DINCH Plasticizer (1,2-Cyclohexane dicarboxylic acid diisononyl ester)
CAS 166412-78-8
A non-phthalate, eco-friendly plasticizer used as an alternative to DOP and DINP. DINCH is supplied for applications where low migration is preferred, including medical device and toy applications, with corresponding compliance documents available on request.
Product Overview
DINCH (1,2-cyclohexane dicarboxylic acid diisononyl ester, CAS 166412-78-8) is a non-phthalate plasticizer based on a cyclohexane dicarboxylate ester backbone. It is widely evaluated as an eco-friendly alternative to phthalate plasticizers such as DOP and DINP in flexible PVC formulations.
Because DINCH is not listed on the REACH SVHC Candidate List, it is frequently considered for applications where a non-phthalate plasticizer and a lower migration tendency are preferred, including medical tubing, toys and childcare articles, and food-contact films.
DOBO Chemical supplies DINCH with complete export documentation, including TDS, batch COA and a REACH SVHC statement on request. Grades suitable for medical device and food-contact applications are available, with the corresponding compliance documents (e.g. REACH SVHC statement, food-contact test reports) provided on request.
Key Features
Functional advantages that make DINCH a practical non-phthalate option for flexible PVC
Non-Phthalate Chemistry
DINCH is a cyclohexane dicarboxylate ester plasticizer, formulated without phthalate esters for buyers who prefer a non-phthalate plasticizer system.
Low Migration Tendency
In typical flexible PVC formulations DINCH shows a comparatively lower migration and volatilization tendency than general-purpose phthalate esters such as DOP.
Good PVC Compatibility
Compatible with PVC and PVC/plasticizer blends, supporting efficient plasticizing, good flexibility and stable processing behaviour across common extrusion and calendering lines.
Extraction & Weathering Performance
Offers useful resistance to extraction and weathering, helping finished articles retain flexibility during service life in demanding indoor and outdoor applications.
Documentation for Regulated Applications
Grades suitable for medical device and food-contact applications; corresponding compliance documents (e.g. REACH SVHC statement, food-contact test reports) are available on request.
Technical Parameters
Typical specifications for DINCH plasticizer. Values are typical and are confirmed per batch on the Certificate of Analysis.
| Parameter | Specification / Typical Value |
|---|---|
| Appearance | Clear, colorless liquid |
| Purity (GC) | ≥ 99.5% |
| Ester Content | ≥ 99.0% |
| Molecular Weight | ~ 424 g/mol |
| Viscosity @20°C | ~ 50-70 mPa·s |
| Density @20°C | ~ 0.94-0.96 g/cm³ |
| Acid Value | ≤ 0.1 mg KOH/g |
| Water Content | ≤ 0.1% |
| Color (APHA) | ≤ 50 |
| Flash Point | ≥ 200°C |
| Refractive Index @20°C | ~ 1.46 |
Certificate of Analysis (Sample)
The table below illustrates the structure of a typical batch COA, showing test items, specifications, representative results and test methods.
| Test Item | Specification | Typical Result | Test Method |
|---|---|---|---|
| Appearance | Clear, colorless liquid | Clear, colorless liquid | Visual |
| Purity (GC) | ≥ 99.5% | 99.7% | Gas Chromatography (in-house method) |
| Ester Content | ≥ 99.0% | 99.4% | ASTM D1045 |
| Color (APHA) | ≤ 50 | 20 | ASTM D1209 |
| Acid Value (mg KOH/g) | ≤ 0.1 | 0.03 | ASTM D1045 |
| Water Content (%) | ≤ 0.1 | 0.03 | ASTM E203 (Karl Fischer) |
| Viscosity @20°C (mPa·s) | 50-70 | 58 | ASTM D445 |
| Density @20°C (g/cm³) | 0.94-0.96 | 0.949 | ASTM D4052 |
| Refractive Index @20°C | 1.458-1.464 | 1.461 | ASTM D1218 |
| Flash Point (°C) | ≥ 200 | 218 | ASTM D93 |
COA is issued per batch; sample COA available on request.
