n-Heptane is an organic compound with the chemical formula C₇H₁₆ and CAS Number 142-82-5. It is commonly supplied as a colourless, highly volatile liquid with a characteristic petroleum-like odour. It is practically insoluble in water but miscible with many non-polar organic solvents, making it a useful solvent for laboratory and chemical applications.

n-Heptane is valued for its non-polar solvent properties and ability to dissolve oils, fats, waxes, and various organic compounds. Common laboratory applications include liquid-liquid extraction, sample preparation, chromatography, solvent purification, lipid analysis, and analytical chemistry procedures. It is also commonly used as a reference compound in octane rating studies and research involving hydrocarbon properties.

Its low polarity, relatively low boiling point, and volatility make n-Heptane useful in analytical chemistry, organic chemistry, petroleum research, and general laboratory applications. It may also be used in specialised chemical formulations and industrial processes requiring a non-polar hydrocarbon solvent. The appropriate grade and purity should be selected according to the requirements of the intended application.

KSFE Malaysia supplies laboratory chemicals and scientific products for research institutions, educational facilities, and general laboratory applications.

Safety Note: n-Heptane is a highly flammable liquid and vapour. It may cause skin irritation, drowsiness, and dizziness if vapours are inhaled. Aspiration into the lungs if swallowed may cause serious or fatal injury. It is also hazardous to aquatic environments. Handle it in a suitable, well-ventilated area using appropriate personal protective equipment. Keep it away from heat, sparks, open flames, and other ignition sources. Store in a tightly closed container in a cool, well-ventilated area and follow the supplier's safety data sheet (SDS) for proper handling, storage, and disposal.