High-Purity Ethylaluminum Sesquichloride (EASC) for Polymerization & Fine Chemical Synthesis

Chlorinated Organoaluminum Reagent for Advanced Organic Synthesis

Ethylaluminum Sesquichloride (EASC) CAS 12075-68-2 in labeled amber reagent bottle with TUODA branding and product highlights
Ultra-High Purity Grade

Ethylaluminum Sesquichloride(EASC)

High-Purity Chloroalkylating Agent for Polyolefin Catalyst Systems & Organic Synthesis

Parameter
Specification

Chemical Name

Ethylaluminum Sesquichloride

CAS Number

12075-68-2

Molecular Formula

C₆H₁₅Al₂Cl₃

Molecular Weight

208.27 g/mol

Purity

≥98.0%

Appearance

Clear to light yellow transparent liquid

HIGH CHLOROALKYLATING ACTIVITY

EXCELLENT THERMAL STABILITY

CUSTOMIZED PACKAGING SERVICE

High-Purity Ethylaluminum Sesquichloride

The Gold Standard for Industrial Catalysis

TUODA’s Triethylaluminum is the premier choice in organoaluminum chemistry, designed specifically for precision catalyst applications. With unmatched purity of ≥99.9% and advanced stabilization technology, it delivers superior catalytic performance and process consistency across polymerization and semiconductor industries.

TUODA’s Ethylaluminum Sesquichloride (EASC) is a high-performance organoaluminum compound widely applied in advanced polymerization systems, alkylation reactions, and the synthesis of high-value fine chemicals.

With purity levels exceeding 98%, EASC exhibits strong reactivity and excellent stability under inert conditions. It serves as an effective chloroalkylating agent in both industrial-scale and laboratory-scale synthesis.

Manufactured under GMP-compliant facilities, our EASC is purified via multi-step processes and packed under inert gas to ensure maximum safety and performance for global distribution.

Product Specifications

Industry-Leading Purity & Consistency for Ethylaluminum Sesquichloride

Chemical Properties

Chemical Formula: C₆H₁₅Al₂Cl₃
Molecular Weight: 208.27 g/mol
Purity: ≥98.0%
Appearance: Clear to light yellow liquid
Density: 0.860 g/cm³ @ 25°C

Physical Properties

Boiling Point: 185–195°C (approximate range)
Melting Point: Not applicable (liquid under standard conditions)
Flash Point: 34°C (closed cup)
Viscosity: Moderate viscosity
Solubility: Reacts violently with water; soluble in aliphatic solvents like hexane and toluene

Packaging & Storage

Available Sizes: 100g, 500g, 1kg, 5kg
Container Type: Sealed stainless steel or borosilicate ampoules
Storage Temp: –10°C to +25°C
Shelf Life: 12–18 months
Handling: Must be stored under nitrogen or argon; avoid air/moisture
All specifications are validated under ISO-based QA systems. Customized COA/TDS/SDS are available on request.

Core Advantages

Why TUODA’s Ethylaluminum Sesquichloride (EASC) Is Trusted by Leading Chemical & Polymer Producers

Ultra-High Purity

Industry-grade EASC with ≥98.0% purity ensures high reaction reliability and minimizes contamination risks during catalyst preparation and alkylation applications.

Enhanced Stability

TUODA’s EASC is securely stabilized under inert atmosphere and packaged in moisture-tight containers to maintain performance during long-term storage and transport.

Superior Performance

EASC acts as a highly reactive chloroalkylating agent with exceptional selectivity, enabling efficient transformations in polymer and fine chemical processes.

Expert Technical Support

Backed by over a decade of organoaluminum chemistry experience, our team provides dedicated support for EASC handling, customization, and application development.

Discover how high-purity EASC can enhance your advanced synthesis and catalyst system performance.

Application Areas

Ethylaluminum Sesquichloride (EASC) CAS: 12075-68-2 Versatile Role in Modern Industrial Processes

Polymerization Catalysis

Primary application as co-catalyst in Ziegler-Natta polymerization systems, providing balanced activity and excellent polymer property control.

Friedel-Crafts Catalysis

Used as a Lewis acid catalyst in various alkylation and acylation reactions, offering moderate activity with improved selectivity profiles.

Organic Synthesis

Facilitates various organic transformations including rearrangements, cyclizations, and selective carbon-carbon bond formations.

