High-purity chemical raw materials certified under rigorous ISO and international quality standards
An authoritative analysis of market supply dynamics, broad-spectrum UV protection shifts, and manufacturing scalability
In the contemporary personal care and photoprotection industry, Diethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB) has emerged as the definitive oil-soluble UVA-I filter (320–400 nm peak wavelength at ~354 nm). Driven by escalating consumer awareness regarding photo-aging (Soliagenesis), deep dermal structural degradation, and skin cancer risks, global cosmetic brands are systematically phasing out unstable traditional UVA absorbers like Avobenzone in favor of photostable organic filters.
China has firmly established itself as the global manufacturing epicenter for high-purity DHHB raw materials. Backed by integrated chemical supply chains, robust synthesis technology, and scalable crystal-purification capacity, premier Chinese chemical producers supply over 65% of the worldwide demand for daily sun care, premium anti-aging formulations, and sports sunscreens.
Historically monopolized by international chemical conglomerates, the DHHB market experienced significant cost efficiency and quality maturation as leading Chinese entities like JIMPOCHEM CO., LTD modernized synthesis pathways. Operating modern production complexes spanning over 500 acres in Jinan, Shandong, premier manufacturers have resolved legacy issues including residual solvent contamination (e.g., toluene/methanol limits) and color batch variations.
Global procurement teams favor sourcing DHHB from verified China suppliers due to flexible minimum order quantities (MOQ), stringent compliance with European REACH registrations, US FDA OTC monograph updates, and competitive total cost of ownership (TCO).
While primary consumption resides in personal care (sunscreen lotions, BB creams, anti-aging serums), industrial applications of DHHB are expanding rapidly. DHHB serves as an ultra-effective UV stabilizer for advanced coatings, polymeric clear films, high-end automotive transparent paints, and specialty optical plastics that require non-yellowing, prolonged resistance to solar radiation.
By preventing free-radical cascade generation induced by long-wave UVA photons, DHHB safeguards both biological tissue and synthetic matrix structures from oxidative stress and mechanical degradation.
Understanding the molecular architecture, keto-enol tautomerism stability, and spectral absorption profile of DHHB
The structural efficacy of Diethylamino Hydroxybenzoyl Hexyl Benzoate (CAS 302776-68-7, C24H31NO4, MW: 397.51 g/mol) stems from its optimized intramolecular hydrogen bond situated between the hydroxyl group and the carbonyl oxygen on the benzoyl moiety. Upon absorbing high-energy UVA-I photons (320–400 nm), the molecule undergoes an ultra-fast Excited State Intramolecular Proton Transfer (ESIPT).
This rapid photophysical cycle converts dangerous solar radiative energy into non-destructive vibrational thermal energy without releasing reactive oxygen species (ROS) or undergoing molecular cleavage. Consequently, DHHB demonstrates exceptional photostability: even after 5 hours of continuous high-intensity UV irradiation, over 98% of the active molecule retains its original structural integrity, drastically outperforming un-stabilized dibenzoylmethane derivatives.
| Technical Parameter | Standard Specification | Analytical Method / Test Standard |
|---|---|---|
| Chemical Name | Diethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB) | IUPAC Nomenclature |
| CAS Registration Number | 302776-68-7 | CAS Database |
| Appearance | White to pale pinkish granular powder or crystalline flakes | Visual Inspection |
| Assay (Purity) | 98.0% – 102.0% | HPLC (High-Performance Liquid Chromatography) |
| Melting Point Range | 54.0°C – 59.0°C | Capillary Melting Point Apparatus (ISO 3146) |
| Specific Absorption (E 1%/1cm) | 910 – 940 (at ~354 nm in ethanol) | UV-Vis Spectrophotometry |
| Loss on Drying | ≤ 0.50% | Gravimetric (105°C, 2 hours) |
| Heavy Metals (Pb, As, Cd, Hg) | Total ≤ 10 ppm (Individual ≤ 2 ppm) | ICP-MS (Inductively Coupled Plasma Mass Spectrometry) |
| Residual Solvents | Methanol ≤ 50 ppm, Toluene ≤ 100 ppm | Headspace GC-MS |
Next-generation catalytic synthesis, solvent-free crystallization, and sustainable chemical engineering at JIMPOCHEM
Conventional production pathways historically generated high chemical oxygen demand (COD) wastewater and solid salt byproducts. Modern manufacturing protocols at JIMPOCHEM employ heteropolyacid solid catalysts and atom-economic condensation of 4-(diethylamino)-2-hydroxybenzoic acid with 1-hexanol.
