5H-5-Methyl-6,7-dihydrocyclopentapyrazine TCI M1086

TCI M1086 5H-5-Methyl-6,7-dihydrocyclopentapyrazine is a heterocyclic compound that combines a pyrazine ring with a fused cyclopentane ring and a methyl substituent. The cyclopenta-fused pyrazine class is widely recognised as a group of aroma components that occur naturally in heated foodstuffs such as roasted coffee, roasted nuts, and processed meat products. In the laboratory, this compound plays a dual role: as a reference material in aroma and flavour analysis, and as a heterocyclic building block for the synthesis of molecules that require a substituted pyrazine core.

The property that makes this material particularly interesting is its potential for strong aroma impact at very low concentrations, a characteristic trait of the alkylpyrazine family. Its bicyclic structure, with a partially saturated cyclopentane ring, makes the molecule more lipophilic than simple pyrazines. As a result, its behaviour in gas chromatographic separations and in fatty food matrices differs from that of simpler analogues and needs to be characterised in its own right. Being liquid at room temperature, it is straightforward to prepare stock solutions in solvents such as ethanol or dichloromethane for instrument calibration and for controlled sensory testing.

In Indonesian laboratories, this compound is typically used where aroma profiling and heterocyclic synthesis intersect. It supports flavour analysis work on roasted and thermally processed products, serves as a reference point for chromatographic identification, and provides a defined starting material for research groups building substituted pyrazine structures. Supplied by AMI Scientific under the TCI brand, it is suited to analytical laboratories, food and flavour research units, and synthetic chemistry groups working with heterocyclic scaffolds.

• Aroma and flavour reference standard: the compound belongs to a class of naturally occurring aroma components in heated foods, making it a valid identification reference for analytical work on roasted products.
• Gas chromatography method development: its increased lipophilicity relative to simple pyrazines means retention behaviour must be characterised separately, which makes it useful for building and validating separation methods.
• Heterocyclic synthesis building block: the substituted pyrazine core with a fused cyclopentane ring serves as a defined starting point for constructing more elaborate heterocyclic target molecules.
• Controlled sensory evaluation: because it is liquid at room temperature, stock solutions in ethanol or dichloromethane are easily prepared for dosing at the very low concentrations sensory panels require.
• Food matrix characterisation studies: its distinct behaviour in fatty food matrices makes it a suitable probe compound for research examining how alkylpyrazines partition and release in processed food systems.

• Product code: M1086

Store the container tightly closed in a cool, dry, well-ventilated area away from heat sources, direct sunlight, and incompatible materials, following the conditions stated on the manufacturer's label and safety data sheet. Amber glass bottles with chemically resistant closures are appropriate for a volatile aroma-active liquid of this type, as they limit both light exposure and headspace losses that would affect concentration accuracy. Handle in a fume hood, and wear safety glasses, gloves, and a laboratory coat. Because compounds in this class are odour-active at extremely low concentrations, work carefully to avoid cross-contamination of glassware, analytical instruments, and sensory testing areas. Prepare stock solutions in clearly labelled, tightly sealed vials, and consult the safety data sheet before first use.

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