Fine Chemical Production

Acts as a versatile Lewis acid catalyst and mild alkylating agent in the synthesis of specialty chemicals and intermediates.

Petrochemical Processing

Utilized in oligomerization of olefins and as a catalyst component in various petrochemical processes requiring moderate Lewis acidity.

Research & Development

Essential reagent in academic and industrial research for studying Lewis acid catalysis and developing novel coordination chemistry.

Polymerization Catalysis

EASC in Polymerization Catalysis

Ethylaluminum Sesquichloride (EASC) plays a crucial role in modern polymerization processes, particularly in Ziegler-Natta catalyst systems for the production of polyolefins with controlled properties.

Key Benefits in Polymerization:

  • Balanced Lewis acidity for optimal catalyst activation
  • Excellent control of polymer molecular weight distribution
  • Enhanced catalyst efficiency through effective chlorination
  • Improved polymer morphology and bulk density

Our high-purity EASC offers an optimal balance of alkyl and chloride content, providing superior catalyst activation while maintaining excellent control over polymer properties.

Case Study: HDPE Production Optimization

A leading polyethylene manufacturer implemented TUODA's EASC in their HDPE catalyst system and achieved a 22% increase in catalyst productivity while improving polymer bulk density by 15%, resulting in significant production cost savings.

Friedel-Crafts Catalysis

EASC in Friedel-Crafts Catalysis

Ethylaluminum Sesquichloride (EASC) serves as an effective Lewis acid catalyst in Friedel-Crafts reactions, offering moderate activity with improved selectivity compared to traditional aluminum chloride catalysts.

Applications in Friedel-Crafts Chemistry:

  • Alkylation of aromatic compounds with enhanced regioselectivity
  • Acylation reactions with reduced side product formation
  • Isomerization of alkyl aromatics
  • Controlled oligomerization of olefins

Our ultra-high purity EASC delivers consistent catalytic activity with improved selectivity profiles, making it ideal for applications requiring moderate Lewis acidity with controlled reactivity.

Case Study: Specialty Alkylbenzene Production

A specialty chemical producer switched to our EASC for their alkylation process and achieved 92% para-selectivity compared to 78% with traditional catalysts, while reducing catalyst consumption by 35% and minimizing equipment corrosion.

Organic Synthesis

EASC in Organic Synthesis

Ethylaluminum Sesquichloride (EASC) serves as a versatile reagent in organic synthesis, enabling various transformations including rearrangements, cyclizations, and selective carbon-carbon bond formations.

Synthetic Applications:

  • Carbocyclization reactions of unsaturated substrates
  • Rearrangement of epoxides to allylic alcohols
  • Selective alkylation of functionalized compounds
  • Coordination-assisted transformations

Our high-purity EASC provides reliable performance in complex synthetic sequences, with consistent reactivity and selectivity profiles critical for reproducible results.

Case Study: Complex Intermediate Synthesis

A pharmaceutical intermediates manufacturer utilized our EASC in a key rearrangement step, achieving 88% yield with 95% stereoselectivity, significantly improving upon their previous method that provided only 65% yield with mixed stereochemistry.

Fine Chemical Production

EASC in Fine Chemical Production

Ethylaluminum Sesquichloride (EASC) is extensively used in fine chemical synthesis as a versatile Lewis acid catalyst and mild alkylating agent for various transformations requiring moderate activity and good selectivity.

Applications in Fine Chemicals:

  • Synthesis of specialty alkylated intermediates
  • Production of modified terpenes and fragrances
  • Preparation of functionalized materials
  • Catalyst for selective transformations

Our EASC provides consistent reactivity with balanced Lewis acidity, critical factors in the production of high-value fine chemicals with precise specifications.

Case Study: Fragrance Component Manufacturing

A leading fragrance ingredient producer implemented our EASC in their synthesis of a key cyclization intermediate, achieving 94% purity with a single recrystallization and reducing production costs by 28% compared to their previous process.

Petrochemical Processing

EASC in Petrochemical Processing

Ethylaluminum Sesquichloride (EASC) plays important roles in various petrochemical processes, particularly in oligomerization of olefins and as a catalyst component in processes requiring moderate Lewis acidity.

