alpha-terpinolene

herbal terpene

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: fresh, green, fruity, floral, sweet
Odor threshold — orthonasal, in clean water: 200 ppb 1 published value · see all 1 with sources
CAS number: 586-62-9
Retention index: 1089

Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

~ Isomer match

FEMA number: 3046
GRAS publication: GRAS 3
FEMA primary name: TERPINOLENE

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

Source: FEMA GRAS publications 1-33.

How this molecule is described

Sources disagree about odour more often than they disagree about chemistry. Rather than show one answer, here is every description on file with how many ingredient records carry it.

Also filed as

α-terpinolene

Same molecule, unified here — previously counted and displayed as separate compounds.

Published thresholds

1 measured value 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.

Orthonasal, in clean water

200 ppb

The reference measurement — smelled in water. OAV is computed against this.

Threshold	Matrix	Source	Paper
200 ppb	water_odor	Leffingwell	—

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.

Thresholds in published tables

Numbers printed in open-access papers, grouped by the medium the table states. Median and full range of the values; “agree” means two or more papers whose middle 80% of values sit within 100×. Not reviewed.

Medium	Median	Range	Values	Papers	Papers agree?
air	0.2 µg/L air	0.2–0.2	1	1	one paper
food matrix	200 ppb	41–200	10	9	yes
oil	2100 ppb	200–4e+03	2	2	yes
unstated	200 ppb	0.08–260	33	32	yes
water	140 ppb	0.2–2e+05	19	19	yes

Found in

Measured impact first, then profile share

Every ingredient known to contain alpha-terpinolene. 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 alpha-terpinolene in it.

65 cmpds

193 cmpds

353 cmpds

407 cmpds