Dimethyl phthalate (CAS 131-11-3), commonly abbreviated as DMP, is the shortest-chain member of the ortho-phthalate ester family: the dimethyl ester of phthalic acid, with the molecular formula C₁₀H₁₀O₄ and a molecular weight of 194.18 g/mol. It presents as a colourless, transparent, oily liquid with a slight aromatic odour, a boiling point of approximately 282 °C, a flash point of 146 °C, a density of 1.19 g/cm³, and miscibility with ethanol, ether, acetone, cyclohexanone, methyl ethyl ketone, methanol, n-butanol and toluene, while remaining insoluble in water and petroleum ether. Its commercial identity is defined by a structural fact that is routinely misread in the market: DMP is not a PVC plasticizer. Its one-carbon ester arms are too short to solvate PVC resin effectively, and that is precisely why DMP occupies a different regulatory and application space from its medium- and long-chain relatives—DBP, BBP, DEHP, DIBP and DnOP—which are the phthalates that carry the SVHC listings and the Annex XVII restrictions. DMP’s actual industrial role is narrower and more specific: it is the plasticizer for cellulose acetate and cellulose acetate-butyrate films, varnishes, transparencies and moulding powders; the solvent and phlegmatiser that desensitises methyl ethyl ketone peroxide (MEKP) for safe handling; and a solvent for mosquito-repellent oil, polyvinyl fluoride coatings and select specialty formulations. The market reflects both the durability of those niche functions and the structural headwinds facing the phthalate family as a whole. Market sizing is genuinely divergent: one research stream values the global DMP market at USD 110 million in 2025, forecast to decline to USD 81.5 million by 2032 at a −4.2% CAGR; a narrower high-purity scope places the 2024 market at USD 111 million, declining to USD 81.9 million by 2031 at −4.4%; and a broader plasticizer-oriented scope estimates the 2025 market at USD 1.0 billion, growing at 3.4% CAGR to approximately USD 1.2 billion by 2030. The divergence reflects scope definition rather than disagreement on direction: DMP is a mature, regulation-shaped specialty ester whose volume future depends on MEKP demand, cellulose ester film production and cost-sensitive industrial applications, and whose value future depends on the supplier’s ability to document the regulatory distinction that separates DMP from the restricted phthalates. The qualifying question for buyers is therefore not “what does a tonne of DMP cost” but “can my supplier prove, lot by lot, that the material is DMP and not a restricted homologue, and can they support the specific end-use documentation my market requires.”
Core Application Fields and Demand Architecture
DMP demand concentrates in four functional arenas where its solvency, low viscosity, high flash point and cellulose-ester compatibility deliver performance that the regulated phthalates cannot legally provide and that non-phthalate alternatives cannot match at equivalent cost: MEKP peroxide phlegmatisation and organic peroxide formulations, cellulose ester plastics and films, specialty solvent and carrier applications, and cost-sensitive industrial plasticizer uses.
In MEKP peroxide phlegmatisation and organic peroxide formulations, DMP is the solvent and desensitiser that makes methyl ethyl ketone peroxide safe to transport, store and dose. MEKP in its undiluted form is shock- and heat-sensitive; DMP reduces the active oxygen concentration to a manageable level and provides a compatible liquid medium in which the peroxide remains stable. This application accounts for more than 50% of global DMP demand, making the peroxide industry the single most important demand anchor. The specification logic here is critical: water content must be low, acidity must be controlled, and the lot must be free of contaminants that could catalyse peroxide decomposition. A DMP lot that carries excess water or acidic impurities can shorten the shelf life of the MEKP formulation or, in the worst case, compromise its thermal stability. This is the segment where the consequences of an off-spec lot are most severe and where lot-level certificate-of-analysis documentation is non-negotiable.
In cellulose ester plastics and films, DMP functions as a plasticizer for cellulose acetate, cellulose acetate-butyrate and cellulose nitrate. It is used, often in combination with diethyl phthalate, in the production of cellulose acetate films, varnishes, transparencies and moulding powders, where it improves film formation, adhesion, water resistance, light stability and thermal stability. A smaller volume goes into nitrocellulose production and as an extender for nitrile rubber plasticizers. The specification logic is compatibility and colour: a DMP lot that carries colour bodies or high volatility will produce hazy films or dimensional instability, and the cellulose ester converter discovers the problem after casting, not in incoming QC.
In specialty solvent and carrier applications, DMP serves as a solvent for mosquito-repellent oil, polyvinyl fluoride paints, MEKP-based systems and DDT formulations. It is also used in solid rocket propellants, lacquers, safety glasses, rubber coating agents and certain pesticide formulations. These applications are small in absolute volume but specification-intensive, and they value DMP’s combination of high flash point, low viscosity and broad resin compatibility.
