C8H14O7
222.19 g/mol
Industrial ChemicalDanger
3,6,9-Trioxaundecanedioic acid
CAS13887-98-4EC237-655-9
Category
Industrial Chemical
Compound Class
Organic Acid
Primary Use
chelating agent and personal care ingredient
3,6,9-Trioxaundecanedioic acid is a dicarboxylic acid containing three ether linkages, used primarily as a chelating agent and in personal care products. It forms stable complexes with metal ions due to its flexible chain and multiple oxygen donor atoms.
chelating agentpersonal care ingredient
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongStructure SimilarSimilarity 0.93
3,6-dioxaoctandioic acid
CAS23243-68-7
chelating agent intermediate
SimilarStructure SimilarSimilarity 0.79
20-Hydroxy-3,6,9,12,15,18-hexaoxaicosanoic acid
CAS120394-66-3
research compound
SimilarStructure SimilarSimilarity 0.75
2-(2-(2-Aminoethoxy)ethoxy)acetic acid
CAS134978-97-5
PEG linker for bioconjugation
SimilarStructure SimilarSimilarity 0.75
2-(2-(2-Aminoethoxy)ethoxy)acetic acid hydrochloride
CAS134979-01-4
pharmaceutical intermediate
ReferenceSame Category
Benzododecinium chloride
CAS139-07-1
antiseptic and disinfectant surfactant
ReferenceSame Category
Myristalkonium chloride
CAS139-08-2
Surfactant and biocide
ReferenceSame Category
Nitrilotriacetic acid
CAS139-13-9
chelating agent for metals
ReferenceSame Category
4-Phenoxyaniline
CAS139-59-3
Chemical intermediate for dyes and pigments
Safety Reference
Danger
H318Causes serious eye damage
Customs Tariff Classification
The international HS code for 3,6,9-Trioxaundecanedioic acid (CAS 13887-98-4) is 2918.99.
HS code (international, 6-digit)
2918.99
EU CN code (8-digit)
2918 99 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
2-[2-[2-(carboxymethoxy)ethoxy]ethoxy]acetic acid
InChIKey
HJZZQNLKBWJYPD-UHFFFAOYSA-N
SMILES
C(COCC(=O)O)OCCOCC(=O)O
Synonyms (18)
- 3,6,9-Trioxaundecandioic acid
- PEG3-(CH2CO2H)2
- TETRAGLYCOLIC ACID
- trioxaundecanedioic acid
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