furan-2-carbaldehyde

caramel furan

Found in 3 ingredients across the CompKitchen flavor graph.

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

Properties

Odor threshold — orthonasal, in clean water: 3000 ppb – 13000 ppb median 8000 ppb · 2 published values · see all 3 with sources
CAS number: 98-01-1
Retention index: 830

Not in FEMA GRAS publications 1-33. Of 3,367 listed flavoring substances, none match this compound name. May still be food-safe under other regulatory routes (FDA 21 CFR 172, EFSA, JECFA) — check femaflavor.org for the authoritative current list.

Published thresholds

3 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

3000 ppb – 13000 ppb

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

Threshold	Matrix	Source	Paper
3000 ppb SIDA	water	Rychlik 1998 · 1 studies	—
13000 ppb	water_odor	Leffingwell	—

Retronasal / in-mouth

5000 ppb

Tasted rather than smelled — a different sense, not comparable.

Threshold	Matrix	Source	Paper
5000 ppb	water_flavor	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	2500 µg/L air	2.8–4.4e+04	13	11	no (3.9 decades)
ethanol solution	2.7e+04 ppb	122–4.4e+04	14	13	no (2.2 decades)
food matrix	3000 ppb	2.8–1.41e+07	40	36	no (3.5 decades)
model wine or beer	1.41e+04 ppb	1.41e+04–1.41e+04	1	1	one paper
oil	700 ppb	6.47–1.55e+05	10	8	no (4.1 decades)
unstated	6200 ppb	0.008–1.5e+05	91	80	no (2.6 decades)
water	770 ppb	0.008–9.6e+03	26	26	no (3.3 decades)

Found in

Measured impact first, then profile share

Every ingredient known to contain furan-2-carbaldehyde. 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 furan-2-carbaldehyde in it.

85 cmpds

146 cmpds

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