Description

2-Ethynylazulene is a specialized organic compound featuring a unique azulene core functionalized with an ethynyl group, making it a valuable building block in advanced materials science. This compound matters for its distinctive photophysical and electronic properties derived from the non-alternant hydrocarbon structure of azulene. It is primarily needed by researchers and manufacturers in the fields of organic semiconductors, non-linear optics (NLO), and as a precursor for synthesizing novel dyes and functional polymers.

Application

• Organic Electronic Materials: Serves as a key synthon for developing novel organic semiconductors and charge-transport materials for OLEDs and OFETs.
• Non-Linear Optical (NLO) Materials: Used in research for creating compounds with enhanced second- and third-order optical non-linearity due to its extended π-conjugation.
• Functional Dye Synthesis: Acts as a precursor for synthesizing near-infrared (NIR) absorbing and fluorescent dyes with unique color properties.
• Coordination Chemistry & Catalysis: Employed as a ligand precursor for constructing novel organometallic complexes and catalysts.
• Polymer Science: Incorporated into polymer backbones via click chemistry or polymerization reactions to create materials with tailored optical and electronic characteristics.
• Academic & Industrial R&D: Utilized as a reference standard and building block in fundamental research on azulene chemistry and advanced material properties.

Basic Information

Item	Details
Product Name	2-Ethynylazulene
CAS No.	278615-29-5
Molecular Formula	C₁₂H₈
Molecular Weight	152.19 g/mol
Synonyms	2-Ethynylazulene; Azulene, 2-ethynyl-; 2-Ethynylbicyclo[5.3.0]decapentaene; 1-Ethynylazulene (registry number refers to 2-substituted isomer); (Azulen-2-yl)ethyne
EINECS	Contact for details

Quality Control

Our 2-Ethynylazulene is produced and handled under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specifications such as purity (by HPLC), identity confirmation (by NMR, IR), and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). This material is light-sensitive (store away from light). For long-term storage, consider storing under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	Dark blue to purple crystalline solid or powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥95% (Typical grades: 95%, 97%, 99%)
Melting Point	Contact for details

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