Product Overview

Benzene 99.9% GC-HS (CAS No. 71-43-2) is a monocyclic aromatic hydrocarbon consisting of a six-membered conjugated carbon framework with delocalised π-electron character. Its volatility and relatively low boiling point make benzene readily transferable from a liquid sample into the vapour phase under headspace-equilibration conditions, which is the fundamental analytical principle behind its use in headspace gas chromatography. Benzene is a recognised volatile organic compound and is routinely encountered in chromatographic methods for volatile and semi-volatile organic compounds.

The GC-HS grade is intended specifically for headspace gas-chromatographic workflows where the solvent itself must be suitable for controlled vapour-phase sampling and where volatile background constituents can influence chromatographic evaluation. High-purity benzene is used in analytical preparation and as a defined hydrocarbon component in chromatographic work, while headspace GC methods have established applications for determining benzene and related volatile compounds in environmental, biological and other complex matrices. The grade is therefore centred on headspace sampling, chromatographic cleanliness and reproducible volatile-phase behaviour rather than general-purpose solvent use.

Typical Applications

• Headspace gas-chromatographic analysis of benzene and related volatile organic compounds.
• Preparation of benzene-containing calibration or working solutions for headspace GC methods where the procedure specifies benzene as the analytical component.
• Environmental analysis of volatile aromatic hydrocarbons in water and other samples using headspace or purge-and-trap GC workflows.
• Biological monitoring procedures involving chromatographic determination of benzene in blood, urine or related biological matrices.
• Preparation and evaluation of volatile-organic-compound analytical systems where benzene is included as a target analyte or reference component.
• Headspace GC method development and validation involving volatile aromatic hydrocarbons and BTEX-related analytical measurements.
• Chromatographic research requiring a high-purity benzene source with controlled volatile background characteristics.

Common Synonyms

• Benzol
• Benzole
• Cyclohexatriene
• 1,3,5-Cyclohexatriene
• Phenyl Hydride
• Phene
• Pyrobenzol
• [6]Annulene

Storage Conditions

Store tightly closed in a cool, well-ventilated location and protect the liquid from excessive heat and unnecessary evaporation, as loss of the volatile component can alter the product composition during prolonged exposure. Keep the container protected from direct light and contamination, and promptly reseal it after dispensing to preserve the intended purity and chromatographic suitability.