butyl propionate

fruity ester

Found in 8 ingredients across the CompKitchen flavor graph.

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

2D Lewis Structure

Formula: C7H14O2
Molecular weight: 130.18 g/mol
PubChem CID: 11529 — full record on PubChem

Properties

Odor description: banana, earthy, rose, sweet, weak
Odor threshold — orthonasal, in clean water: 112 ppb 1 published value · see all 2 with sources
Volatility: high
CAS number: 590-01-2
Retention index: 908

Regulatory · United States

FEMA GRAS — Generally Recognized As Safe for flavoring use

✓ Exact match

FEMA number: 2211
GRAS publication: GRAS 3
FEMA primary name: BUTYL PROPIONATE

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

butyl propanoate

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

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.

banana, earthy, rose, sweet, weak shown above FlavorDB 2.0

earthy sweet weak rose Flavordb Odor Column

—

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

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.

Orthonasal, in clean water

112 ppb

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

Threshold	Matrix	Source	Paper
112 ppb	water_odor	Leffingwell	—

In air

36.0 ppb

Airborne detection — not comparable to a water threshold.

Threshold	Matrix	Source	Paper
36.0 ppb	air	Nagata 2003	—

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	33.5 µg/L air	0.19–36	5	3	no (2.3 decades)
food matrix	67.3 ppb	67.3–67.3	1	1	one paper
unstated	25 ppb	25–200	10	7	yes
water	25 ppb	25–25	2	2	yes

Found in

Measured impact first, then profile share

Every ingredient known to contain butyl propionate. 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 butyl propionate in it.

120 cmpds

346 cmpds

385 cmpds

426 cmpds