Description

Sodium 1-Propyne-1-Sulphonate is a versatile organic sulfonate salt with a terminal alkyne functional group. This unique structure makes it a valuable intermediate and additive in advanced chemical synthesis and industrial processes. It is particularly sought after by manufacturers in the pharmaceutical, specialty chemical, and research sectors. Its reactivity profile enables its use in click chemistry, polymer modification, and as a surfactant or corrosion inhibitor precursor.

Application

• Click Chemistry Intermediate: Serves as a key building block in Huisgen cycloaddition and other copper-catalyzed azide-alkyne cycloaddition (CuAAC) reactions for drug discovery and bioconjugation.
• Polymer Modification: Used to introduce sulfonate and alkyne groups into polymer backbones, enhancing hydrophilicity, adhesion, or creating sites for further functionalization.
• Surfactant & Detergent Formulation: Acts as a precursor or component in the synthesis of specialty surfactants and high-performance detergent additives.
• Corrosion Inhibition: Employed in research and formulation of corrosion inhibitors for industrial water treatment and metalworking fluids.
• Electroplating Additive: Functions as a brightening agent or leveler in electroplating baths to improve deposit quality.
• Research & Development: A valuable reagent for academic and industrial R&D in organic synthesis, material science, and chemical biology.

Basic Information

Product Name	Sodium 1-Propyne-1-Sulphonate
CAS No.	28672-98-2
Molecular Formula	C₃H₃NaO₃S
Molecular Weight	142.11 g/mol
Synonyms	1-Propyn-1-ol, 3-sulfo-, sodium salt; Sodium propynyl sulfonate; Sodium 3-sulfo-1-propyn-1-olate; 1-Propyne-1-sulfonic acid, sodium salt; Propynylsulfonic acid sodium salt; Sodium acetylene sulfonate (common name); 3-Sulfopropynoic acid sodium salt; Propargyl sulfonate sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 1-Propyne-1-Sulphonate is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide Certificates of Analysis (COA) with key parameters including assay, impurity profile, and moisture content. Our quality systems support compliance with cGMP and ISO standards for reliable supply to demanding industrial and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed in a dry environment to prevent absorption of moisture from the air, which can affect product quality and handling.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.5%
pH (5% solution)	6.0 - 8.5

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.