Packaging & Logistics
Packaging options can be matched to your order volume and receiving capabilities
200 kg Iron Drum
Standard 200 L iron drum, suitable for small to medium batch production and flexible handling.
1000 kg IBC
Intermediate bulk container for bulk handling with reduced drum handling effort on site.
ISO Tank
ISO tank container for large-volume shipments, typically arranged for high-volume buyers.
Flexibag / Bulk
Flexibag or bulk arrangements can be scheduled on request, subject to the non-dangerous goods classification of the material.
Storage Conditions
- Store in a cool, dry and well-ventilated place
- Keep containers tightly sealed when not in use
- Avoid direct sunlight, moisture and contamination
- Refer to the current TDS for detailed handling and shelf life guidance
Applications
DINCH is used across flexible PVC applications where a non-phthalate, low-migration plasticizer is preferred
Medical Devices
Infusion tubing, medical tubing and sealing components where a non-phthalate plasticizer is preferred, with corresponding compliance documents available on request.
Toys & Childcare Articles
Flexible PVC parts for toys and childcare articles where buyers prefer low-migration, non-phthalate formulations.
Food-Contact Films & Packaging
Flexible films and packaging where grades suitable for food-contact applications are requested, supported by food-contact test reports on request.
Flooring & Wall Panels
Vinyl flooring and wall panel formulations requiring durable flexibility, low migration and stable color over time.
Synthetic Leather & Coatings
Artificial leather, coated fabrics and surface coatings where low migration and weathering resistance are valued.
Wires & Cables
Flexible PVC compounds for wire and cable insulation and sheathing, including applications with low-temperature flexibility needs.
Why DINCH vs DOP / DINP
The comparison below is provided for objective reference. Plasticizer selection always depends on your formulation, processing conditions and the regulatory requirements of your destination market.
| Property | DINCH | DOP (DEHP) | DINP |
|---|---|---|---|
| Chemical Family | Cyclohexane dicarboxylate ester | Phthalate ester | Phthalate ester |
| Migration Tendency | Comparatively lower in typical flexible PVC formulations | Higher migration and volatilization tendency in many applications | Moderate, generally lower than DOP |
| REACH SVHC Status (EC 1907/2006) | Not listed on the REACH SVHC Candidate List; SVHC content < 0.1% w/w | Listed on the REACH SVHC Candidate List (DEHP) | Not listed on the REACH SVHC Candidate List |
| Regulatory Trend | Frequently specified where non-phthalate plasticizers are preferred or required by downstream customers | Subject to increasing restrictions in specific markets and applications | Restricted in certain applications and jurisdictions |
| Typical Application Fit | Medical tubing, toys, food-contact films, flooring and coating systems | General-purpose flexible PVC where regulations permit | General-purpose flexible PVC, wires, cables and flooring |
Regulatory status is subject to change and may differ by jurisdiction. Buyers are responsible for confirming the requirements applicable to their own end use. REACH status can be verified through ECHA.
Frequently Asked Questions
DINCH (1,2-cyclohexane dicarboxylic acid diisononyl ester, CAS 166412-78-8) is a non-phthalate plasticizer used to soften and plasticize PVC. Typical applications include medical tubing, toys and childcare articles, food-contact films and packaging, vinyl flooring and wall panels, synthetic leather and coatings, and wire and cable compounds. It is often selected as a non-phthalate alternative to DOP or DINP where lower migration and a non-phthalate formulation are preferred.
Request a DINCH Plasticizer Quote
Share your destination port and quantity for a competitive FOB/CIF price, MOQ, lead time and COA. Samples and TDS are available for laboratory evaluation.
Related Resources
DOTP (Dioctyl Terephthalate)
Explore another non-phthalate plasticizer option for flexible PVC.
DINP (Diisononyl Phthalate)
Compare DINCH with DINP for your plasticizer selection.
REACH Compliance Guide
Understand REACH SVHC requirements when importing into the EU.
Contact DOBO Chemical
Request a quote, sample, TDS or technical consultation.