
| Molecular Formula | C24H31NO4 |
| Molecular Weight | 397.51 g/mol |
| Peak Absorption (λmax) | 354 nm (E1/1 = 910–940) |
| Appearance | White to pale pinkish granular powder |
| Assay (HPLC) | 99.0% – 101.0% Min |
| Melting Point | 54.0 °C – 59.0 °C |
| Solubility Profile | Oil-soluble (>20% in C12-15 Alkyl Benzoate) |
Macro Shifts Shaping the Sourcing and Regulatory Landscape of DHHB
Strict ecological mandates in Hawaii, Palau, the US Virgin Islands, and the EU are banning eco-toxic filters like Oxybenzone (Benzophenone-3) and Octinoxate due to coral reef bleaching risks. DHHB offers an environmentally benign, highly effective alternative for broad-spectrum formulations.
Modern consumers demand comprehensive photo-aging mitigation. Achieving a broad-spectrum protection factor with a critical wavelength >370nm and a high UVA/UVB ratio necessitates photostable UVA filters like DHHB at dosage levels up to 10% in the EU, China, Japan, and Korea.
Formulators increasingly blend DHHB with modern broad-spectrum absorbers like Bemotrizinol (BEMT, CAS 187393-00-6) and Ethylhexyl Triazone (EHT) to create elegant, non-greasy, water-resistant daily skin protection gels and fluid sunscreens.
How Modern Smart Factories Guarantee Volume Stability, Cost Efficiency, and Purity
Leading Chinese chemical producers, including JIMPOCHEM CO., LTD (headquartered in Jinan, Shandong, spanning over 500 acres), have transitioned from traditional batch reactors to continuous flow automated micro-reactor systems. This continuous process control eliminates batch-to-batch variations, yields consistent crystalline morphology, and significantly minimizes thermal impurities.
Integrated Distributed Control Systems (DCS) monitor key process variables—temperature, pressure, feed rates, and crystallizer cooling rates—in real time. The resulting Diethylamino Hydroxybenzoyl Hexyl Benzoate exhibits exceptional batch uniformity, brilliant white-to-light-pink appearance, and minimal odor profiles ideal for luxury fragrance-free cosmetic lines.
Assay evaluation against certified reference standards ensuring active purity >99.0% and impurity profile <0.5%.
Residual solvent screening (toluene, ethanol, ethyl acetate) adhering to ICH Q3C safety guidelines.
Heavy metals analysis (As <2 ppm, Pb <5 ppm, Cd <1 ppm, Hg <1 ppm) fulfilling EU, FDA, and NMPA requirements.
Bridging Quality, Regulatory Compliance, and Supply Chain Security for Multinationals
Global procurement teams require comprehensive compliance packages. Top Chinese factories provide full EU REACH registration, US FDA DMF filings, ISO 22716 (GMP) certificates, Halal/Kosher documentation, and COA per batch.
DHHB requires proper solubilization to prevent crystal growth during long shelf storage. Chinese application labs assist buyers with optimal polar solvent choices (e.g., C12-15 Alkyl Benzoate, IPM, Isodecyl Neopentanoate).
To shield global buyers from ocean freight spikes or demand fluctuations, leading suppliers offer flexible packaging options (25kg fiber drums, 500kg super sacks) and regional warehousing buffer agreements.
Versatile Performance Across Personal Care and Industrial Protection Markets
In O/W and W/O emulsion sunscreens, DHHB acts as the primary UVA shield. Incorporated into the oil phase at 54°C–60°C, it remains fully stable without discoloring final creams.
Beyond sunscreens, DHHB is widely utilized in daily anti-wrinkle day creams, serums, and clear lip balms to prevent photo-induced degradation of delicate cosmetic pigments and active vitamins.
Your Premier Designated Chemical Service Provider and Trusted Global Partner
Established in 2010 and headquartered in the Chemical Industry Park of Jinan City, Shandong Province, JIMPOCHEM CO., LTD covers an expansive area of over 500 acres. As a modern, professional chemical raw material manufacturer, we seamlessly integrate R&D, continuous synthesis production, global sales, and technical consultation.
Our core focus centers on high-end fine chemicals, cosmetic actives, organic intermediates, and fluorinated compounds. Possessing rigorous quality certifications—including ISO 9001 quality management and ISO 14001 environmental safety systems—we deliver customized raw material solutions and one-stop procurement to international enterprises.
Backed by a senior engineering team averaging 16+ years of chemical synthesis expertise, our products reach over 200 countries across Europe, the Americas, Southeast Asia, the Middle East, and Oceania, serving more than 5,000 corporate clients globally.
Direct Answers from Our Technical Services and Formulations Team
Under the EU Cosmetic Regulation (EC No. 1223/2009) and China’s Safety and Technical Standard for Cosmetics (2015 edition), Diethylamino Hydroxybenzoyl Hexyl Benzoate is authorized at a maximum concentration of 10.0% in ready-for-use cosmetic preparations. In Japan, it is approved up to 10.0% as well.
Avobenzone loses 50% to 70% of its UVA absorption capacity within 1 hour of UV exposure unless stabilized with octocrylene or BEMT. In contrast, DHHB demonstrates virtually 100% photostability under intense solar radiation, eliminating the need for dedicated photo-stabilizers.
DHHB is oil-soluble. Exceptional solubility is achieved in polar cosmetic oils such as C12-15 Alkyl Benzoate (~24%), Dibutyl Adipate (~30%), Isopropyl Myristate (~20%), and Caprylic/Capric Triglycerides (~18%). Proper oil phase selection prevents recrystallization over shelf life.
Yes. DHHB exhibits high compatibility with surface-treated Titanium Dioxide and Zinc Oxide non-nano powders. Combining organic DHHB with inorganic filters allows formulators to achieve high SPF/PA values while maintaining light textures.
Every commercial batch comes with a detailed Certificate of Analysis (COA) specifying HPLC Purity, Melting Point, Loss on Drying, Heavy Metals, and Residual Solvents. Material Safety Data Sheets (MSDS/SDS) and REACH registration proof are available upon inquiry.
The standard shelf life is 24 months when stored in original sealed containers in a cool, dry, well-ventilated area away from direct sunlight and temperature spikes (<30°C).
Comprehensive Raw Material Procurement Portfolio for Fine Chemical Buyers
JIMPOCHEM