550477

3,9-Dodecadiyne

97%

• Linear Formula: CH₃CH₂C≡C(CH₂)₄C≡CCH₂CH₃
• CAS Number: 61827-89-2
• Molecular Weight: 162.27
• MDL number: MFCD00041637
• UNSPSC Code: 12352100
• PubChem Substance ID: 24879118

Properties

• Assay: 97%
• refractive index: n20/D 1.465 (lit.)
• bp: 55-58 °C/0.5 mmHg (lit.)
• density: 0.809 g/mL at 25 °C (lit.)
• SMILES string: CCC#CCCCCC#CCC
• InChI: 1S/C12H18/c1-3-5-7-9-11-12-10-8-6-4-2/h3-4,9-12H2,1-2H3
• InChI key: SLQXYOMUNKJHRV-UHFFFAOYSA-N

Description

General description

3,9-Dodecadiyne is an internal diyne that can undergo nickel-catalyzed cycloaddition with aryl nitriles to form pyridines.

Application

3,9-Dodecadiyne may be used as a monomer to prepare soluble hyperbranched poly(phenylenealkenes) via transition metal-catalyzed polycyclotrimerization. It may also be used as a starting material for preparing 1,2,3,4,9,10-hexaethyl-6,7,8,9-tetrahydroanthracene.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H315,H319,H335
• Precautionary Statements: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves