Cyclopropylacetylene

Zhejiang Realsun Chemical Co., Ltd. is one of the most reliable manufacturers and suppliers of cyclopropylacetylene in China. If you're going to buy high quality cyclopropylacetylene, welcome to get pricelist and free sample from our factory. Good service and low price are available.

 

Cyclopropylacetylene (CPA) is a specialty chemical building block containing both a highly reactive alkyne group and a rigid cyclopropyl structure.
This combination makes CPA a valuable intermediate for selected pharmaceutical, agrochemical and advanced materials synthesis routes where conventional chemical raw materials cannot readily provide the same molecular structure.
Liansheng currently supplies industrial-grade Cyclopropylacetylene with a purity of ≥99.5% for commercial applications.

 

 

Item	Specification
Product Name	Cyclopropylacetylene
Common Name	Cyclopropylacetylene
Abbreviation	CPA
CAS No.	6746-94-7
Molecular Formula	C₅H₆
Appearance	Colorless, free-flowing liquid
Commercial Grade	Industrial Grade
Assay Purity	≥99.5%

CPA is primarily positioned as a specialty building block for pharmaceutical and agrochemical synthesis, with additional applications in selected advanced-material development projects.

 

 

Each commercial batch is subject to quality inspection and can be supplied with a batch-specific COA.

Test Item	Industrial Grade Specification
Assay Purity	≥99.5%
Water Content	≤200 ppm
Density at 25°C	0.780–0.782 g/cm³
Boiling Point at Atmospheric Pressure	51°C
Free Amine Residue	≤100 ppm

For customers with additional impurity limits or application-specific analytical requirements, the target specification can be reviewed before commercial qualification.

 

 

 

 

1. Pharmaceutical Intermediate Manufacturing
Cyclopropylacetylene is used as a specialty building block in the synthesis of selected pharmaceutical intermediates, including routes associated with antiviral, anticancer and respiratory antiviral compounds.
Its cyclopropyl-alkyne structure can be incorporated into downstream synthesis routes and may help simplify certain synthetic sequences.
Application Considerations
Raw material impurity levels can affect downstream pharmaceutical synthesis, particularly when customers operate under strict internal impurity specifications.
Lower-quality commercial materials may require additional purification before use, increasing processing time, material loss and production cost.
The industrial-grade CPA supplied by Liansheng is manufactured with controlled purity, water content and free amine residue for industrial synthesis applications.
Customers with specific pharmaceutical impurity requirements are encouraged to provide their target specifications for technical evaluation before commercial use.

 

2. Triazole Agrochemical Manufacturing
Cyclopropylacetylene is used as an upstream building block in selected agrochemical synthesis routes, including applications involving:
• Cyproconazole
• Pyrimidine fungicide intermediates
• Prothioconazole-related synthesis
• Other specialty fungicide intermediates
The cyclopropyl structure can be incorporated into downstream active-molecule synthesis.
Application Considerations
Consistent raw material quality is important for industrial agrochemical manufacturing, particularly where downstream synthesis and product registration require controlled impurity profiles.
Batch-to-batch variation in water, amine residues or other impurities may affect downstream processing.
The controlled industrial-grade specification is intended to support stable production and export-oriented agrochemical manufacturing.

 

3. Advanced Polymer & Specialty Material Synthesis
Cyclopropylacetylene can also be used in selected advanced material applications, including:
• UV-curable resin systems
• Modified acrylic resins
• Polyimide-related materials
• Specialty industrial coatings
• High-performance adhesives
• High-temperature engineering plastics
The alkyne functionality can participate in crosslinking and modification chemistry, while the cyclopropyl structure provides a specific structural element for specialty material design.
Potential applications include materials requiring improved temperature resistance, hydrolysis resistance and outdoor aging performance.
Actual suitability depends on the customer's formulation and synthesis process and should be validated through laboratory or pilot-scale testing.

 

4. Electronic Materials - Laboratory Evaluation
Small quantities of Cyclopropylacetylene may be used for laboratory research involving lithium battery materials, PCB-related materials and other electronic-material development projects.
This application is currently limited to R&D and small-scale evaluation.
The industrial-grade product is not positioned as an electronic-grade material for semiconductor, display or other large-scale electronic manufacturing processes.

