CAS 65284-56-2

2-Propyne-1-sulfonic acid

Description:

2-Propyne-1-sulfonic acid, with the CAS number 65284-56-2, is an organic sulfonic acid characterized by its unique structure, which includes a propyne group (a three-carbon alkyne) attached to a sulfonic acid functional group. This compound is typically a colorless to pale yellow liquid and is known for its high solubility in water due to the presence of the sulfonic acid group, which enhances its ionic character. It exhibits strong acidity, making it a useful reagent in various chemical reactions, particularly in organic synthesis and polymer chemistry. The sulfonic acid group also imparts excellent stability and reactivity, allowing it to participate in electrophilic substitution reactions. Additionally, 2-propyne-1-sulfonic acid can serve as a monomer in the production of sulfonated polymers, which are valuable in applications such as ion exchange membranes and surfactants. Safety precautions should be taken when handling this compound, as it can be corrosive and may cause irritation to skin and eyes.

Formula: C₃H₄O₃S

InChI: InChI=1S/C3H4O3S/c1-2-3-7(4,5)6/h1H,3H2,(H,4,5,6)

InChI key: InChIKey=UOCCVDMCNJYVIW-UHFFFAOYSA-N

SMILES: C(S(=O)(=O)O)C#C

Synonyms:

• Prop-2-ynesulfonic acid
• 2-Propyne-1-sulfonic acid