In cost-sensitive industrial plasticizer applications, DMP competes with other short-chain esters in applications where performance requirements are moderate and price sensitivity is high. The wire and cable segment, soft PVC films, hoses and profiles, and soft PVC coatings are identified as the larger application landscape for DMP-type plasticizers in the broader market scope, although the specific DMP volume in these applications is constrained by the availability of lower-cost alternatives and by substitution pressure from non-phthalate plasticizers. The construction sector remains the largest end-use consumer in the broader plasticizer scope, at 30–35% of total demand, followed by automotive, electronics and packaging.
Regulatory Profile: The Short-Chain Exception—Not an SVHC, Not Annex XVII Restricted, but FDA Food-Contact Authorisation Revoked
DMP’s regulatory position is the single most misunderstood fact about the molecule, and it is the fact that determines whether a buyer can use it at all in a given market. DMP is not one of the “regulated phthalates.” It is not on the REACH Candidate List (SVHC). It is not listed in REACH Annex XIV (Authorisation List). It is not restricted under REACH Annex XVII, including the phthalate entry 51/52 that applies to DBP, BBP, DEHP, DIBP and DnOP in toys and childcare articles at 0.1%. It is not prohibited under the EU Cosmetics Regulation, unlike DBP, DEHP, DnOP, BBP and DCHP. China’s Safety Technical Standards for Cosmetics (2015 edition) also does not list DMP among prohibited or restricted phthalates, and DMP is not subject to the 0.1% China toy standard GB 6675.4. The EU REACH registration status is registered. These facts place DMP outside the regulatory perimeter that has closed around the medium- and long-chain ortho-phthalates, and they are the reason DMP remains commercially viable for industrial applications where the regulated phthalates have been eliminated.
That favourable position has limits, and buyers must understand them precisely. The U.S. FDA food-contact authorisation for DMP was revoked by a final rule effective 20 May 2022 (87 FR 31080), and DMP is not among the eight ortho-phthalates still authorised as plasticizers for food-contact use. DMP is not listed in Annex I of Regulation (EU) No 10/2011, meaning it is not authorised for EU food-contact plastic applications. California Proposition 65 listing is not recorded in the available regulatory data, and the U.S. TSCA inventory status is not consistently captured in public summaries—buyers with U.S.-facing programmes should obtain a direct, lot-specific TSCA statement from the supplier rather than relying on a catalogue field. The CLP classification includes Aquatic Acute 3 (H402, harmful to aquatic life) and, depending on the supplier’s SDS, Eye Irrit. 2B and STOT SE 3 (H335, respiratory irritation). DMP is readily biodegradable and is not classified as an endocrine disruptor under REACH Article 57(f) in the available SDS documentation.
The practical consequence is a “non-restricted but monitored” status. Regulators and downstream customers increasingly apply generic phthalate screening methods that do not distinguish DMP from its restricted homologues, and testing laboratories that apply a broad phthalate screen without DMP-specific calibration risk misclassifying compliant material. For the buyer, the supplier’s ability to provide a DMP-specific certificate of analysis, a clear statement that the product is CAS 131-11-3 and not a restricted phthalate, and a current SDS that reflects the actual hazard profile is the qualification differentiator.
Global Supply Structure and Manufacturer Differentiation
Global DMP supply is moderately concentrated and structurally weighted toward Asia. The top five manufacturers hold approximately 68% of global revenue, and China is the largest producer with a share above 53–55% of global output. The producer landscape identified in market reporting includes Hangzhou Qianyang Technology, KLJ Group, Runtai New Material, Aarti Industries, BASF, Fujian Mingfeng, Daihachi Chemical Industry, Indo-Nippon Chemical, Yuanli Chemical, Demon Chemicals, Ostend Basic Chemicals and Nishant Organics, alongside regional producers serving domestic cost-sensitive markets. Product segmentation is dominated by purity above 99.5%, which holds a share above 86%, reflecting the fact that the MEKP and cellulose-ester applications require high-purity material and that low-purity DMP is increasingly difficult to place in regulated supply chains.
Differentiation operates on three axes that matter more to a peroxide formulator or a cellulose-film converter than the headline assay. The first is water and acidity control for MEKP compatibility. MEKP formulations are sensitive to moisture and acidic contaminants, and a DMP lot that carries water above the formulation tolerance or acidity above the specification can reduce peroxide stability and shelf life. A supplier that controls water and acidity within narrow limits and documents them lot by lot can serve MEKP customers that a general-purpose DMP supplier cannot. The second axis is DMP-specific identity and regulatory documentation. Because DMP sits outside the restricted phthalate perimeter, the supplier must be able to demonstrate that the lot is CAS 131-11-3 and not a restricted homologue, and must provide a clear statement of the REACH Annex XVII, SVHC and food-contact status applicable to the buyer’s market. A supplier that offers a generic “phthalate” SDS or certificate without DMP-specific identity data creates a qualification risk. The third axis is grade and packaging flexibility. DMP moves in drums, IBCs and ISO tanks, and the high-purity grade is the dominant commercial specification. A supplier that can offer consistent ≥99.5% material across package sizes, and support the buyer with Russian-language SDS and lot-level analytical data, reduces the qualification burden for Russian and EAEU buyers who are importing a specialty ester that has no large-scale domestic production at grade.
