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Dibenzoylmethane (DBM), identified chemically as 1,3-diphenyl-1,3-propanedione (CAS Number: 120-46-7; EC Number: 204-398-9), is an organic β-diketone derivative that plays a crucial role as an eco-friendly heat co-stabilizer in halogenated polymer formulations, most notably Polyvinyl Chloride (PVC), and serves as an indispensable building block in organic synthesis for UV filters like Avobenzone.
The molecular structure of DBM ($C_{15}H_{12}O_2$, Molecular Weight: 224.25 g/mol) exhibits a pronounced keto-enol tautomerism. The enol form forms strong intramolecular hydrogen bonds and chelates seamlessly with transition and main-group metal ions (such as $Zn^{2+}$, $Ca^{2+}$, and $Mg^{2+}$). This chemical capability makes DBM a vital additive for suppressing initial thermal discoloration ("zinc burning") during PVC thermal processing, effectively replacing toxic heavy-metal stabilizers (lead and cadmium) globally.
| Parameter / Specification | Industrial Heat Stabilizer Grade | Cosmetic / Fine Chemical Grade | Testing Methodology Standard |
|---|---|---|---|
| Appearance | White to light yellow crystalline powder | Pure white micro-crystalline powder | Visual Inspection |
| Chemical Purity (GC/HPLC) | ≥ 99.0% | ≥ 99.5% | Chromatography (ISO 1100) |
| Melting Point Range | 76.0 °C – 78.5 °C | 77.5 °C – 79.0 °C | Capillary Tube / DSC |
| Loss on Drying (Moisture) | ≤ 0.30% | ≤ 0.10% | Karl Fischer (GB/T 6283) |
| Ash Content / Residue | ≤ 0.10% | ≤ 0.05% | Gravimetric High-Temp Furnace |
| Heavy Metals (as Pb) | ≤ 10 ppm | ≤ 2 ppm | ICP-MS Spectrometry |
| Volatile Organic Compounds (VOC) | Ultra-low volatile emission | Odourless / Zero solvent residue | Headspace GC-MS |
The global Dibenzoylmethane market is undergoing a structural expansion driven by environmental regulatory shifts and high-performance material requirements. According to industrial intelligence, the global market valuation for DBM is projected to expand at a CAGR of 6.2% over the next decade, propelled by three dominant global macro-trends:
Strict environmental regulations (EU REACH Annex XVII, RoHS 3.0, and China’s Green Manufacturing Directives) have accelerated the phase-out of lead-based stabilizers in rigid PVC pipes, window profiles, and automotive interiors. DBM combined with Calcium-Zinc (Ca/Zn) complex soaps has emerged as the definitive non-toxic standard.
Global cosmetics brand owners require ultra-pure DBM as an essential organic intermediate for synthesizing 4-tert-Butyl-4'-methoxydibenzoylmethane (Avobenzone), the primary broad-spectrum UVA absorber used in commercial sunscreens, anti-aging creams, and daily personal care formulations.
The medical plastic sector requires non-leaching, non-toxic heat stabilization for transparent PVC medical tubing, blood bags, and diagnostic devices. High-purity DBM provides non-yellowing characteristics under gamma and ethylene oxide (EtO) sterilization routines.
In PMMA, ABS, and outdoor powder coatings, DBM acts as an synergistic UV light stabilizer, preventing polymeric degradation, color shifting, and micro-cracking caused by prolonged solar irradiance.
Understanding the exact chemical interaction of Dibenzoylmethane in various processing environments allows formula engineers to optimize dosage and reduce operational total cost of ownership (TCO).
During high-temperature extrusion or injection molding of rigid PVC (180°C – 210°C), thermal degradation causes the elimination of HCl, forming conjugated polyene sequences that turn the plastic yellow, red, and eventually black. DBM operates via a dual-action mechanism:
In fine chemical synthesis, high-purity DBM serves as the critical precursor for manufacturing organic sunscreens. By reacting Dibenzoylmethane with specific alkylating reagents, chemical plants produce cosmetic-grade Avobenzone capable of absorbing UV rays in the 310–400 nm region. Low trace metal impurity (ICP-MS verified) in DBM is vital to prevent color degradation in final cosmetic creams.
In transparent PVC films, food-grade packaging sheets, and synthetic rubbers (such as NBR and SBR), DBM is utilized alongside secondary antioxidants to preserve optical transparency, prevent surface blooming, and ensure long-term thermal stability during vulcanization processes.
Located in the Chemical Industry Park of Jinan City, Shandong Province, JIMPOCHEM CO., LTD operates an advanced chemical manufacturing complex spanning over 500 acres. Established in 2010 with over 16 years of deep operational experience, JIMPOCHEM integrates advanced R&D, automated crystallization technology, continuous reaction systems, and eco-friendly waste management.
Our digitalized DCS (Distributed Control System) production lines monitor reaction temperatures, pressure thresholds, and feed rates with millimeter precision, ensuring consistent batch-to-batch chemical purity above 99.5% with zero human error.
Adhering to strict ISO 9001 and ISO 14001 guidelines, our central analytical laboratory is equipped with High-Performance Liquid Chromatography (HPLC), Gas Chromatography-Mass Spectrometry (GC-MS), and Differential Scanning Calorimetry (DSC) for batch tracing.
In accordance with global dual-carbon mandates, JIMPOCHEM has integrated zero-emission wastewater recovery systems and advanced catalytic gas oxidizers, providing our partners with eco-friendly chemical raw materials that pass strict EU environmental audits.
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.
When evaluating global DBM suppliers and manufacturers, procurement directors must evaluate technical capabilities, supply continuity, and compliance documentation to minimize commercial risks:
Ensure the supplier guarantees batch purity ≥99.0% (Industrial) or ≥99.5% (Cosmetic) with low moisture (≤0.1%). Request GC/HPLC chromatograms along with Certificate of Analysis (COA) for every batch.
Verify that DBM exhibits minimal weight loss at high processing temperatures (up to 220°C). Low volatile organic content prevents bubbling and structural defects in extruded PVC goods.
Standard industrial packaging includes 25 kg multi-wall kraft paper bags with inner PE liners or 500 kg super sacks. Check palletization options, moisture-proof shrink wrapping, and container loading capacity (e.g., 12 MT to 14 MT per 20' FCL).
Confirm full REACH registration for EU shipments, compliance with US TSCA regulations, and availability of Safety Data Sheets (SDS) in multi-language GHS formats.
Technical and commercial clarity for procurement teams, formulators, and plant supervisors:
We are committed to providing integrated "R&D - production - application - service" solutions for industries such as pharmaceuticals, daily chemicals, rubber and plastics, coatings, building materials, electronics, and new energy.
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.
Direct procurement solutions backed by ISO certification, full product traceability, and expert technical support.
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