Description

Benzene, 1-Fluoro-3-(1-Methyl-1-Propenyl)-, (E)- (9Ci) is a specialized fluorinated aromatic building block with the CAS number 158440-79-0. This compound is valued for its unique structure, which combines a fluorine substituent with an (E)-configured propenyl side chain, making it a versatile intermediate for advanced synthesis. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical and agrochemical sectors for constructing complex molecules, including potential active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of novel active pharmaceutical ingredients (APIs), particularly where the introduction of a fluorine atom or a specific olefin geometry is required for bioactivity or metabolic stability.
• Agrochemical Synthesis: Used in the creation of advanced herbicides, fungicides, and insecticides, where its fluorinated aromatic core can enhance compound efficacy and environmental profile.
• Liquid Crystal & OLED Materials: Acts as a precursor in the synthesis of fluorinated organic compounds for electronic applications, such as liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs).
• Advanced Polymer Chemistry: Employed as a monomer or modifying agent to incorporate fluorine and aromatic functionality into specialty polymers, improving chemical resistance and thermal stability.
• Organic Synthesis & Catalysis Research: A valuable substrate in academic and industrial research for studying cross-coupling reactions, fluorination chemistry, and stereoselective transformations.
• Flavor & Fragrance Industry: Potential use as an intermediate for synthesizing complex aromatic compounds used in high-value fragrance and flavor formulations.

Basic Information

Product Name	Benzene, 1-Fluoro-3-(1-Methyl-1-Propenyl)-, (E)- (9Ci)
CAS No.	158440-79-0
Molecular Formula	C10H11F
Molecular Weight	150.19 g/mol
Synonyms	(E)-1-Fluoro-3-(1-methylprop-1-en-1-yl)benzene; 3-Fluoro-α-methylstyrene (E-isomer); 1-Fluoro-3-[(1E)-1-methyl-1-propen-1-yl]benzene; (E)-3-(1-Fluorophenyl)-2-butene; 1-Fluoro-3-[(E)-1-methylprop-1-enyl]benzene; Benzene, 1-fluoro-3-(1-methyl-1-propenyl)-, (E)-; (E)-1-Fluoro-3-(1-methylpropenyl)benzene
EINECS	Contact for details

Quality Control

Every batch of Benzene, 1-Fluoro-3-(1-Methyl-1-Propenyl)-, (E)- (9Ci) is produced and controlled under a strict quality management system. Our products undergo rigorous analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and isomer specification compliance. A comprehensive Certificate of Analysis (COA) detailing batch-specific results is provided with each shipment to guarantee traceability and consistency for your critical R&D and scale-up processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and oxidizing agents. For long-term storage, maintaining the container under an inert atmosphere (e.g., nitrogen or argon) is recommended to preserve product integrity. Recommended storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Isomeric Purity ((E)-isomer by GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.