5-methyl-2-thiophenecarboxaldehyde

green aldehyde

Found in 1 ingredient across the CompKitchen flavor graph.

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

2D Lewis Structure

Formula: C6H6OS
Molecular weight: 126.18 g/mol
PubChem CID: 61663 — full record on PubChem

Properties

Odor description: sulfur
Odor threshold — retronasal / in-mouth: 1.0 ppb 1 published value · see all 1 with sources
Volatility: high
CAS number: 13679-70-4
Retention index: 1717

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.

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.

sulfur shown above Flavornet Cas

—

meaty FlavorDB 2.0, Flavordb Odor Column 2 sources agree

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

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.

Retronasal / in-mouth

1.0 ppb

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

Threshold	Matrix	Source	Paper
1.0 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.

Found in

Measured impact first, then profile share

Every ingredient known to contain 5-methyl-2-thiophenecarboxaldehyde. 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 5-methyl-2-thiophenecarboxaldehyde in it.

durian

fruit

260 cmpds

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