Butyl bromide

1-Bromobutane_109-65-9_High-Purity n-Butylating Reagent_Grignard Reaction Raw Material

Core Product Parameters:

1-Bromobutane, also known as n-butyl bromide, has the CAS registry number 109-65-9, with the molecular formula C₄H₉Br and a molecular weight of 137.02. It is a colorless to pale yellow transparent liquid and is an important medium-chain bromoalkane. Due to its high reactivity and cost-effectiveness, it is widely used as an efficient n-butylating agent and the preferred raw material for preparing n-butylmagnesium bromide, making it an indispensable key building block in organic synthesis.

Specifications and Quality Control:

We offer various specifications of 1-bromobutane products, including standard grades ≥99.0% (high-purity grade) and ≥99.5% (pharmaceutical grade). Through strict distillation purification and process quality control, the product exhibits excellent characteristics such as low color, low moisture (e.g., ≤0.05%), low free acid, and low impurity content (monitored by GC). It is specifically designed for moisture- and impurity-sensitive reactions (e.g., Grignard reactions), ensuring high reaction yields and product purity, with batch consistency guaranteeing process stability and scalability for customers.

Main Application Areas:

1-Bromobutane is a versatile intermediate with broad applications, including:

Grignard Reagent Synthesis: It is the most commonly used and important raw material for preparing n-butylmagnesium bromide (n-BuMgBr), used in constructing carbon-carbon bonds.

Pharmaceutical and Agrochemical Intermediates: As an n-butylating agent, it is used in synthesizing various drug molecules (e.g., non-steroidal anti-inflammatory drugs) and agrochemical active ingredients.

Fine Chemicals and Fragrances: Used in the production of dyes, fragrances (synthesizing fruity aromas), and as modifiers and initiators in polymerization reactions.

Organic Synthesis and Research: Widely applied in various alkylation reactions in universities, research institutions, and corporate R&D centers.

Usage, Storage, and Safety Guidelines:

This product should be handled in a well-ventilated environment. For moisture- and oxygen-sensitive reactions such as Grignard reactions, it must be conducted under an inert gas atmosphere (e.g., argon, high-purity nitrogen), and the raw materials must be kept dry. Store sealed, protected from light, in a cool, dry place. Operators must wear protective gloves, goggles, and protective clothing to avoid inhalation of vapors or contact with skin and eyes. For detailed safety operating procedures, first aid measures, and transportation requirements, please carefully review and follow the latest version of the MSDS (Material Safety Data Sheet) provided with the product.

Packaging, Logistics, and Technical Services:

We offer highly flexible packaging solutions: industrial-scale supply is available in 250kg/drum packaging, suitable for large-scale production. To meet R&D and pilot production needs, we also supply reagent-grade fluorinated bottles in small packages such as 100ml and 500ml, and provide professional repackaging services. Each batch comes with complete quality documentation, including COA (Certificate of Analysis), MSDS (Material Safety Data Sheet), and third-party authoritative test reports upon request. Our professional technical service team offers comprehensive technical consultation and support, from product selection and application guidance to process optimization.

Supplier Strength: Why 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 bromo- and chloroalkanes, hydroxy esters, and aromatic hydrocarbons. As a key R&D and production base for organic bromine series products in China, our deep process knowledge is the strongest guarantee of product quality.

Production Capacity and Strategic Layout: The company headquarters and core production base are located in Yancheng City, Jiangsu Province. To meet the growing global market 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 new modern production base covers 370 acres with a total investment of 1 billion CNY. Upon full completion and operation, the company’s total annual production capacity will exceed 50,000 tons. This strategic layout significantly enhances our capacity assurance, delivery stability, and rapid market response capabilities in high-end intermediates, 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 products have completed formal registration under the EU REACH regulation, ensuring smooth access to international markets. Our quality control center is equipped with advanced testing instruments such as gas chromatographs (GC), automatic Karl Fischer moisture titrators, 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 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, 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.