Sodium 1-Heptanesulfonate [Reagent for Ion-Pair Chromatography] TCI I0345

Chemical Identity

CAS No.: 22767-50-6
PubChem: CID 23672332·SID 87571700
Formula: C7H15NaO3S
Molecular weight: 202.25 g/mol
Purity: >98.0%(T)
Reference databases: ECHA

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: sodium heptane-1-sulfonate
SMILES: CCCCCCCS(=O)(=O)[O-].[Na+]
InChIKey: REFMEZARFCPESH-UHFFFAOYSA-M

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Sodium 1-Heptanesulfonate is a chemical reagent widely used in analytical chemistry, particularly in ion-pair chromatography. It plays a crucial role in the separation and identification of ionic components in complex mixtures by forming ion pairs with specific ions. This reagent is essential for laboratories that require precise and accurate analysis of various ionic substances, including heavy metals, anions, and organic molecules with limited solubility. Its application extends across multiple analytical techniques, making it a versatile tool in modern laboratory settings.

The chemical properties of Sodium 1-Heptanesulfonate make it a preferred choice for analytical applications. It exhibits chemical stability under normal laboratory conditions and dissolves well in both organic solvents and water. These characteristics ensure consistent performance across different experimental setups. Additionally, its thermal stability prevents degradation during storage and use, ensuring reliable results over time. The combination of solubility and stability makes it ideal for use in high-performance liquid chromatography (HPLC) and thin-layer chromatography.

In Indonesian laboratories, Sodium 1-Heptanesulfonate is commonly used in analytical, environmental, and pharmaceutical research. It supports the analysis of ionic compounds with high accuracy and precision, particularly in studies involving environmental monitoring, drug development, and quality control. Its availability and effectiveness make it a key reagent in various scientific investigations conducted in Indonesia.

Advantages (TCI brochure)

Longer alkyl chain gives greater partition ratio for sodium alkanesulfonates

TCI brochures (PDF)

Ion-Pair Reagents for HPLC 2025-12-09 · p. 3

Related TCI products

Ion-pair chromatography for separating and analyzing ionic compounds with high precision and accuracy.
Environmental analysis to detect and quantify heavy metals and anions in water and soil samples.
Pharmaceutical research for the identification and quantification of organic molecules with limited solubility.
Quality control in the pharmaceutical industry to ensure the purity and consistency of drug formulations.
Analytical chemistry for the determination of various ionic species in complex mixtures using HPLC and TLC techniques.

From the TCI brochure

Ion-pair reagent for basic samples in HPLC

Brand	TCI
CAS number	22767-50-6
Molecular formula	—
Purity	—
Category	Analytical Chemistry > Analytical Reagents > Chromatography Reagents and Solvents
Pack sizes	Available in various quantities as per standard reagent packaging
Physical form	Solid powder or crystalline
Storage	Store in a cool, dry place away from direct sunlight and moisture

Data from the TCI brochure

Weighed amount	1.011 g (0.005 mol) (dissolved in 1 L of an aqueous solvent such as methanol - water)
pH	3.5 (adjusted by addition of aqueous phosphoric acid (50%))

Source: TCI brochure A1084 (2025-12-09)

Sodium 1-Heptanesulfonate should be stored in a cool, dry place, away from direct sunlight and moisture to maintain its chemical stability. It is recommended to use airtight containers to prevent exposure to humidity and contaminants. As a solid reagent, it is typically handled in a well-ventilated laboratory environment to ensure safe working conditions. Avoid contact with incompatible materials such as strong acids or bases. Proper labeling and storage are essential to prevent cross-contamination and ensure safe handling. Regular inspection of storage conditions is advised to maintain the integrity of the reagent over time.

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