butylated hydroxytoluene

spicy phenol

Found in 5 ingredients across the CompKitchen flavor graph.

Look up another compound — search by name, CAS number, PubChem CID, or FEMA #.

Properties

Odor description: mild phenolic camphor
Odor threshold — in a food matrix: 15.0 ppb – 1935 ppb median 975 ppb · 2 published values · see all 2 with sources
CAS number: 128-37-0
Retention index: 1518

Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

✓ Exact match

FEMA number: 2184
GRAS publication: GRAS 3
FEMA primary name: BUTYLATED HYDROXYTOLUENE

Use-level matrix not extracted for this substance — check the source publication for current ppm guidance.

Source: FEMA GRAS publications 1-33.

Published thresholds

2 measured values from the literature. Grouped by what was actually measured — a threshold smelled in clean water, tasted in the mouth, or measured in a real food are three different quantities and are not pooled.

In a food matrix

15.0 ppb – 1935 ppb

Measured in a real food, where the matrix shifts detection — not a clean-water value.

Threshold	Matrix	Source	Paper
15.0 ppb	water (food: unknown)	Literature corpus	23758650, 38299181, 39760082 +3
1935 ppb	water (food: rice)	Literature corpus	36307468

Only values we can attribute are listed. Where a compendium's licence does not permit public attribution its figures are omitted here, so every number on this page traces to a citable source.

Where you'd actually smell it

Odor Activity Value = measured concentration ÷ odor threshold (1000.0 ppb, the engine's canonical value — see the 2 published values). OAV ≥ 1 = perceptible.

Food	Concentration (ppb)	OAV	Source
rice	61.3	0.06	—

Concentrations from PubMed Central Open Access papers (free literature corpus, MIT-style licensed). Copper = OAV ≥ 10 (strongly perceptible). Green = OAV ≥ 1 (perceptible).

Found in

Measured impact first, then profile share

Every ingredient known to contain butylated hydroxytoluene. Ingredients with a measured concentration come first, ranked by odour activity; the rest follow by how large a share of that ingredient's profile this molecule is. The figure beside each is how many different compounds that ingredient has in total — not the concentration of butylated hydroxytoluene in it. Full concentrations are in the OAV table above.

43 cmpds

75 cmpds

416 cmpds

521 cmpds