QUATERNIUM-15
Methenamine 3-chloroallylochloride
QUATERNIUM-15 is linked to 2 EU annex records on this page.
Regulatory evidence by market
This matrix separates verified ingredient rules from sources that are mapped but not yet imported. No imported rule does not mean the ingredient is permitted.
Swipe or scroll horizontally to see every column.
| Market | Evidence status | Records | Source language |
|---|---|---|---|
| European Union | Evidence linked Prohibited entry found Open this evidence | 2 | English and EU languages |
| Great Britain | Evidence linked Prohibited Open this evidence | 2 | English |
| Canada | Source mapped Official source mapped; ingredient rule not imported | 0 | English and French |
| New Zealand | Evidence linked Prohibited Open this evidence | 2 | English |
| ASEAN | Evidence linked Prohibited Open this evidence | 2 | English and national languages |
| China | Evidence linked Prohibited Open this evidence | 1 | Chinese with selected English material |
| Japan | Source mapped Official source mapped; ingredient rule not imported | 0 | Japanese; official English translation available |
| South Korea | Evidence linked Restricted Open this evidence | 1 | Korean with some English names |
| United States | Source mapped Official source mapped; ingredient rule not imported | 0 | English |
| Australia | Source mapped Official source mapped; ingredient rule not imported | 0 | English |
| Brazil | Evidence linked Prohibited Open this evidence | 1 | Portuguese with INCI crosswalks |
| India | Evidence linked Prohibited Open this evidence | 1 | English and Hindi |
| Saudi Arabia | Evidence linked Prohibited Open this evidence | 2 | Arabic and English |
Chemical identity and properties
Quaternium 15
1-(3-chloroallyl)-3,5,7-triaza-1-azoniaadamantane chloride is a cream-colored powder. (NTP, 1992) — CAMEO Chemicals
- IUPAC name
- 1-(3-chloroprop-2-enyl)-3,5,7-triaza-1-azoniatricyclo[3.3.1.13,7]decane chloride
- Molecular formula
- C9H16Cl2N4
- Molecular weight
- 251.15 g/mol
- Exact mass
- 250.0752019 Da
- Topological polar surface area
- 9.7 Ų
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 4
- Covalent units
- 2
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- EPA DTXSID:DTXSID5024760
- PubMed:20573164
- PubMed:15218738
Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
cis-1-(3-Chloroallyl)-3,5,7-triaza-1-azoniaadamantane chloride
Quaternium-15 is a quaternary ammonium salt used as a preservative in many cosmetics and industrial substances. It acts as a formaldehyde releaser. It can cause contact dermatitis in sensitive individuals. It's toxicity is also due to it's ability to react and release formaldehyde and nitrosamines, both of which are believed to be carcinogenic. (L1890, L1897) — Toxin and Toxin Target Database (T3DB)
- IUPAC name
- 1-[(Z)-3-chloroprop-2-enyl]-3,5,7-triaza-1-azoniatricyclo[3.3.1.13,7]decane chloride
- Molecular formula
- C9H16Cl2N4
- Molecular weight
- 251.15 g/mol
- Exact mass
- 250.0752019 Da
- Topological polar surface area
- 9.7 Ų
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 4
- Covalent units
- 2
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- ChEMBL:CHEMBL3181805
- EPA DTXSID:DTXSID0035748
Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Inventory details for QUATERNIUM-15
INCI name
QUATERNIUM-15
Description
Methenamine 3-chloroallylochloride
Record provenance
- Inventory reference
- 37406
- Imported identity
- QUATERNIUM-15
- Source update
- 29/07/2020
Annex records for QUATERNIUM-15
Cis-1-(3-chloroallyl)-3,5,7- triaza-1-azoniaadamantane chloride (cis-CTAC)
Cis-1-(3-chlorallyl)-3,5,7-triaza-1-azoniaadamantane chloride (cis-CTAC), quaternium-15
Key data
- ANTIMICROBIAL
- Preventing and/or slowing down microbial growth.
- PRESERVATIVE
- Exclusively or mainly intended to inhibit the development of micro-organisms in the cosmetic product. All authorised preservatives are substances in the positive list of Annex V to the Cosmetics Regulation 1223/2009.
Official EU ingredient-name evidence
The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.
The markets do not agree about this substance: it is prohibited in some and permitted under conditions in others, across the 9 markets that hold a rule for it.
Related inventory evidence
Ingredients with overlapping formulation functions
Additional official and scientific sources
11 external databases to check this identity in
Each link searches that source for this identity. What each source is, and its legal weight
How QUATERNIUM-15 appears in the CosIng inventory
The CosIng inventory lists QUATERNIUM-15 as a cosmetic ingredient and this page links it to 2 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.
QUATERNIUM-15 is also tagged with 2 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.
Frequently asked questions
Source note for QUATERNIUM-15
This page combines the CosIng inventory entry for QUATERNIUM-15 with 2 linked Annex II–VI records from the local dataset built from public European Commission cosmetic ingredient materials.
Use this inventory page to research QUATERNIUM-15 and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.
Tools & next steps
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