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InventoryRef 3493020/11/2012

LAURETH-9

3,6,9,12,15,18,21,24,27-Nonaoxanonatriacontan-1-ol

LAURETH-9 is linked to 1 EU annex record on this page.

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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.

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MarketEvidence statusRecordsSource language
European UnionEvidence linked
Restricted entry found
Open this evidence		1English and EU languages
Great BritainEvidence linked
Restricted
Open this evidence		1English
CanadaSource mapped
Official source mapped; ingredient rule not imported
0English and French
New ZealandEvidence linked
Restricted
Open this evidence		1English
ASEANEvidence linked
Restricted
Open this evidence		1English and national languages
ChinaSource mapped
Official source mapped; ingredient rule not imported
0Chinese with selected English material
JapanSource mapped
Official source mapped; ingredient rule not imported
0Japanese; official English translation available
South KoreaSource mapped
Official source mapped; ingredient rule not imported
0Korean with some English names
United StatesSource mapped
Official source mapped; ingredient rule not imported
0English
AustraliaSource mapped
Official source mapped; ingredient rule not imported
0English
BrazilSource mapped
Official source mapped; ingredient rule not imported
0Portuguese with INCI crosswalks
IndiaEvidence linked
Restricted
Open this evidence		1English and Hindi
Saudi ArabiaEvidence linked
Restricted
Open this evidence		1Arabic and English

Chemical identity and properties

PubChem 2D chemical structure for CAS 3055-99-0
CAS 3055-99-0PubChem CID 656641

Nonaethylene Glycol Monododecyl Ether

Polidocanol is a hydroxypolyether that is nonaethylene glycol in which one of the terminal hydroxy functions is substituted by a lauryl (dodecyl) group. It has a role as a nonionic surfactant, a hepatotoxic agent and a sclerotherapy agent. It is functionally related to a nonaethylene glycol. — ChEBI

IUPAC name
2-[2-[2-[2-[2-[2-[2-[2-(2-dodecoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol
Molecular formula
C30H62O10
Molecular weight
582.8 g/mol
Exact mass
582.43429817 Da
XLogP3
3.9
Topological polar surface area
103.0 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
10
Covalent units
1
Defined stereocentres
0

Also known as

PolidocanolAscleraAethoxy-sklerolnonaethylene glycol monolauryl etherVARITHENAPEG-9 lauryl etherMacrogol 9 lauryl etherdodecyl nonaoxyethylene ether
16 more reported names
CHEBI:46859C12-E9Dodecylnonaoxyethylene glycol monoetherBrij30LauromacrogolsPolidocanolsLaurethsLaureth 1Laureth 72-(2-(2-(2-(2-(2-(2-(2-(2-dodecoxyethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethanolRefChem:8546NIKKOL BL-9EXPolyoxyethylenedodecyl EthersPolyoxyethylene Lauryl EthersMARLIPAL 24/90Ether, Polyoxyethylene Lauryl
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

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 LAURETH-9

INCI name

LAURETH-9

INN name

polidocanol [INN:DCF:JAN]

Description

3,6,9,12,15,18,21,24,27-Nonaoxanonatriacontan-1-ol

Record provenance

Inventory reference
34930
Imported identity
LAURETH-9
Source update
20/11/2012
European Commission CosIng source notes
Annex III Shared INCI name
Entry 257

LAURETH-9

CAS: 3055-99-0
EC: 221-284-4

Key data

CAS
3055-99-0 / 9002-92-0 / 68439-50-9
EC
221-284-4 / 500-002-6 / 500-213-3
Restriction
—
Function
SURFACTANT - EMULSIFYING
Helping suspensions or dispersions of liquids in a second liquid by reducing the surface tension of the substances to be emulsified.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#14994 · LAURETH-9

Ingredients with overlapping formulation functions

LAURETH-6SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING
LAURETH-7SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING
LAURETH-7 PHOSPHATECLEANSING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING
LAURETH-8SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING
LAURIC ACIDCLEANSING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING
LAURIMINO BISPROPANEDIOLCLEANSING, SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING
LAUROYL ETHYL GLUCOSIDESURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING
LAUROYL PEI-233/POLYCAPROLACTONE COPOLYMERSURFACTANT - EMULSIFYING

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

ECHA CHEM / Information on chemicalsPubChem PUG RESTEU Safety Gate cosmetic product alertsECHA CHEMUS EPA CompToxCosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortal

How LAURETH-9 appears in the CosIng inventory

The CosIng inventory lists LAURETH-9 as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.

LAURETH-9 is also tagged with 1 cosmetic function 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

LAURETH-9 appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

According to the EU CosIng inventory, LAURETH-9 carries the following function designation(s):

CAS 3055-99-0 / 9002-92-0 / 68439-50-9 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

Use the INCI Checker to screen a full ingredient list across selected markets, or compare this substance across all supported market datasets.
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Source note for LAURETH-9

This page combines the CosIng inventory entry for LAURETH-9 with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research LAURETH-9 and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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