C4H8O2
88.11 g/mol
Industrial ChemicalDanger
1,4-DIOXANE
CAS123-91-1EC204-661-8
Category
Industrial Chemical
Compound Class
Heterocycle
Primary Use
Solvent for cellulose esters and resins
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.
Restricted or banned substances
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Relevant lists:California Proposition 65
CAS 123-91-1
Related Compounds
StrongStructure SimilarSimilarity 1.00
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StrongStructure SimilarSimilarity 1.00
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StrongStructure SimilarSimilarity 1.00
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SimilarStructure SimilarSimilarity 0.83
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ReferenceSame Category
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Safety Reference
Danger
H225Highly flammable liquid and vapour
H319Causes serious eye irritation
H335May cause respiratory irritation
H350May cause cancer
H351Suspected of causing cancer
H332Harmful if inhaled
H336May cause drowsiness or dizziness
H372Causes damage to organs through prolonged or repeated exposure
H315Causes skin irritation
H370Causes damage to organs
H373May cause damage to organs through prolonged or repeated exposure
H313May be harmful in contact with skin
H331Toxic if inhaled
Customs Tariff Classification
The international HS code for 1,4-DIOXANE (CAS 123-91-1) is 2932.99.
HS code (international, 6-digit)
2932.99
EU CN code (8-digit)
2932 99 00
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
1,4-dioxane
InChIKey
RYHBNJHYFVUHQT-UHFFFAOYSA-N
SMILES
C1COCCO1
Synonyms (56)
- Residual Solvent Class 2 - 1,4-Dioxane, United States Pharmacopeia (USP)
- 1,4 Diethylene Ether
- 1,4-DIOXANE
- 1,4-Diethylene dioxide
- 1,4-Diethyleneoxide
- 1,4-Dioxacyclohexane
- 1,4-Dioxan
- 1,4-Dioxane, AldraSORB(TM)
- 1,4-Dioxane, SAJ first grade
- 1,4-Dioxane, anhydrous
- 1,4-Dioxane, p.a.
- 1,4-Dioxanne
- 1,4-Dioxanne [French]
- 1,4-Dioxin, tetrahydro-
- DIOXAN [MART.]
- Di(ethylene oxide)
- Diethylene dioxide
- Diethylene ether
- Diokan
- Dioksan
- Dioksan [Polish]
- Diossano-1,4
- Diossano-1,4 [Italian]
- Dioxaan-1,4
- Dioxaan-1,4 [Dutch]
- Dioxan
- Dioxan-1,4
- Dioxan-1,4 [German]
- Dioxane
- Dioxane-1,4
- Dioxanne
- Dioxanne [French]
- Dioxyethylene ether
- Glycol ethylene ether
- Glycol ethylene ether 8
- Glycolethylenether
- Tetrahydro-1,4-dioxin
- Tetrahydro-p-dioxin
- Tetrahydro-para-dioxin
- p-Dioxan
- p-Dioxan [Czech]
- p-Dioxane
- p-Dioxin, tetrahydro-
- para-Dioxane