Description

Benzene, 1,3-Difluoro-5-(1-Propynyl)- (9Ci) is a specialized fluorinated aromatic building block characterized by its unique difluoro and propynyl substituents. This compound is valued for its role as a key intermediate in advanced organic synthesis, particularly in the development of complex molecules for high-value applications. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors for constructing novel chemical entities.

Application

• Pharmaceutical Intermediate: Serves as a critical synthon in the research and development of new active pharmaceutical ingredients (APIs), especially those requiring fluorinated aromatic cores for enhanced metabolic stability and bioavailability.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and pesticides, where the fluorine atoms and alkyne functionality can impart specific biological activity and environmental persistence profiles.
• Liquid Crystal & OLED Materials: Acts as a building block for fluorinated components in electronic display materials and organic light-emitting diodes (OLEDs), contributing to improved charge transport and thermal stability.
• Polymer & Resin Modifier: Employed to introduce fluorine and alkyne groups into polymer backbones, potentially enhancing material properties like chemical resistance, surface energy, and enabling further functionalization via click chemistry.
• Chemical Research & Development: Utilized in academic and industrial labs for exploring new reaction pathways, catalysis, and the synthesis of complex, multi-functional aromatic compounds.

Basic Information

Product Name	Benzene, 1,3-Difluoro-5-(1-Propynyl)- (9Ci)
CAS No.	153257-97-7
Molecular Formula	C9H5F2
Molecular Weight	151.13 g/mol
Synonyms	1,3-Difluoro-5-(prop-1-yn-1-yl)benzene; 5-(1-Propynyl)-1,3-difluorobenzene; 1,3-Difluoro-5-prop-1-ynylbenzene; 1,3-Difluoro-5-(propynyl)benzene; 3,5-Difluorophenylacetylene (common misnomer, verify structure); Benzene, 1,3-difluoro-5-(1-propynyl)-; 153257-97-7
EINECS	Contact for details

Quality Control

Our Benzene, 1,3-Difluoro-5-(1-Propynyl)- (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and structural confirmation, to ensure consistency and reliability for your synthetic workflows. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, identity, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (typically 15-25°C). Keep away from heat, sparks, and open flames. For long-term storage, consider storing under an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥95.0% (Area %)
Water Content (KF)	≤0.5%

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