Material reference

Trimethylpyrazine

Roasted nut warm earthy

Role

top

CAS

14667-55-1

MW

122.17 g/mol

BP

171.0 °C

Average use

0.1% Max In Concentrate%

Cost / g

$1.250

Profile

Trimethylpyrazine is curated in this catalog as a nutty material, with a secondary reading of roasted.

On the strip it reads Roasted nut warm earthy.

It is registered under CAS 14667-55-1.

The catalog records an average working dose of 0.1% Max In Concentrate%, which is a starting point for a trial rather than a limit.

How it behaves

volatility index 0.77 · the opening

A boiling point of 171 °C and a molecular weight of 122.17 g/mol give Trimethylpyrazine a volatility index of 0.77, which places it in the opening of a composition.

It leaves the strip early and does its work in the first minutes, before the heart arrives.

The index runs from 0 for a material that barely leaves the strip to 1 for one that flashes off, and it is computed from boiling point and molecular weight. Inside a real formula the surrounding materials shift where the boundaries fall, so a material can read differently there than it does here.

Closest materials in the catalog

Scored on descriptor taxonomy and on measured physical behaviour, using the same ranking that drives the swap and reformulate tools. Price plays no part in the order.

Questions about Trimethylpyrazine

What does Trimethylpyrazine smell like?

Trimethylpyrazine reads as nutty and roasted, described in the catalog as Roasted nut warm earthy.

Is Trimethylpyrazine a top, heart or base note?

Trimethylpyrazine sits in the opening. Its volatility index of 0.77 is computed from a boiling point of 171 °C and a molecular weight of 122.17 g/mol, rather than assigned by hand. It leaves the strip early and does its work in the first minutes, before the heart arrives.

How much Trimethylpyrazine should I use?

The catalog records an average working dose of 0.1% Max In Concentrate% for Trimethylpyrazine. Treat that as the starting point for a trial: the right dose depends on what else is in the formula and what you want it to do there.

What can I use instead of Trimethylpyrazine?

The closest materials in this catalog by olfactive profile and physical behaviour are Acetophenone (75.7% match), 2-Acetylpyrazine (74.7% match) and Benzaldehyde (72.8% match). Closeness is scored on descriptor taxonomy and on measured properties, so the nearest match is the one that behaves most like Trimethylpyrazine. Ranking ignores price.

What is the CAS number for Trimethylpyrazine?

Trimethylpyrazine is registered under CAS 14667-55-1 in this catalog.

Compose with Trimethylpyrazine

Drop Trimethylpyrazine into a new formula and Fragrance Engine reads its role in the blend, the per-gram cost, and the lab sheet.

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