This process increases conversion efficiency to >96% while reducing energy consumption by 28%. Real-time inline FTIR spectroscopy continuously monitors intermediate purity to prevent side-reactions.
To meet global cosmetics safety directives, raw DHHB undergoes multi-stage fractional crystallization. Utilizing food-grade alcohol solvent systems in an enclosed continuous-flow crystallizer, the crystal growth is precisely managed to produce uniform granular structures.
Over 99.2% of processing solvents are recovered and recycled via vacuum distillation columns, virtually eliminating volatile organic compound (VOC) emissions into the atmosphere.
Every industrial batch produced in our 500+ acre Jinan complex is assigned an immutable digital batch record. Advanced batch-traceability software links raw material sourcing (phthalic anhydride derivatives) directly to downstream QA test certificates.
Third-party testing validation by independent accredited laboratories ensures 100% compliance with international heavy metal, microbial, and residual monomer standards.
Engineering synergy between DHHB, UVB absorbers, emollient solvents, and bio-functional active ingredients
DHHB is a crystalline solid with a melting point between 54°C and 59°C. Achieving long-term thermal stability in oil-in-water (O/W) or water-in-oil (W/O) emulsions requires choosing the correct polar cosmetic solvents to prevent recrystallization at low storage temperatures.
Superior polar oils for dissolving DHHB include Isopropyl Myristate (CAS 110-27-0), C12-15 Alkyl Benzoate, Dibutyl Adipate, and Diisopropyl Sebacate. Combining DHHB with non-polar cosmetic oils like Squalane (CAS 111-01-3) provides enhanced skin-feel while ensuring seamless film formation across skin contours.
To achieve high SPF (Sun Protection Factor) alongside high PA++++ ratings (Protection Grade of UVA), formulation chemists combine DHHB with photostable broad-spectrum and UVB absorbers. Ideal synergy partners include:
16 years of expertise, strategic global distribution, and end-to-end custom synthesis solutions
JIMPOCHEM CO., LTD was established in 2010 and is headquartered in the Chemical Industry Park of Jinan City, Shandong Province. The company covers an area of over 500 acres and is a professional chemical raw material manufacturer that integrates research and development, production, sales, and technical services. Its core focus is on high-end fine chemicals and cosmetic raw materials. We have obtained multiple product-related certifications, including ISO quality system certification and environmental management system certification, and are committed to providing high-quality chemical products and one-stop procurement service solutions to global customers.
Our core team comprises experts with over 10 years of experience in the chemical industry. This enables us not only to provide professional products but also to offer solutions in product development, formula optimization, and supply chain management, meeting the personalized needs of diverse clients. We provide high-quality products and services, and our products are exported to over 200 countries and regions in Europe, America, Southeast Asia, the Middle East, and Oceania, serving more than 5,000 international companies. We have also established long-term strategic partnerships with many internationally renowned chemical companies, becoming a trusted "designated chemical service provider" for numerous clients.
Expert technical insights regarding compliance, safety, formulation chemistry, and global market authorization
Complementary chemical ingredients for cosmetics, medical care, and fine organic synthesis
Providing integrated "R&D - production - application - service" solutions across global industrial sectors
Cosmetics, makeup, perfume, facial cleansers, hand sanitizers, body wash, toothpaste, and detergents, etc.
Production of active pharmaceutical ingredients (API), pharmaceutical excipients, intermediates, solvents, catalysts, reactants, medical anesthesia.
Packaging, automobiles, tire manufacturing, seals, and industrial components.
Architectural and decorative coatings, industrial coatings, printing inks, industrial and specialty inks.
Food additives, preservatives, colorants, and nutritional additives.
Manufacturing semiconductors, printed circuit boards (PCBs), display materials, batteries, electrolytes, etc.
JIMPOCHEM