 

 

Documentation for International Customers
Standard export documentation can be provided with commercial shipments, including:
• Chinese and English GHS-compliant SDS/MSDS
• Batch-specific COA
• Complete analytical data and test records
• Certificate of Origin
• Manufacturer qualification documents
The production facility maintains the required environmental assessment, production safety and hazardous chemical production qualifications.
Overseas customers can arrange supplier qualification and on-site factory audits according to their internal EHS and procurement procedures.

 

 

Integrated Production
Unlike trading companies that purchase intermediates from external manufacturers and repackage the material, Liansheng operates as a source manufacturer.
Cyclopropylacetylene production is supported by the company's own Cyclopropanone production line, providing an integrated upstream supply structure.
This helps reduce dependence on external intermediate suppliers and provides greater control over production consistency.

Supply Advantages
 Integrated Raw Material Supply
Key upstream materials are supplied through the company's own production facilities, reducing exposure to external raw material shortages and short-term price fluctuations.
 Controlled Storage
The production site maintains low-temperature, explosion-proof storage tanks for inventory management.
Controlled storage helps minimize volatility and moisture-related changes during storage.
 Automated Production
The production line uses DCS-controlled automated synthesis and distillation.
Key quality parameters are monitored throughout production to maintain consistent purity and impurity levels between batches.
 Export Capability
The company has established procedures for international hazardous chemical shipments.
For standard export orders, hazardous chemical declaration, customs procedures and loading can generally be completed within 7–10 days, subject to order quantity, documentation and shipping schedules.

 

 

Cyclopropylacetylene is volatile and sensitive to storage conditions. Export packaging is therefore designed to minimize exposure to light, moisture and air.
 R&D Samples
• 20 kg light-protected HDPE plastic drums
• Fully sealed packaging
• Moisture- and leak-resistant design
 Standard Export Orders
• 210 L heavy-duty corrosion-resistant light-protected drums
• Net weight: 150 kg per drum
• Sealed gasket system for leak protection
 Large-Volume Orders
• 1,000 kg sealed IBC containers
• Insulated ISO tank containers available for suitable bulk orders
Packaging specifications can be reviewed according to the customer's storage, transportation and handling requirements.

 

 

Transportation Protection
Export packaging is designed specifically for a volatile liquid and uses sealed, light-protective and corrosion-resistant construction.
Under normal ocean transportation conditions of approximately 45 days, the packaging is designed to minimize leakage and significant changes in product purity, water content and color when properly handled.

Hazardous Chemical Shipping
A dedicated export team supports hazardous chemical declaration, customs documentation and shipping procedures.
International transportation options can include:
• Full-container-load ocean freight
• LCL ocean freight
• Air freight for samples
• Other transportation solutions according to destination and regulatory requirements

Storage
Store in a cool, dry and explosion-proof environment with containers tightly sealed.
Temperature and humidity should be controlled to minimize evaporation and moisture-related changes.

 

 

Application	Current Supply Status
Pharmaceutical Intermediate Synthesis	Industrial Grade ≥99.5%
Agrochemical Manufacturing	Industrial Grade ≥99.5%
Advanced Materials	Industrial Grade ≥99.5%, subject to process validation
Electronic Materials R&D	Small-scale samples only
Electronic Grade	Not available for mass production
Pharmaceutical Grade	Not available for mass production

The current commercial product is industrial grade only.
For customers requiring ultra-high-purity material, limited customized samples may be available for laboratory evaluation. Long-term bulk supply of electronic-grade or pharmaceutical-grade material is not currently available.

 

 

For quotation and technical evaluation, overseas buyers are recommended to provide:
• Required purity
• Application
• Estimated order quantity
• Packaging requirements
• Destination country
• Required quality documentation
• Specific impurity limits, if applicable
• Estimated annual demand
For pharmaceutical and agrochemical projects with defined internal specifications, customers are encouraged to provide their target analytical requirements before commercial qualification.

 

 

 

Hot Tags: cyclopropylacetylene, China cyclopropylacetylene manufacturers, suppliers, factory, E2 Special drugs for resisting HIV, 4 Chloro 2 trifluoroacetyl aniline Hydrochloride, E2 for anti tumor drug intermediate, E2 Pharmaceutical Intermediate, Gamma Butyrolactone high boiling point solvent, Gamma Butyrolactone 96 48 0