Petrochemical Applications:

  • Oligomerization of ethylene and propylene
  • Production of synthetic lubricant base stocks
  • Catalyst component for isomerization processes
  • Promoter in certain refining applications

Our industrial-grade EASC delivers reliable performance in demanding petrochemical environments, with the stability and balanced reactivity required for continuous processes.

Case Study: Alpha-Olefin Production

A petrochemical company implemented our EASC in their alpha-olefin production process, achieving 18% higher selectivity to desired carbon number range and reducing catalyst-related impurities by 40%, significantly improving downstream processing efficiency.

Research & Development

EASC in Research and Development

Ethylaluminum Sesquichloride (EASC) is an essential reagent in academic and industrial research laboratories, enabling the exploration of Lewis acid catalysis and coordination chemistry with a reagent offering balanced reactivity.

R&D Applications:

  • Investigation of Lewis acid catalyzed transformations
  • Development of novel coordination complexes
  • Study of alkylation mechanisms
  • Exploration of structure-activity relationships in catalysis

We offer research-grade EASC in various package sizes suitable for laboratory use, with comprehensive safety documentation and technical support.

Case Study: Novel Catalyst Development

A university research group utilized our high-purity EASC to develop a novel supported catalyst system for selective olefin transformations, achieving unprecedented activity-selectivity combinations that led to a patent application and industrial partnership.

Discover how our high-purity Ethylaluminum Sesquichloride (EASC) can enhance your specific application

Chemical Properties & Specifications

Industry-Leading Ethylaluminum Sesquichloride (EASC) with High Purity, Stability, and Reactivity

EASC Molecular Structure

Chemical Formula: C₆H₁₅Al₂Cl₃
Molecular Weight: 208.79 g/mol
CAS Number: 12075-68-2

Product Specifications

Parameter
Standard Grade
High-Purity Grade
Ultra-Pure Grade

EASC Content

≥ 96.0%

≥ 98.0%

≥ 99%

Al Content

≥ 19.0%

≥ 20.5%

≥ 21.5%

Chloride (Cl) Content

≥ 10.0%

≥ 11.0%

≥ 11.5%

Free Al

< 0.3%

< 0.1%

< 0.05%

Iron

≤ 20 ppm

≤ 10 ppm

≤ 1 ppm

Heavy Metals (total)

≤ 50 ppm

≤ 20 ppm

≤ 5 ppm

Physical Properties

Property
Value

Appearance

Clear to pale yellow liquid

Density

0.910 g/cm³ at 25℃

Boiling Point

Approx. 180–190℃

Vapor Pressure

0.12 kPa at 20℃

Flash Point

20℃ (closed cup)

Solubility

Soluble in aromatic and aliphatic solvents like hexane, toluene; reacts violently with water

Reactivity & Handling

Pyrophoric Nature

Highly pyrophoric—ignites spontaneously in air. Requires strict inert gas protection (nitrogen or argon) during storage and use.

Water Reactivity

Reacts violently with water/moisture, releasing flammable gases. Must be kept away from any moisture sources and humid environments.

Chemical Compatibility

Compatible with most hydrocarbon solvents and stainless steel systems. Avoid contact with oxidants and halogenated compounds.

Thermal Stability

Stable under controlled conditions (−10℃ to +30℃). Begins to degrade and release gas above 130℃. Use temperature-controlled logistics for safety.

Packaging & Storage Information

Standard Packaging

  • 400 kg stainless steel cylinders
  • 1,600 kg ISO containers
  • 20,000 kg tank trucks

Storage Requirements

  • Store in cool, dry area (-10°C to +30°C)
  • Keep away from heat, sparks, and direct sunlight
  • Maintain inert gas blanket (nitrogen)
  • Segregate from incompatible materials

Documentation

  • Certificate of Analysis (CoA)
  • Safety Data Sheet (SDS)
  • Technical Data Sheet (TDS)
  • Handling & Storage Guidelines

Need Technical Information?

Our technical team is available to provide detailed specifications, safety information, and handling guidelines for our Ethylaluminum Sesquichloride products.

Quality Control & Assurance

Rigorous Testing and Strict Quality Management for Consistent Excellence

Raw Material Inspection

Each batch of incoming raw materials undergoes rigorous testing to verify purity and compliance with specifications before entering production.

In-Process Monitoring

Continuous monitoring throughout the production process with real-time analytics to ensure consistency and detect any deviations immediately.

