244376

5-Chloro-1-pentyne

98%

• Synonym(s): (3-Chloropropyl)acetylene, 1-Chloro-4-pentyne, 4-Pentynyl chloride
• Linear Formula: HC≡CCH₂CH₂CH₂Cl
• CAS Number: 14267-92-6
• Molecular Weight: 102.56
• Beilstein/REAXYS Number: 1736710
• EC Number: 238-159-5
• MDL number: MFCD00001014
• UNSPSC Code: 12352100
• PubChem Substance ID: 24854670
• NACRES: NA.22

Properties

• assay: 98%
• form: liquid
• refractive index: n20/D 1.444 (lit.)
• bp: 67-69 °C/145 mmHg (lit.)
• density: 0.968 g/mL at 25 °C (lit.)
• functional group: alkyl halide
• storage temp.: 2-8°C
• SMILES string: ClCCCC#C
• InChI: 1S/C5H7Cl/c1-2-3-4-5-6/h1H,3-5H2
• InChI key: UXFIKVWAAMKFQE-UHFFFAOYSA-N

Description

Application

5-Chloro-1-pentyne was used in the synthesis of 5-chloro-2-trimethylstannyl-1-pentene by reacting with Me₃SnCu.Me₂S. It was also used with α-diazoesters in a copper-catalyzed synthesis of pyrazoles.

Safety Information

• pictograms: GHS02,GHS07
• signalword: Danger
• hcodes: H225,H315
• pcodes: P210 - P302 + P352
• Hazard Classifications: Flam. Liq. 2 - Skin Irrit. 2
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 3
• flash_point_f: 59.0 °F - closed cup
• flash_point_c: 15 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter