{"id":600,"date":"2026-01-26T04:03:06","date_gmt":"2026-01-26T04:03:06","guid":{"rendered":"https:\/\/www.julanchem.com\/?p=600"},"modified":"2026-01-26T04:04:40","modified_gmt":"2026-01-26T04:04:40","slug":"1324-bis34-dimethylobenzylideno-sorbitolcas135861-56-2","status":"publish","type":"post","link":"https:\/\/www.julanchem.com\/index.php\/2026\/01\/26\/1324-bis34-dimethylobenzylideno-sorbitolcas135861-56-2\/","title":{"rendered":"1,3:2,4-Bis(3,4-dimethylobenzylideno) sorbitol(CAS:135861-56-2)"},"content":{"rendered":"\n

Product Overview<\/h2>\n\n\n\n

1,3:2,4-Bis(3,4-dimethylbenzylidene)-D-Sorbitol<\/strong> (CAS:135861-56-2) is a high-efficiency sorbitol-based clarifying nucleating agent<\/strong> designed to significantly improve the optical clarity, crystallization rate, and surface gloss<\/strong> of polypropylene (PP) and polyethylene (PE) products.<\/p>\n\n\n\n

Compared with conventional dibenzylidene sorbitol (DBS) nucleating agents, this advanced derivative offers higher thermal stability, lower blooming tendency, and superior long-term transparency<\/strong>, making it ideal for thin-wall injection molding and high-end transparent plastic applications<\/strong>.<\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

Key Benefits & Performance Advantages<\/h2>\n\n\n\n
    \n
  • \u2714 Excellent Transparency Enhancement<\/strong>
    Reduces haze and improves light transmission in PP products<\/li>\n\n\n\n
  • \u2714 Fast Crystallization Rate<\/strong>
    Shortens molding cycle time and improves production efficiency<\/li>\n\n\n\n
  • \u2714 High Thermal Stability<\/strong>
    Suitable for high-temperature processing of polypropylene<\/li>\n\n\n\n
  • \u2714 Low Blooming & Migration<\/strong>
    Ensures clean surface appearance and long-term optical stability<\/li>\n\n\n\n
  • \u2714 Low Dosage, High Efficiency<\/strong>
    Typical addition level: 0.1\u20130.3 wt%<\/strong><\/li>\n<\/ul>\n\n\n\n

    Typical Applications<\/h2>\n\n\n\n

    Polypropylene (PP)<\/h3>\n\n\n\n
      \n
    • Transparent food containers<\/li>\n\n\n\n
    • Medical syringes and disposable medical devices<\/li>\n\n\n\n
    • Thin-wall injection molded packaging<\/li>\n\n\n\n
    • Household and consumer plastic products<\/li>\n<\/ul>\n\n\n\n

      Polyethylene (PE)<\/h3>\n\n\n\n
        \n
      • HDPE \/ LLDPE films<\/li>\n\n\n\n
      • Packaging materials requiring improved surface gloss<\/li>\n<\/ul>\n\n\n\n

        Polymer Modification<\/h3>\n\n\n\n
          \n
        • PP compounds and masterbatches<\/li>\n\n\n\n
        • PP\/PE blends for enhanced appearance and stiffness<\/li>\n<\/ul>\n\n\n\n

          Technical Specifications (Typical Values)<\/h2>\n\n\n\n
          Item<\/th>Specification<\/th><\/tr><\/thead>
          Chemical Name<\/td>1,3:2,4-Bis(3,4-dimethylbenzylidene)-D-Sorbitol<\/td><\/tr>
          Chemical Type<\/td>Sorbitol-based clarifying nucleating agent<\/td><\/tr>
          Appearance<\/td>White to off-white crystalline powder<\/td><\/tr>
          Odor<\/td>Odorless<\/td><\/tr>
          Melting Point<\/td>\u2265 240 \u00b0C (decomposes)<\/td><\/tr>
          Solubility<\/td>Insoluble in water<\/td><\/tr>
          Volatility<\/td>Very low<\/td><\/tr>
          Thermal Stability<\/td>Excellent<\/td><\/tr>
          Recommended Dosage<\/td>0.1 \u2013 0.3 wt%<\/td><\/tr>
          Processing Method<\/td>Direct addition or masterbatch<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

          Note: Specifications may be customized upon request.<\/em><\/p>\n\n\n\n

          Packaging & Supply<\/h2>\n\n\n\n
            \n
          • Standard packaging: 10 kg bag or carton<\/strong><\/li>\n\n\n\n
          • Customized packaging available<\/li>\n\n\n\n
          • Global export support with full documentation<\/li>\n<\/ul>\n\n\n\n

            <\/p>\n","protected":false},"excerpt":{"rendered":"

            Product Overview 1,3:2,4-Bis(3,4-dimethylbenzylidene)-D-Sorbitol (CAS:135861-56-2) is a high-efficiency sorbitol-based clarifying nucleating agent designed to significantly improve the optical clarity, crystallization rate,…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[29],"tags":[],"class_list":["post-600","post","type-post","status-publish","format-standard","hentry","category-blogging"],"yoast_head":"\n1,3:2,4-Bis(3,4-dimethylobenzylideno) sorbitol(CAS:135861-56-2) - Julan Chemical<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.julanchem.com\/index.php\/2026\/01\/26\/1324-bis34-dimethylobenzylideno-sorbitolcas135861-56-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"1,3:2,4-Bis(3,4-dimethylobenzylideno) sorbitol(CAS:135861-56-2) - 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