At a glance
| Chemical family | Tertiary-amine catalyst (a bicyclic diamine) — a polyurethane-foam process chemical |
| CAS number | 280-57-9 (triethylenediamine; 1,4-diazabicyclo[2.2.2]octane) |
| Classification | Not classified as a carcinogen; documented as a skin, eye, and respiratory irritant; combustible solid. Toxicological literature is largely industrial rather than peer-reviewed |
| Where you encounter it | Flexible and molded polyurethane foam manufacturing (mattresses, furniture, automotive seating) as a gelation catalyst; residual free amine in some finished foams |
| Sleep micro-environment relevance | Unlike the isocyanates and epoxides, traditional amine catalysts do not react into the polymer — they remain emissive in finished foam and contribute to the amine odor of new foam |
| Activated carbon capture | Moderate — a volatile amine; adsorbs onto activated carbon as part of the new-foam off-gassing mixture |
Regulatory & certification status
Where TEDA / DABCO (Triethylenediamine) stands across the major regulatory systems and the certifications a bedroom product might carry. Each row links to the governing instrument; where a jurisdiction has no specific measure, that is stated plainly rather than left blank.
| European Union | No harmonised CLP classification (Annex VI) for triethylenediamine (CAS 280-57-9; EC 205-999-9) was identified; the hazard information in circulation is notified/self-classification under CLP (typically flammable solid, harmful if swallowed, skin and eye irritation, and may cause respiratory irritation). It was not found on the REACH SVHC Candidate List, the Authorisation List (Annex XIV), or the Annex XVII restriction list. (Trade literature discusses TEDA as a substitute for restricted organotin catalysts, but the Annex XVII organotin entry restricts organotins and does not itself name permitted alternatives.) ECHA infocard pages are bot-blocked; absences were checked against ECHA-derived list mirrors and supplier safety-data sheets rather than a directly retrievable ECHA page. Regulatory — ECHA |
| United States | Triethylenediamine is reported on the TSCA Inventory and subject to EPA Chemical Data Reporting (per PubChem's regulatory summary); no TSCA risk evaluation or regulatory action was identified for it. It is not on California Proposition 65 — independently checked against the OEHHA Proposition 65 list (no carcinogen or reproductive-toxicant entry for CAS 280-57-9), consistent with supplier safety data stating it is not listed by IARC, NTP, or California Prop 65. Regulatory — OEHHA · PubChem CID 9237 |
| Canada | Triethylenediamine appears on Canada's Domestic Substances List (the inventory of substances in Canadian commerce). No listing on Schedule 1 of CEPA (toxic substances) and no final Chemicals Management Plan screening assessment for it was identified; this is an absence-of-evidence finding rather than a confirmed clearance. Regulatory — Government of Canada |
| Australia | Triethylenediamine is reported as listed on the Australian Inventory of Industrial Chemicals (administered by AICIS), permitting industrial introduction. No specific IMAP/AICIS restriction or risk-based recommendation against the substance was identified in a search of the AICIS assessments portal. Regulatory — PubChem CID 9237 · AICIS |
| United Kingdom | No GB Mandatory Classification and Labelling (GB MCL) entry specific to triethylenediamine was identified, and no UK REACH restriction specific to it was found. By inference, since Great Britain assimilated the EU harmonised (Annex VI) list as of 31 December 2020 and no EU Annex VI entry for this substance was identified, none would have carried over — but the cited HSE pages are general guidance and do not name this substance, so this is inferred rather than a confirmed substance-specific entry. Regulatory — HSE |
| Certifications | CertiPUR-US: triethylenediamine is not named on the program's prohibited-substances list (which targets formaldehyde, ozone depleters, certain flame retardants, heavy metals such as mercury and lead, regulated phthalates, and chemicals classified as CMR). CertiPUR-US separately states certified foam must emit less than 0.5 ppm total VOCs, measured after 72 hours of chamber conditioning; as a volatile amine, TEDA would plausibly be captured under that total-VOC cap, but this is an inference — the program does not name it. OEKO-TEX STANDARD 100: a textile content standard with no parameter specifically naming this foam catalyst. GREENGUARD / GREENGUARD Gold (UL 2818): low-VOC emissions certifications that do not name the compound; for GREENGUARD Gold, any individually unlisted VOC must reach an air concentration no greater than 1/100 of its TLV (and no greater than 1/2 of the California CREL), which would capture an unlisted amine such as TEDA. Industry — CertiPUR-US · OEKO-TEX |
