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Understanding the Molecular Mechanics, Photostability, and Formulation Dynamics of CAS 187393-00-6 (Bemotrizinol)
Bis‑Ethylhexyloxyphenol Methoxyphenyl Triazine (commonly referenced in international cosmetic pharmacopeia as Bemotrizinol or INCI designation BEMT, CAS No. 187393-00-6) represents the gold standard in organic oil-soluble broad-spectrum ultraviolet (UV) absorption technology. Structured upon a central hydroxyphenyl-triazine core, this compound delivers unprecedented dual absorption peaks covering both the UVA (310–400 nm) and UVB (290–320 nm) spectra.
Unlike legacy chemical UV filters such as Oxybenzone or Octinoxate, Bemotrizinol exhibits extraordinary photostability. Upon absorbing high-energy solar radiation, it dissipates internal excitation energy through ultrafast internal conversion (Excited State Intramolecular Proton Transfer - ESIPT) without chemical bond cleavage. This thermal dissipation mechanism ensures that over 98% of its protective filtration power remains active after 5 hours of continuous solar exposure.
| Active UV Filter Parameter | Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine (BEMT) | Avobenzone (BMDBM) | Octocrylene | Zinc Oxide (Micro-fine) |
|---|---|---|---|---|
| Spectral Range Covered | Broad-Spectrum UVA I, UVA II & UVB | UVA I Only (320–400 nm) | UVB & Partial UVA II | Broad-Spectrum (Physical Reflection) |
| Photostability Profile | Extremely High (>98% active post-5h) | Poor (Degrades ~50% in 1h) | High (Acts as Stabilizer) | Inert (Highly Stable) |
| Extinction Coefficient (E 1%/1cm) | > 800 at 343 nm | ~ 390 at 357 nm | ~ 350 at 303 nm | N/A (Scattering mechanism) |
| Photo-Stabilizing Ability | Stabilizes Avobenzone & Octyl Methoxycinnamate | Requires secondary stabilization | Moderate stabilizer | Neutral |
| Sensory Profile on Skin | Light, Non-greasy, Zero White Cast | Oily / Potential Staining | Heavy, Sticky Feel | Noticeable White Cast / Drag |
Unlocking Supply Chain Efficiency, Technical Mastery, and Cost Optimization for Global Cosmetic Brands
China's fine chemical sector hosts the world's most complete value chain for triazine chemical synthesis. From basic petrochemical intermediates to specialized cyanuric chloride and alkylated phenol precursors, local access eliminates international freight delays and mitigates raw material volatility for Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine production.
Modern Jinan chemical complexes utilize digitally controlled, multi-stage reaction vessels coupled with continuous crystallizers. Automated micro-channel reactors allow strict thermodynamic control during etherification and triazine ring condensation, resulting in consistent batch-to-batch purity exceeding 99.0% while drastically minimizing byproduct waste.
Factories adhere strictly to ISO 9001, ISO 14001, and cosmetic GMP standards. Quality Control (QC) laboratories employ state-of-the-art High-Performance Liquid Chromatography (HPLC), Ultra-Violet/Visible (UV-Vis) Spectrophotometry, Heavy Metal ICP-MS testing, and Residual Solvent GC-MS analysis to guarantee global regulatory compliance.
Because Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine is an oil-soluble crystalline solid powder (Melting Point ~80°C), achieving maximal dissolution without crystallization over storage is critical. Incorporating effective polar emollient solvents—such as C12-15 Alkyl Benzoate, Dibutyl Adipate, or Isopropyl Myristate (CAS 110-27-0)—at a solvent-to-BEMT ratio of 4:1 ensures thermodynamic stability across temperature fluctuations (-10°C to 45°C).
Navigating International Chemical Safety & Cosmetic Approval Standards for Enterprise Buyers
Approved under Annex VI of the EU Cosmetic Regulation (EC) No 1223/2009. Allowed at a maximum concentration of up to 10% in leave-on and wash-off formulations. Full EU REACH dossier registration ensures seamless import compliance for European brand owners.
Included in the FDA Over-the-Counter (OTC) Sunscreen Monograph proposed updates (GRASE status evaluation). Frequently targeted for premium prestige cosmetic applications under global distribution frameworks and broad-spectrum export formulations.
Fully listed in China's IECIC (Inventory of Existing Cosmetic Ingredients in China) and NMPA safety standards (up to 10%). Approved by Japan’s PMDA and South Korea’s MFDS for functional photoprotectant and skin barrier formulations.
Established in 2010 and strategically headquartered in the Chemical Industry Park of Jinan City, Shandong Province, JIMPOCHEM CO., LTD spans over 500 acres of advanced industrial chemical production area. We are a dedicated chemical raw material manufacturer integrating R&D, synthetic chemical production, international commercial sales, and deep technical services.
Focusing on high-end fine chemicals, fluorine compounds, and specialized cosmetic raw materials, our state-of-the-art facilities possess comprehensive ISO 9001 quality system certifications and ISO 14001 environmental management credentials. We deliver one-stop chemical procurement solutions to client networks spanning more than 200 countries worldwide.
Robust Supply Chain Metrics Engineered for Large-Scale Global Distribution
Unlocking Synergistic Value Across High-Growth Downstream Consumer & Industrial Sectors
Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine is ideally suited for lightweight daily facial moisturizers, anti-aging creams, and sensitive-skin sunscreens. Its photo-immutability guarantees consistent protection against HEV light and UVA-induced collagen degradation without triggering contact dermatitis or eye irritation.
Engineered for high water and sweat resistance in water-in-oil (W/O) and oil-in-water (O/W) emulsions. When combined with solubilizing esters and co-filters like Ethylhexyl Triazone, BEMT enables the development of non-greasy SPF 50+ / PA++++ formulations tailored for marine, athletic, and high-altitude extreme environments.
Beyond personal care, the triazine core of Bemotrizinol provides exceptional photostabilities to organic polymers, transparent industrial coatings, luxury car paints, and optical films requiring non-yellowing, long-term UV-A shielding under severe environmental conditions.
As global environmental regulations restrict traditional UV filters like Oxybenzone (Benzophenone-3) and Octinoxate due to coral reef bleaching concerns, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine has emerged as the premier eco-friendly alternative.
With its high molecular weight (>600 g/mol) and extremely low water solubility (< 0.05 mg/L at 20°C), Bemotrizinol does not readily penetrate cellular membranes of marine organisms, demonstrating zero bioaccumulation in aquatic flora and fauna. It fully complies with strict environmental standards including the Hawaii Reef Act, Key West bans, and Palau marine protection guidelines.
Expert Guidance for Formulation Chemists, R&D Managers, and Global Procurement Leads
Explore related chemical building blocks, surfactants, and specialty cosmetic ingredients available from our Jinan manufacturing base.
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