Regional Demand Dynamics
DMP demand follows the geography of peroxide production, cellulose ester film manufacturing and cost-sensitive industrial plasticizer consumption rather than the geography of phthalic anhydride or methanol feedstock.
Asia-Pacific is the largest and most dynamic region, accounting for 40–50% of global consumption and hosting the dominant producer base. China alone produces approximately 42% of the world’s DMP, and the region’s demand is driven by MEKP and organic peroxide production for composites, coatings and adhesives, by cellulose ester film and moulding powder production, and by cost-sensitive industrial plasticizer applications in construction, automotive and packaging. The region’s market share and growth rate are both the highest among all regions, although the overall DMP market is contracting in value terms in the narrower scopes, reflecting substitution pressure and regulatory caution rather than a collapse in industrial demand.
North America and Europe are mature, regulation-intensive markets. North American demand is anchored in MEKP peroxide formulations for composites and marine applications, in cellulose ester films and specialty coatings, and in niche industrial plasticizer uses. The U.S. market operates with a food-contact prohibition that limits DMP in food-adjacent applications, but industrial uses remain viable. Europe’s demand is shaped by REACH documentation requirements, by the absence of Annex XVII restriction for DMP itself, and by a strong preference for suppliers that can clearly differentiate DMP from restricted phthalates. Both regions are growing slowly or contracting in volume, with value concentrated in high-purity MEKP-grade and cellulose-ester-grade material.
Russia and the EAEU form an import-dependent contour with a specific trade structure. Russian DMP supply relies on imports, and China is a key source. Trade data record Chinese DMP exports to Russia at 1,000 kg for 24,900 RMB in one recorded shipment, and India is also identified as an exporter to Russia under HS 2917.39.40. Russian demand is concentrated in MEKP and peroxide formulations, cellulose ester and specialty coatings, and industrial plasticizer applications. The Russian sanitary-hygienic framework sets an ambient-air daily average limit (ПДК с.с.) of 0.3 mg/m³ and a working-area limit consistent with the hazard class assigned to the substance; imported material must be accompanied by a Russian-language SDS that states the applicable limits and the required ventilation measures. The practical constraint for Russian buyers is not the regulatory status of DMP itself—which is favourable relative to the restricted phthalates—but the documentation depth required to prove that the imported material is DMP and not a restricted homologue, and to support the specific end-use qualification. XINCHEM positions its DMP supply around this requirement, combining ≥99.5% high-purity material with DMP-specific certificate-of-analysis data, clear regulatory distinction statements, and Russian-language SDS support, so that Russian and EAEU buyers can qualify imported material without reconstructing the compliance case internally.
Future Outlook and Strategic Imperatives
The DMP market will not grow like a commodity plasticizer. The narrower market scopes point to contraction in value at −4.2% to −4.9% CAGR through the early 2030s, while the broader plasticizer scope suggests modest growth at 3.4% driven by cost-sensitive industrial applications in developing regions. The quality of the opportunity is therefore not in volume expansion but in defending the specific functions that DMP alone performs—MEKP phlegmatisation and cellulose ester plasticization—and in documenting the regulatory distinction that keeps DMP usable where its homologues are not.
Three structural forces will shape competition. First, regulatory differentiation will remain the core commercial fact. DMP is not an SVHC and not Annex XVII restricted, but the market increasingly applies generic phthalate screening that misclassifies it. Suppliers that can prove DMP identity lot by lot, and that can explain the regulatory position in language a buyer’s compliance team can use, will be preferred over those that sell “phthalate” as an undifferentiated category. Second, MEKP and peroxide demand will remain the volume anchor. More than half of DMP consumption is tied to MEKP and organic peroxide formulations, and that demand is structurally stable because MEKP remains a workhorse initiator for composites, marine and construction applications. Suppliers that control water and acidity for MEKP compatibility will hold the highest-value accounts. Third, substitution pressure will narrow the low-value periphery. Non-phthalate plasticizers and alternative benzoate and citrate esters are taking share in cost-sensitive plasticizer applications, and the DMP market will progressively concentrate in the applications where its specific solvency, high flash point and cellulose-ester compatibility are difficult to replace.
