2-Butyne, 98%, Thermo Scientific Chemicals

Description

2-Butyne is used to synthesize alkylated hydroquinones in the total synthesis of Vitamin E. It is also used as pharmaceutical intermediates.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
2-Butyne is used to synthesize alkylated hydroquinones in the total synthesis of Vitamin E. It is also used as pharmaceutical intermediates.

Solubility
Not miscible in water.

Notes
Avoid extremes of temperature and direct sunlight. Heat-sensitive. Avoid contact with oxidizing materials. Incompatible with Halogens. Chlorinated solvents.

Specifications

Chemical Identifiers

• CAS: 503-17-3
• Molecular Formula: C4H6
• Molecular Weight (g/mol): 54.092
• MDL Number: MFCD00009275
• InChI Key: XNMQEEKYCVKGBD-UHFFFAOYSA-N
• Synonym: 2-butyne, dimethylacetylene, crotonylene, unii-lke6d3018e, ch3cequivcch3, 1,2-dimethylvinylene, 1-methyl-1-propynyl, 2-butyn, acmc-209kl9
• PubChem CID: 10419
• IUPAC Name: but-2-yne
• SMILES: CC#CC

• Melting Point: -32°C
• Density: 0.69
• Boiling Point: 24°C to 27°C
• Flash Point: −49°C (−56°F)
• Odor: Recognizable
• Refractive Index: 1.392
• Quantity: 5 g
• UN Number: UN3295
• Beilstein: 1361340
• Solubility Information: Not miscible in water.
• Formula Weight: 54.09
• Percent Purity: 98%
• Chemical Name or Material: 2-Butyne

Safety and Handling

Signal Word

• Danger

Hazard Category

• Serious eye damage/eye irritation Category 2
• Flammable liquid Category 1
• Skin corrosion/irritation Category 2
• Specific target organ toxicity Category 3

Hazard Statement

• H224-Extremely flammable liquid and vapour.
• H315-Causes skin irritation.
• H319-Causes serious eye irritation.
• H335-May cause respiratory irritation.

Precautionary Statement

• P210-Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
• P240-Ground/bond container and receiving equipment.
• P243-Take precautionary measures against static discharge.
• P261-Avoid breathing dust/fume/gas/mist/vapours/spray.
• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P302+P352-IF ON SKIN: Wash with plenty of water/soap.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
• P403+P235-Store in a well-ventilated place. Keep cool.

Supplemental information

• MIXTURE LIST-Contains : 2-Butyne

RUO – Research Use Only