DHP 507 (CAS: 36265-41-5), chemically known as Didodecyl 1,4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylate, is a high-performance stabilizer specifically engineered for the protection of PVC polymers. By utilizing a sophisticated nitrogen-containing ring structure and extended carbon chains, it provides exceptional dispersion and stability, making it an essential additive for enhancing the thermal and weather resistance of plastic materials.
As a professional solution for PVC stabilization, DHP 507 is particularly effective in synergistic combination with Calcium organic systems and other mixed metal stabilizers. Even at low dosages (0.05% to 0.2%), it significantly prevents polymer degradation and aging by capturing free radicals, ensuring that transparent applications maintain their clarity while rigid and soft PVC products achieve superior durability across automotive, electronic, and medical fields.
| CAS Number | 36265-41-5 | Appearance | Light yellow green powder |
|---|---|---|---|
| Assay | 97.0% Min | Melting Point | 93.0-96.0℃ |
| Loss on Drying | 0.5% Max | Sulfate Ash | 0.2% Max |
| Methenamine Content | 0.25% Max | Black Spots | 5 Max |
| Black Dots (>0.5mm) | 3 Max | EINECS NO | 252-939-2 |
Efficiently captures free radicals and blocks chain reactions to prevent premature polymer degradation.
Significantly improves heat resistance for wires, cables, and automotive interior components.
Enhances the performance of Calcium organic and mixed metal stabilizing systems at low dosages.
Optimized formula ensures no negative impact on transparency in high-end clear PVC applications.
Applicable across rigid PVC, soft PVC, composite materials, and medical-grade plastics.
The long carbon chain structure ensures uniform distribution within the polymer matrix.
Standard 25Kg/bag with inner PE and outer woven bags; custom packaging available.
Stored in cool, dry, ventilated areas away from sunlight, rain, and fire sources.
Strict assay control (min 97%) to ensure consistency across all production batches.
Trusted Class A supplier for industry giants like Baerlocher, Chemson, and Sun Ace.
Optimized for building materials, electronic wires, automotive parts, and medical devices.
Professional guidance on proportioning and addition based on specific polymer types.
| Feature Metric | Standard Stabilizers | DHP 507 Solution |
|---|---|---|
| Dosage Requirement | Higher dosage needed | Low (0.05%~0.2%) |
| Transparency | Potential haze | Maintains high clarity |
| Weather Resistance | Standard degradation | Significantly enhanced |
| Synergy Effect | Limited compatibility | High (Ca-Zn systems) |
| Processing Cost | Higher waste/attrition | Optimized production cost |
DHP 507 acts as a high-efficiency co-stabilizer that captures free radicals and blocks chain reactions, thereby preventing the degradation and aging of PVC polymers during processing and use.
Unlike some additives, DHP 507 is specifically designed not to affect clarity, making it ideal for transparent PVC applications where optical purity is required.
The recommended usage level ranges from 0.05% to 0.2%, depending on the substrate, specific processing conditions, and the final performance requirements of the product.
It is widely used in the construction industry (rigid and soft PVC), electronics (weather-resistant cables), automotive (interior parts), and medical devices (safety-critical plastics).
Yes, DHP 507 is highly recommended for enhancing the stabilizing properties of Calcium organic systems and other mixed metal systems, providing a powerful synergistic effect.
It should be stored in a cool, dry, and well-ventilated place. It is crucial to avoid direct sunlight and rain and keep the product away from any fire sources.
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