268992

4-Pentyn-2-ol

≥98%

• Synonym(s): (±)-4-Pentyn-2-ol
• Linear Formula: HC≡CCH₂CH(OH)CH₃
• CAS Number: 2117-11-5
• Molecular Weight: 84.12
• Beilstein: 1734245
• EC Number: 218-321-1
• MDL number: MFCD00004555
• UNSPSC Code: 12352100
• PubChem Substance ID: 24856305
• NACRES: NA.22

Properties

• Quality Level: 100
• Assay: ≥98%
• form: liquid
• refractive index: n20/D 1.438 (lit.)
• bp: 126-127 °C (lit.)
• density: 0.892 g/mL at 25 °C (lit.)
• functional group: hydroxyl
• SMILES string: CC(O)CC#C
• InChI: 1S/C5H8O/c1-3-4-5(2)6/h1,5-6H,4H2,2H3
• InChI key: JTHLRRZARWSHBE-UHFFFAOYSA-N

Description

General description

4-Pentyn-2-ol, a secondary homopropargylic alcohol, is toxic with LC50 value of 160.

Application

4-Pentyn-2-ol was used in the synthesis of new Fischer-type rhenium (III) benzoyldiazenido-2-oxacyclocarbenes. It was also used in the preparation of c-aryl glycosides by undergoing cycloaddition reaction with an aryl nitrile oxide.

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Warning
• Hazard Statements: H226,H315,H319,H335
• Precautionary Statements: P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point(F): 98.6 °F - closed cup
• Flash Point(C): 37 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves