C20H24O6
360.4 g/mol
Research ReagentWarning
Crown 18
CAS14187-32-7EC238-041-3
Category
Research Reagent
Compound Class
Heterocycle
Primary Use
Research Compound
18-Crown-6 is an organic compound with six ether oxygen atoms arranged in a crown-shaped ring. It is a white, hygroscopic crystalline solid that selectively binds potassium cations, making it a valuable reagent in coordination chemistry and phase-transfer catalysis.
Ligand for potassium cationsPhase-transfer catalystResearch reagent for coordination chemistry
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 1.00
Benzo-18-crown-6
CAS14098-24-9
crown ether for metal ion complexation
StrongStructure SimilarSimilarity 1.00
Benzo-15-crown-5
CAS14098-44-3
research compound
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research compound
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ReferenceSame Category
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ReferenceSame Category
2-Bromo-6-fluorotoluene
CAS1422-54-4
research compound
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Crown 18 (CAS 14187-32-7) 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
2,5,8,15,18,21-hexaoxatricyclo[20.4.0.09,14]hexacosa-1(26),9,11,13,22,24-hexaene
InChIKey
YSSSPARMOAYJTE-UHFFFAOYSA-N
SMILES
C1COC2=CC=CC=C2OCCOCCOC3=CC=CC=C3OCCO1
Synonyms (21)
- Crown 18
- Dibenzo-18-crown 6-Ether
- Dibenzocrown
- dibenzo 18-crown-6
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