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Industrial whitepaper detailing photophysical mechanics, chemical synthesis, and formulation performance for industrial procurement teams.
CAS Number: 302776-68-7
INCI Name: Diethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB)
IUPAC Name: Hexyl 2-[4-(diethylamino)-2-hydroxybenzoyl]benzoate
Molecular Formula: C24H31NO4 | Molecular Weight: 397.51 g/mol
CAS 302776-68-7 is an oil-soluble, broad-spectrum UVA absorber featuring maximum radiation absorption peak at λmax = 354 nm in the UVA-I spectral region (320–400 nm). Unlike conventional organic filters, DHHB dissipates ultraviolet photon energy via intramolecular proton transfer (ESIPT) in its excited state, converting absorbed UV radiation into harmless thermal energy without forming free radicals or photo-degradation byproducts.
Traditional UVA absorbers like Avobenzone (Butyl Methoxydibenzoylmethane) experience rapid photo-degradation under UV light exposure, losing up to 36% absorbance within 1 hour. CAS 302776-68-7 demonstrates >98% photostability retention after 5 hours of continuous irradiation (10 MED solar exposure).
Furthermore, DHHB acts as a photostabilizer when combined with UVB filters like Octyl Methoxycinnamate (OMC) or Ethylhexyl Triazone (EHT). Its lipophilic hexyl ester moiety provides superior solubility in common cosmetic oils, polar solvents, and emollients such as C12-15 Alkyl Benzoate and Isopropyl Myristate (CAS 110-27-0).
| Test Parameter | Specification Standard | Test Method / Reference |
|---|---|---|
| Appearance | White to pale pink granular powder / liquid melt | Visual Inspection |
| Assay (HPLC) | ≥ 98.0% (Purity peak area) | High-Performance Liquid Chromatography |
| Specific Extinction (E1/1 at 354nm) | 910 to 950 | UV-Vis Spectrophotometry (Ethanol) |
| Melting Point | 54.0°C - 59.0°C | Capillary Tube Melting Apparatus |
| Loss on Drying | ≤ 0.50% | Vacuum oven @ 60°C for 3 hours |
| Heavy Metals (Pb, As, Cd, Hg) | ≤ 10 ppm Total | ICP-MS (Inductively Coupled Plasma) |
| Residual Hexane / Solvents | ≤ 290 ppm (Complies with ICH Q3C Guidelines) | Headspace GC-MS |
Intelligent, digitalized production architecture guaranteeing batch consistency, regulatory compliance, and scalable output.
Our Jinan manufacturing facility utilizes continuous flow micro-channel synthesis technology for CAS 302776-68-7. This precise thermal and residence-time control eliminates localized overheating, preventing dark byproduct formation and achieving an extraordinary chemical purity profile exceeding standard batch reactors.
Every barrel of CAS 302776-68-7 is integrated into our digital ERP and MES systems. By scanning the batch QR code, procurement engineers can instantly review raw material origins, reactor telemetry logs, HPLC testing raw data, and climate-controlled warehouse shipping parameters.
Through strategic upstream integration of phthalic anhydride and diethylamino phenol precursors, JIMPOCHEM guarantees multi-ton production security even during global raw material supply disruptions. We maintain a minimum 90-day strategic reserve of essential chemical building blocks.
Pioneering eco-friendly catalytic synthesis, nano-encapsulation, and green chemistry innovation.
Our R&D team is scaling up solid-acid heteropolyacid catalysts to replace traditional aromatic solvent routes in the esterification phase of CAS 302776-68-7 synthesis. This technological shift reduces VOC emissions by 92% and achieves carbon-neutral production certification standards by 2026.
To meet next-generation water-phase suspension requirements, JIMPOCHEM is developing silica shell micro-encapsulated DHHB derivatives. This technology enables easy dispersal into hydro-gels without requiring oil-phase emulsifiers, lowering skin sensitization rates to near-zero levels.
Custom tailored chemical formulation frameworks for global skincare, pharmaceutical, and polymer industries.
CAS 302776-68-7 is the primary choice for SPF 50+ broad-spectrum sunscreens. When combined with Bemotrizinol (CAS 187393-00-6), it offers synergistic Critical Wavelength values exceeding 380 nm, guaranteeing total protection against skin photo-aging, DNA damage, and hyperpigmentation.
Due to its high thermal stability and non-staining properties, DHHB is widely formulated into daily anti-aging moisturizers, color foundations, and liquid lipsticks, preventing UV-induced degradation of delicate bioactive peptides and botanical oils.
Beyond personal care, technical grade CAS 302776-68-7 serves as an advanced light stabilizer for high-transparency optical polycarbonates, automotive coatings, and outdoor polyurethane sealants, preventing UV-induced yellowing and cracking.
Ensuring seamless market entry into European, North American, and Asia-Pacific regulatory jurisdictions.
We provide localized packaging options tailored to your manufacturing facility’s automation requirements:
Designated Chemical Service Provider | Quality Leads the Future
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 serve more than 5,000 international companies across 200+ countries.
Browse our extensive raw material offerings across cosmetics, pharmaceuticals, rubber, plastics, fluorine, and food industries.
Direct answers for procurement managers, chemical engineers, and regulatory specialists.
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