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  • industrial

1,4-Diaminobutane dihydrochloride

CAS 29142-66-3

Also registered as 1 other CAS number

333-93-7

1,4-Diaminobutane dihydrochloride chemical structure

Concern score

Not assessed — no hazard data yet.

1,4-Diaminobutane dihydrochloride in plain language

What it is

On cosmetic ingredient lists it appears as “Putrescine hcl”.

Also known as Putrescine hcl · Putrescine dihydrochloride · Butane-1,4-diamine--hydrogen chloride (1/2) · butane-1,4-diamine;dihydrochloride · 1,4-Butanediamine, dihydrochloride · 1,4-Butanediamine, hydrochloride

Show all 16 names

1,4-Butanediamine, hydrochloride (1:2) · 1,4-Diaminobutane 2HCl · 1,4-Diaminobutane, dihydrochloride · Putrescine hydrochloride · Putrescin dihydrochloride · Putrescindihydrochlorid · SR-01000076079 · Tetramethylenediamine dihydrochloride · Tetramethylenediammonium dichloride · UNII-X45SUR7RHY

What it does

We don't have a plain-language description for 1,4-Diaminobutane dihydrochloride yet.

Recorded functional uses: Not reported

Is it a concern?
We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. 1,4-Diaminobutane dihydrochloride appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • EUCosIngActivePutrescine HCl is the organic compound that conforms to the formula
    • Putrescine HCl is the organic compound that conforms to the formulaSource →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 2 composition records across product categories including unclassified products.
    • EPA CPDat observed this chemical in 2 composition records across product categories including unclassified products.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for 1,4-Diaminobutane dihydrochloride. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for 1,4-Diaminobutane dihydrochloride yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EPA Chemical and Products Database

    exposure · updated 2019-02-27

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed 1,4-Diaminobutane dihydrochloride in a product composition. These are source records, not Greenveil catalog products.

Source records

2

Typical roles

Not reported
See products using 1,4-Diaminobutane dihydrochloride →