Bastone Plasticizer DEHCH (Bis(2-Ethylhexyl) Cyclohexane-1,2-Dicarboxylate)

CAS 84731-70-4;

Packaging: IBC drum; Flexi bag

DEHCH (Bis(2-ethylhexyl) cyclohexane-1,2-dicarboxylate) is a premium non-phthalate, eco-friendly plasticizer designed for high-grade PVC applications. As a hydrogenated derivative of DEHP, DEHCH delivers excellent plasticizing performance while meeting the strictest global regulatory requirements for food contact, medical devices, and children’s products.

Description

DEHCH provides outstanding compatibility with PVC resins and offers several performance advantages over traditional phthalate plasticizers. Low volatility ensures long-term stability in finished products. Excellent thermal stability makes DEHCH suitable for high-temperature processing methods including calendering, extrusion, and injection molding. The low migration rate of DEHCH meets the demanding requirements of food-contact and medical-grade applications.

As a non-phthalate plasticizer, DEHCH complies with REACH, RoHS, and FDA food-contact regulations, making it the preferred choice for manufacturers transitioning away from phthalate-based formulations.

Specifications

Plasticizer Name

DEHCH (Bis(2-ethylhexyl) cyclohexane-1,2-dicarboxylate)

CAS

84731-70-4

Appearance

Colorless, clear liquid

Purity content, %

≥99.5

Color, pt-co rimetric

≤15

Density, 20g/cm3

0.950-0.965

Acid value, mgKOH/100g

≤0.1

Moisture content, %

≤0.1

Packaging

200kg/drum, 1000kg/IBC drum, 23 tons/ Flexi bag

Factory and Activities

Why DEHCH: The Safer Alternative to Phthalate Plasticizers

Traditional phthalate plasticizers like DOP (DEHP), DBP, and BBP face growing global restrictions due to endocrine disruption and reproductive toxicity risks. DEHCH eliminates these concerns at the molecular level — the hydrogenation process removes the phthalate-inducing aromatic structure entirely, making DEHCH a fundamentally safer chemistry.

DEHCH also outperforms common DOP replacements. Compared with DOTP and DINCH, DEHCH offers approximately twice the plasticizing speed, better shore hardness efficiency, lower haze, and DOP-level migration resistance — all while remaining completely phthalate-free. DEHCH is a true drop-in replacement requiring minimal reformulation.

Split-screen comparison showing two identical clear liquid samples in laboratory beakers, with Stone TXIB and Eastman TXIB labels
Modern quality control laboratory with technician analyzing TXIB samples using advanced testing equipment

Regulatory Compliance and Global Certifications

In August 2023, the European Commission authorized DEHCH for food-contact PVC under Regulation (EU) 2023/1627, listing DEHCH in Annex I of EU Plastics Regulation (EU) No 10/2011 with a migration limit of 0.050 mg/kg. DEHCH has also passed US FDA safety assessments for food-contact use in plastic wraps, bottle caps, and sealing liners.

DEHCH passes 16P restricted phthalate testing, RoHS screening, and SVHC evaluation under REACH. SGS third-party toxicity testing confirms DEHCH safety for children's toys and sensitive consumer products. This multi-market certification allows manufacturers to use DEHCH across the EU, North America, and Asia-Pacific without additional compliance barriers.

Superior Processing and Performance Characteristics

DEHCH absorbs into PVC resin faster than DOTP and DINCH, reducing fusion time, processing temperatures, and energy costs. DEHCH achieves target hardness at lower loading levels, cutting raw material consumption. Low volatility minimizes plasticizer loss during calendering and extrusion, while low migration prevents surface bloom over the product lifecycle.

DEHCH demonstrates high UV stability and strong tolerance to both heat and cold, maintaining color and flexibility under prolonged outdoor exposure. DEHCH also delivers strong alkaline resistance, low kerosene extraction, and minimal silica migration — meeting demanding performance benchmarks for food-contact, medical, and industrial PVC applications.

Split-screen comparison showing two identical clear liquid samples in laboratory beakers, with Stone TXIB and Eastman TXIB labels

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