Final Product Testing

Comprehensive analysis of each production batch against all specified parameters using advanced analytical techniques.

Performance Validation

Application-specific testing to verify product performance in simulated customer processes, ensuring it meets real-world requirements.

Documentation & Certification

Comprehensive documentation package including Certificate of Analysis, traceability records, and quality assurance documentation.

Quality Standards & Certifications

ISO 9001:2015

Our quality management system is certified to ISO 9001:2015, ensuring consistent processes and continuous improvement.

ISO 14001:2015

Environmental management certification demonstrating our commitment to sustainable manufacturing practices.

OHSAS 18001

Occupational Health and Safety Management System certification for safe handling of hazardous materials.

REACH Registered

Compliant with European Union's Registration, Evaluation, Authorization and Restriction of Chemicals regulation.

Lab technician performing quality control test on chemical sample at TUODA factory laboratory

State-of-the-Art Quality Control Laboratory

Our dedicated quality control laboratory is equipped with advanced analytical instrumentation to ensure product consistency and purity for Ethylaluminum Sesquichloride (EASC):

Gas Chromatography (GC)

For precise determination of EASC purity and impurity profiles

Inductively Coupled Plasma (ICP-MS)

To detect trace metal impurities down to parts-per-billion (ppb) levels.

Karl Fischer Titration

For high-sensitivity moisture analysis – critical for maintaining stability of moisture-sensitive aluminum alkyls.

Titrimetric Method

For accurate measurement of active ethyl and chloride contents, ensuring formulation consistency.

NMR Spectroscopy

For structural verification and long-term stability tracking in R&D batches.

Our Quality Commitment

100% Batch Testing

Full Traceability

Detailed Documentation

Secure Chain of Custody

Customer Quality Assurance Program

We partner with our customers to ensure our products meet their specific quality requirements through our comprehensive quality assurance program:

We develop custom specifications to match your unique process requirements.

Tailored quality standards are provided based on your end-use application.

We offer formulation flexibility to meet specialized technical demands.

Each product is adjusted to ensure compatibility with your production line.

Regulatory and safety parameters are aligned with your regional compliance.

Regulatory and safety parameters are aligned with your regional compliance.

Technicians in cleanroom suits operating stainless steel reactor and control panel in pharmaceutical facility

Ready to experience our quality difference?

Frequently Asked Questions About Ethylaluminum Sesquichloride (EASC)

Still have questions? Here are answers to the most common queries buyers ask when sourcing high-purity EASC.

Our MOQ starts from 100g, suitable for pilot projects, lab trials, and commercial testing. Bulk quantities from 1kg to drum-scale are available upon request.

 

Yes. We offer small-volume EASC samples (typically 50–100g) for evaluation. All samples are provided with COA and MSDS, packed under nitrogen to ensure safe transport.

 

Absolutely. We provide tailored purity grades (≥96% to ≥99%) and flexible packaging including sealed stainless steel bottles, glass ampoules, and PTFE-lined containers. Let us know your usage environment and handling protocol.

Yes. Ethylaluminum Sesquichloride is classified as a pyrophoric liquid and must be handled under UN 3394, Class 4.2 regulations. We partner with certified DG logistics teams for global delivery with proper inert gas sealing and labeling.

All shipments come with complete documentation:

  • ISO 9001 compliant QA system

  • COA, MSDS, TDS, and Certificate of Origin

  • Customized regulatory support (REACH/transport declaration available upon request)

 

Store in a cool, dry place under nitrogen or argon. Avoid exposure to moisture, air, or direct sunlight. Use only with compatible solvents and equipment (e.g. stainless steel, PTFE).

 

We maintain a ready stock of standard-grade and high-purity EASC for export. Orders typically ship within 3–5 working days, subject to DG clearance and packaging preparation.

 

Yes. Our team offers:

  • Application-specific guidance (e.g. polymer catalyst formulation)

  • Full document set for regulatory compliance

  • 24–48h response for technical inquiries, including hazard assessments or storage compatibility

 
  • Ultra-low impurity levels (≤5 ppm metals, ≤0.1% free Al)

  • Inert gas packaging for global transit

  • Custom R&D or industrial-grade matching

  • Proven track record with polyolefin catalyst manufacturers and fine chemical producers worldwide

 

Can’t find your question here? Our team is ready to assist you 1-on-1.

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