| The 72-hour test window | Largely captured. Triethylenediamine is a volatile tertiary amine (it sublimes and is a recognised source of amine off-gassing and odour from polyurethane foam), so it off-gasses into chamber air and a short ~72h VOC emissions test would generally detect it. Inferred — from the compound's volatility/emission profile versus the VOC focus of short chamber tests |
What it is
Triethylenediamine is a small, cage-shaped diamine (1,4-diazabicyclo[2.2.2]octane), better known by its abbreviation TEDA or the trade name DABCO. It is one of the standard tertiary-amine catalysts in polyurethane foam manufacturing, where it accelerates the "gelation" reaction — the isocyanate-plus-polyol step that sets the foam. Catalysts are essential to making foam at a usable speed; TEDA is a long-standing workhorse for that job. Industry — polyurethane catalyst technical literature
Its documented direct hazards are irritation — to skin, eyes, and the respiratory tract — and it is a combustible solid. It is not classified as a carcinogen, and its toxicological record is largely industrial (safety data and handling guidance) rather than a deep peer-reviewed literature. We flag that openly: the strongest, best-documented point about TEDA for a sleeper is not a severe health rating, but its emissiveness. Industry — manufacturer safety data
How it relates to the bedroom
The catalyst that doesn't react away
This is what makes TEDA worth a page. The isocyanates (TDI, MDI) and the epoxide feedstocks (propylene and ethylene oxide) are consumed in building the foam — they react into the polymer and are largely gone from the finished product. Traditional amine catalysts like TEDA are different: they catalyze the reaction without being consumed by it, so they remain free in the foam and can off-gas afterward. Industry — emissive-catalyst literature In other words, of all the chemicals used to make the foam, the amine catalysts are among the few you might actually smell coming off a finished mattress.
The amine note in new-foam smell
New-foam odor is a mixture — residual solvents, aldehydes, and amine catalysts. TEDA and related tertiary amines contribute the characteristic fishy/amine note. The same emissiveness is well known in the auto industry as a cause of "window fogging," where amine catalysts and other foam volatiles condense on car glass. Industry That the industry has invested heavily in "reduced-odor" and "reactive" amine catalysts — designed to chemically bond into the foam so they cannot off-gas — is itself evidence that the emission is real and unwanted. Industry — reduced-odor catalyst development
What this means for a sleeper
For the person in the bed, TEDA is part of why a new foam mattress smells, and one of the few foam-making chemicals plausibly present in the breathing zone of a fresh mattress as a free, volatile compound. Its direct health hazard at those levels is not well characterised and is most likely modest (irritation), but it is a genuine, on-the-nose example of foam chemistry reaching the sleeper. Inferred — emissiveness is documented; in-bedroom concentration and any health significance are not quantified
What the research says
Emissiveness is the well-documented part
The clearest, most consistent finding about TEDA is industrial: it is an emissive catalyst that contributes to amine odor and fogging, which is why the field developed alternatives. Industry This is solid as engineering knowledge even though it is not a peer-reviewed health literature.
Health effects are thinly characterised
Beyond irritation and combustibility, TEDA does not carry a major health classification, and we are not aware of a substantial peer-reviewed toxicology base for low-level consumer exposure. The honest position is that the odor/emission story is well-supported and the health story is under-characterised — and we won't inflate the latter. Speculation — low-level consumer health significance is not established
What helps reduce exposure
Air out new foam before use and ventilate the bedroom. Emissive amine catalysts are highest when foam is fresh; airing in a ventilated space and keeping the bedroom ventilated addresses the early-life window when the amine note is strongest.
