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CAS 13887-98-4 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 5987315/10/2010

TRIOXAUNDECANEDIOIC ACID

Acetic acid, 2,2'-[oxybis(2,1-ethanediyloxy)]bis-

TRIOXAUNDECANEDIOIC ACID is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 13887-98-4

CAS 13887-98-4PubChem CID 83793

3,6,9-Trioxaundecanedioic acid

IUPAC name: 2-[2-[2-(carboxymethoxy)ethoxy]ethoxy]acetic acid

Molecular formula: C8H14O7
Molecular weight: 222.19 g/mol
Exact mass: 222.07395278 Da
XLogP3: -1.0
Topological polar surface area: 102.0 Å²
Hydrogen-bond donors: 2
Hydrogen-bond acceptors: 7
Covalent units: 1
Defined stereocentres: 0

Also known as

trioxaundecanedioic acidUNII-63VXM1976AEINECS 237-655-92,2'-(Oxybis(2,1-ethanediyloxy))bisacetic acid63VXM1976ATETRAGLYCOLIC ACIDAcetic acid, (oxybis(2,1-ethanediyloxy))bis-BIS(2-(CARBOXYMETHOXY)ETHYL) ETHER

16 more reported names

2,2'-[oxybis(2,1-ethanediyloxy)]bisacetic acidDIETHYLENE GLYCOL BIS(CARBOXYMETHYL ETHER)(2-(2-(CARBOXYMETHOXY)ETHOXY)ETHOXY)ACETIC ACIDRefChem:91706TRIOXAUNDECANEDIOIC ACID [INCI]2,2'-((Oxybis(ethane-2,1-diyl))bis(oxy))diacetic acidPEG3-(CH2CO2H)23,6,9-Trioxaundecandioic acidAcetic acid, 2,2'-[oxybis(2,1-ethanediyloxy)]bis-[2-(2-carboxymethoxyethoxy)ethoxy]acetic acid2-{2-[2-(carboxymethoxy)ethoxy]ethoxy}acetic acidHY-W067705AS-67981(2-[2-(Carboxymethoxy)ethoxy]ethoxy)acetic acid #O,O'-Oxydiethylene-diglycolic acid2,2'-[oxybis(ethane-2,1-diyloxy)]diacetic acid

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External database identifiers

EPA DTXSID:DTXSID30160823

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Inventory details for TRIOXAUNDECANEDIOIC ACID

INCI name

TRIOXAUNDECANEDIOIC ACID

Description

Acetic acid, 2,2'-[oxybis(2,1-ethanediyloxy)]bis-

Record provenance

Inventory reference: 59873
Imported identity: TRIOXAUNDECANEDIOIC ACID
Source update: 15/10/2010

European Commission CosIng source notes

Annex records for TRIOXAUNDECANEDIOIC ACID

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Key data

CAS

13887-98-4

237-655-9

Restriction

—

Function

HUMECTANT: Retaining and/or preserving the moisture in a product during use.

Official EU ingredient-name evidence

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

#29333 · TRIOXAUNDECANEDIOIC ACID

Ingredients with overlapping formulation functions

TRIMETHYL PHYTOSPHINGOSINE IODIDEHAIR CONDITIONING, HUMECTANT, SKIN CONDITIONING, SKIN PROTECTING

TRIMETHYLAMINE OXIDEFRAGRANCE, HUMECTANT

TRIMETHYLENE ASCORBATESKIN CONDITIONING - EMOLLIENT; HUMECTANT; SKIN CONDITIONING - HUMECTANT; SKIN CONDITIONING - MISCEL…

TRIMETHYLOLPROPANEHUMECTANT, SOLVENT

TRIPEPTIDE-51ANTIMICROBIAL, ANTIOXIDANT, ASTRINGENT, HUMECTANT, SKIN CONDITIONING, SKIN PROTECTING

TRIPEPTIDE-69HUMECTANT, SKIN CONDITIONING

TRIPROPYLENE GLYCOLANTIOXIDANT, EMULSION STABILISING, HUMECTANT

TRIS-ETHOXYDIGLYCOL PHOSPHATEHUMECTANT, SKIN CONDITIONING

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 chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal

How TRIOXAUNDECANEDIOIC ACID appears in the CosIng inventory

The CosIng inventory lists TRIOXAUNDECANEDIOIC ACID as a cosmetic ingredient and this page links it to 0 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.

TRIOXAUNDECANEDIOIC ACID 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

TRIOXAUNDECANEDIOIC ACID is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, TRIOXAUNDECANEDIOIC ACID carries the following function designation(s):

HUMECTANT

CAS 13887-98-4 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.

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Source note for TRIOXAUNDECANEDIOIC ACID

This page reproduces the CosIng inventory entry for TRIOXAUNDECANEDIOIC ACID from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research TRIOXAUNDECANEDIOIC ACID 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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