Methyl Ethylpyrazine-2,3 (Symrise®) 10% in EtOH

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Symrise
roasted
bread crust
nutty
earthy
cocoa
coffee
toasted cereal
potato-like
dry
savoury

Short profile

A powerful roasted profile brings together bread crust, nuts and an earthy cocoa character. Coffee and toasted cereal nuances broaden the impression, with a potato-like undertone. Its texture is dry and savoury rather than sweet. The supplier describes an early, volatile contribution but provides no staged blotter observations establishing heart development, dry-down or projection.

Effect in a formula

Adds convincing roast character to bread, coffee and cocoa accords, supplying a savoury counterweight to sweet gourmand materials. It introduces earthy detail into tobacco and leather compositions. At trace dosage, it can also lend a food-associated warmth to woody structures.

Use and dosage

The supplier places typical final levels well below 0.05% in the fragrance concentrate and advises further dilution of the supplied 10% stock before dosing. Increase only in very small increments: excessive dosage can dominate the composition with a burnt-coffee impression. Separately, the page gives 0.01–0.3% of the supplied solution in finished fragrance; this is not a concentrate dosage. These are formulation guidelines, not IFRA limits.

No confirmed manufacturer use level for this exact product.

Dissolving and diluting

Solvents
The supplied ethanol stock forms clear mixtures with additional ethanol or DPG. Oil-based mixtures are reported to separate because of the alcohol carrier. The underlying raw material is listed as soluble in water and organic solvents; this does not establish oil compatibility for the supplied stock.
Working dilution
Use ethanol to reduce the supplied 10% solution to a 1% working strength for compounding; the supplier recommends 0.1% for smelling evaluation. DPG is also listed as a compatible dilution solvent.
Appearance
Liquid ethanol solution at 10%, ranging from colourless to yellowish.
Practical tip: Assign a dedicated pipette and store this material separately, since the supplier reports odour escaping through closures. Further dilute even the supplied 10% stock and make incremental additions to avoid overwhelming the accord.