For Russian and EAEU buyers, the strategic implication is that DMP procurement should be treated as an identity-and-documentation partnership rather than a price comparison. A lot that cannot be shown to be DMP—or that carries water or acidity outside the MEKP specification—does not simply cost the price of the drum; it can destabilise a peroxide formulation or fail a cellulose-film cast. A shipment that arrives without a Russian-language SDS or without a DMP-specific regulatory statement can be delayed at customs or rejected by a downstream customer’s compliance team. The lowest-risk supplier is the one that can match the grade to the application, document water and acidity lot by lot, provide a clear statement of the DMP regulatory distinction, and support the buyer with Russian-language documentation and reliable logistics for a specialty ester that is entirely import-dependent in the region—the position XINCHEM occupies for DMP in the Russian and EAEU market.
Shanghai XinChem Co., Ltd. (XinChem)
As a world-leading supplier of organic chemicals, Shanghai XinChem Co., Ltd. (XinChem) offers dimethyl phthalate (CAS 131-11-3, DMP) in ≥99.5% high-purity specification, serving MEKP and organic peroxide formulators, cellulose acetate and cellulose ester film producers, specialty coating and solvent users, and cost-sensitive industrial plasticizer customers. Our DMP is supplied with controlled water and acidity, lot-specific GC identity data, and the regulatory documentation—including a clear statement of the non-SVHC, non-Annex XVII restricted status, the revoked FDA food-contact authorisation, and Russian-language SDS—that DMP-specific qualification and cross-border supply require.
Technical and Quality Advantages
MEKP-Grade Water and Acidity Control: DMP is supplied with water and acidity controlled to the limits relevant to MEKP and organic peroxide formulations, where moisture and acidic contaminants can reduce peroxide stability and shelf life. Lot-level certificate-of-analysis data covers the parameters that determine whether the lot will perform in a peroxide phlegmatisation system or introduce a stability problem the formulator discovers weeks later.
DMP-Specific Identity Documentation: Because DMP sits outside the restricted phthalate perimeter, XinChem provides a certificate of analysis that explicitly identifies the material as CAS 131-11-3 and reports purity by GC, rather than a generic “phthalate” specification. This DMP-specific identity data supports the buyer’s own compliance assessment and reduces the risk of misclassification by generic phthalate screening.
Regulatory Distinction Statement: Safety data sheets are available in Russian and English, with documentation covering the H402 aquatic hazard classification, the non-SVHC and non-Annex XVII status, the revoked FDA food-contact authorisation, and the Russian ambient-air limit of 0.3 mg/m³. XinChem provides a clear written statement of the regulatory distinction between DMP and the restricted phthalates, so that the buyer’s compliance team can document the basis for use.
High-Purity Grade and Supply Reliability: DMP is available in ≥99.5% purity across drum, IBC and ISO tank quantities, with scheduling structured to accommodate both qualification volumes and recurring contract quantities. The high-purity grade, which represents the dominant commercial specification, is supplied from a consistent production and analytical platform to maintain lot-to-lot consistency in the applications where DMP’s solvency and compatibility are most demanding.
Packaging and Logistics Flexibility
DMP is available in 200 kg drums and IBCs for mid-scale peroxide, cellulose ester and specialty solvent operations, and in ISO tanks and bulk quantities for larger industrial consumers. For Russia and EAEU destinations, XinChem arranges logistics with Russian-language SDS and certificate-of-analysis support, reducing clearance friction for a specialty ester that is imported rather than domestically produced at grade, and for which the documentation of DMP identity and regulatory status is a condition of downstream qualification.
Application Support and Supply Reliability
XinChem’s technical team assists with grade selection for MEKP and organic peroxide formulations, cellulose acetate and cellulose ester film production, specialty coatings and solvent applications, and cost-sensitive industrial plasticizer uses, and with the water, acidity and DMP-identity documentation that peroxide-grade and cellulose-ester qualification demands. Supply schedules accommodate both qualification orders and contract volumes, with stock and logistics planning aligned to the phthalic anhydride and methanol feedstock dynamics and the trade flows that shape DMP availability.
Why Choose XinChem
Expertise: Deep experience in short-chain phthalate esters and specialty plasticizer-solvents, with application knowledge spanning MEKP phlegmatisation, cellulose ester films and coatings, and industrial plasticizer systems.
Consistency: Control of water, acidity and purity against the MEKP-grade and cellulose-ester-grade specifications—the parameters that determine whether DMP stabilises a peroxide formulation or destabilises it, and whether a cellulose film casts cleanly or hazes.
Compliance Readiness: Documentation structured around the DMP-specific regulatory distinction—not an SVHC, not Annex XVII restricted, but food-contact authorisation revoked in the U.S. and EU—with Russian-language SDS, lot-level GC identity data and a written regulatory distinction statement.
Responsiveness: Direct technical and commercial access, with order structures from qualification volumes to bulk and contract supply.
Contact us now to discuss your dimethyl phthalate requirements and request a specification sheet or qualification sample.
Website: www.xinchem.com
Email: sales1@xinchem.com
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Post time: Nov-11-2026