1,5-Dibromopentane

1,5-Dibromopentane_111-24-0_High Purity Dibromopentane_Pharmaceutical Intermediate

Core Product Parameters:

1,5-Dibromopentane (also known as pentamethylene dibromide), CAS: 111-24-0, molecular formula C5H10Br2, molecular weight 229.94. This product is a colorless to light yellow transparent liquid at room temperature and is an important dihaloalkane. Due to the presence of two reactive bromine atoms and a specific five-carbon chain structure, it exhibits high reactivity and is widely used as a pharmaceutical intermediate and organic synthesis building block.

Specifications and Quality Control:

We provide high-purity 1,5-dibromopentane with a standard specification of ≥99.0% (GC). Through strict quality control, the product features low color, low moisture (≤500 ppm), low acid value, and low free bromine content. Each batch is analyzed by gas chromatography (GC) to ensure stable and reliable product quality, meeting various needs from laboratory research to industrial production.

Main Application Areas:

1,5-Dibromopentane is an important fine chemical intermediate, with its main applications including:

Pharmaceutical Intermediates: Used in the synthesis of key intermediates for antitumor drugs, nervous system drugs, and other important pharmaceuticals.

Pesticide Synthesis: Serves as a key raw material in the synthesis of pesticides such as insecticides and herbicides.

Functional Materials: Used in the preparation of functional materials like liquid crystal materials and polymer cross-linking agents.

Organic Synthesis: Acts as an important cyclization reagent in the synthesis of heterocyclic compounds.

Research Reagents: Widely used in organic synthesis research at universities and research institutions.

Fragrance Synthesis: Used in the synthesis of certain specialty fragrance compounds.

Usage, Storage, and Safety Guidelines:

This product should be handled in a well-ventilated environment, preferably in a fume hood. Store sealed, away from light, in a cool and dry place. Operators must wear protective gloves, goggles, and other personal protective equipment to avoid contact with skin and eyes. This product is irritating to the eyes and skin. Please carefully review the MSDS (Material Safety Data Sheet) before use for specific safety operating procedures.

Packaging, Logistics, and Technical Services:

We offer various packaging specifications: 250kg/drum for industrial use, and 100ml, 500ml reagent-grade packaging, with customized packaging services available. Each batch comes with a COA (Certificate of Analysis), MSDS (Material Safety Data Sheet), and other quality documents. Third-party test reports can be provided upon request. Our professional technical team is available to provide product application and technical support.

Supplier Strength: Why Do Global Customers Choose Yancheng Longsheng Chemical?

Focus and Experience: Since its establishment in 1991, Longsheng Chemical has focused for over 30 years on the R&D, production, and global sales of fine chemical intermediates such as brominated and chlorinated alkanes, hydroxy esters, and aromatic hydrocarbons. As a key R&D and production base for organic bromine series products in China, our deep process knowledge ensures the highest product quality.

Production Capacity and Strategic Layout: The company headquarters and core production base are located in Yancheng, Jiangsu Province. To meet the growing global demand and enhance supply chain resilience, we established a wholly-owned subsidiary in Hebi City, Henan Province, in 2024—Hebi Haige Longsheng New Materials Co., Ltd. This modern production base covers 370 acres with a total investment of 1 billion CNY. Upon full completion, the company's total annual production capacity will exceed 50,000 tons. This strategic layout significantly enhances our capacity guarantee, delivery stability, and market responsiveness in the high-end intermediate sector, aiming to build a world-class fine chemical new materials industrial platform with "smart manufacturing + green environmental protection."

International Standard Quality System: The company strictly implements and maintains the ISO 9001:2015 quality management system and ISO 14001:2015 environmental management system. It has passed the internationally recognized SEDEX (SMETA) social responsibility audit, and many of its products have completed formal registration under the EU REACH regulation, ensuring smooth access to the international market. Our quality control center is equipped with advanced testing instruments such as gas chromatographs (GC), automatic Karl Fischer moisture titrators (KF Titrator), and UV spectrophotometers, establishing a comprehensive QA/QC system for full-process quality traceability and strict control from raw material intake to production process control and finished product release.

Global Market Recognition and Cooperative Reputation: Longsheng Chemical's products and services have gained widespread trust from global customers. Our products are steadily exported to Europe, North America, Japan, South Korea, Taiwan (China), India, Southeast Asia, and other regions and countries. We have established long-term, stable strategic partnerships with many international large-scale pharmaceutical companies and multinational chemical groups. We understand that every cooperation is the beginning of responsibility.

Our Commitment:

Yancheng Longsheng Chemical Co., Ltd. not only sells products but is also committed to providing stable and reliable high-quality products, competitive prices, fast and efficient logistics response, and professional and timely technical services. We look forward to becoming your trusted, long-term strategic partner in the field of fine chemical intermediates. Welcome to inquire and discuss cooperation.