Description

1,3:2,4-Di-p-Methylbenzylidene Sorbitol is a high-performance, organogel-forming compound widely recognized as a highly effective clarifying and nucleating agent for polyolefin plastics. Its primary value lies in its ability to significantly enhance the optical clarity, surface gloss, and mechanical properties of polymers by promoting a uniform, fine crystalline structure. This product is essential for manufacturers in the plastics, packaging, and polymer compounding industries seeking to upgrade the performance and appearance of their transparent polypropylene and polyethylene products.

Application

• Polypropylene Clarification: Primary use as a nucleating agent to improve transparency, reduce haze, and increase gloss in clarified polypropylene (PP) for food containers, household items, and medical packaging.
• Polyethylene Modification: Enhances the clarity and stiffness of polyethylene (PE) films and blow-molded articles.
• Polymer Processing Aid: Acts as a processing aid to shorten cycle times and improve dimensional stability during injection molding and extrusion.
• Gelation Agent: Used in the formulation of organogels for personal care products, coatings, and specialty chemical applications.
• Masterbatch Production: A key additive in the manufacture of high-concentration additive masterbatches for simplified downstream compounding.

Basic Information

Product Name	1,3:2,4-Di-p-Methylbenzylidene Sorbitol
CAS No.	54686-97-4
Molecular Formula	C22H26O6
Molecular Weight	386.44 g/mol
Synonyms	DMDBS; 1,3:2,4-Bis(p-methylbenzylidene)sorbitol; p-Methyl-DBS; Millad® 3988; Clarifying Agent 3988; Nucleating Agent for PP; Gelator; Dibenzylidene Sorbitol derivative
EINECS	Contact for details

Quality Control

Our 1,3:2,4-Di-p-Methylbenzylidene Sorbitol is manufactured under a stringent quality management system. Each batch is tested to ensure it meets precise specifications for purity, performance, and consistency, suitable for demanding polymer applications. A comprehensive Certificate of Analysis (COA) documenting key parameters such as assay, melting point, and clarity performance is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the original container tightly sealed to prevent moisture absorption which can affect performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	240 - 250 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.