Ask about low-emission or "reactive" amine catalysts. Foams made with reactive amine catalysts (which bond into the polymer) emit substantially less amine; this is a real manufacturing difference worth asking a maker about.
Consider non-polyurethane constructions. Natural latex and innerspring-with-natural-fiber beds avoid amine-catalyst chemistry entirely.
Activated-carbon filtration adsorbs the amine and the broader new-foam VOC mixture, which is one of the more directly addressable parts of foam off-gassing.
What does NOT help
- Assuming all the "foam-making" chemicals behave alike. The isocyanates and epoxides react away; the amine catalysts can linger and off-gas. TEDA is the lingering kind.
- Masking the amine odor. Air fresheners add VOCs without removing the amine.
- HEPA-only air purifiers. TEDA is a volatile amine; particle filtration does not capture it.
Open research questions
- Quantified in-bedroom airborne concentrations of TEDA and related amine catalysts from new foam, and their decay over time. Speculation
- Any health significance of chronic low-level amine-catalyst exposure at sleep-relevant concentrations. Speculation
- How much reactive/low-emission catalysts reduce real-world new-mattress amine emissions. Speculation
The Embr Exposure Ledger: Triethylenediamine (DABCO)
One chemical, several public questions, answered from independent datasets and joined here — the environment it shows up in, the body burden it carries, how it is regulated, and what actually reduces it.
Detection and body-burden figures are occurrence data, not a personal measurement or a health diagnosis. Part of the Embr Exposure Ledger — an open, cross-dataset chemical join (download the data), reusable with attribution.
Citations
- Polyurethane foam catalyst technical literature — triethylenediamine (TEDA/DABCO) as a tertiary-amine gelation catalyst; emissive in finished foam (amine odor, window fogging), motivating low-emission/reactive-amine catalyst development. Industry
- Manufacturer safety data — triethylenediamine: skin, eye, and respiratory irritant; combustible solid; not classified as a carcinogen. Industry
Frequently asked questions
What is TEDA / DABCO?
Triethylenediamine — sold as TEDA or under the trade name DABCO — is a tertiary-amine catalyst used to make polyurethane foam. It speeds the 'gelation' reaction between the isocyanate and the polyol, helping the foam set. It is one of the standard catalysts in flexible-foam manufacturing.
Does TEDA stay in the finished foam?
Partly, yes — and this is what distinguishes it from the isocyanates. Traditional amine catalysts like TEDA do not react into the polymer, so they remain free in the foam and can off-gas afterward. This emissive behavior is documented as a cause of amine odor and of window-fogging in cars, and it is exactly why the industry developed 'reduced-odor' and 'reactive' amine catalysts designed to bond into the foam instead.
Is TEDA the 'new foam smell'?
It is one contributor to it. The new-foam smell is a mixture — residual solvents, aldehydes, and amine catalysts. TEDA and related tertiary amines contribute the characteristic amine note. Because they do not fully react away, they are among the foam-making chemicals most likely to actually reach your nose from a finished product.
Is TEDA dangerous?
TEDA's documented hazards are irritation — to skin, eyes, and the respiratory tract — and it is a combustible solid. It is not classified as a carcinogen. Its toxicological literature is more industrial than peer-reviewed; the clearest, best-documented issue for consumers is its emissiveness and odor rather than a severe health classification.
How do I reduce amine-catalyst off-gassing?
Air out new foam before use and ventilate the bedroom — emissive amine catalysts are highest when foam is fresh. Foams made with low-emission or reactive amine catalysts (which bond into the polymer) emit less; this is a manufacturing choice you can ask about. Non-polyurethane constructions avoid amine-catalyst chemistry entirely.
Related compounds
Embr is a sleep environment company researching and addressing the chemistry of the bedroom. Research and product development in progress.
Last reviewed 2026-06-27. If you find a factual error, contact us.