Skip to main content

2-undecanol

floral alcohol

Found in 27 ingredients across the CompKitchen flavor graph.

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

2D Lewis structure of 2-undecanol
2D Lewis Structure
Formula
C11H24O
Molecular weight
172.31 g/mol
PubChem CID
15448 — full record on PubChem

Properties

Odor description
clean cloth, cotton, fresh, sarsaparilla, waxy
Odor threshold
18.78 ppb (1 source, non-SIDA)
Volatility
medium
CAS number
1653-30-1
Retention index
14
Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

✓ Exact match
FEMA number
3246
GRAS publication
GRAS 4
FEMA primary name
2-UNDECANOL

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.

Descriptions on file

Ordered by how many independent descriptor streams give each wording, then by how often it appears. The bar is still replication — one source copied onto many ingredients scores high there — so the two can disagree.

fresh waxy clean cloth cotton sarsaparilla FlavorDB 2.0, Flavordb Odor Column 2 sources agree
4
pine FlavorDB 2.0, Flavordb Odor Column 2 sources agree
1
clean cloth, cotton, fresh, sarsaparilla, waxy shown above FlavorDB 2.0
19
waxy fatty clean oily fresh fishy nut flesh tallow FlavorDB 2.0
3

Bars are the share of ingredient records carrying each description. High agreement means the sources replicate each other — not necessarily that they are right.

Found in

Measured impact first, then profile share

Every ingredient known to contain 2-undecanol. 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 2-undecanol in it.

See all 27 ingredients with Pro

The inverted compound index is a Pro feature — reverse-search any of 5,240 flavor molecules across the full graph.

Into the chemistry?

Get a molecule-level pairing breakdown each week — which ingredients share a compound, and why it matters at the table. Free, no spam.

Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Try the pairing tools to see which ingredient combinations rely on 2-undecanol, or compare two ingredients side-by-side.