C4H8I2
309.92 g/mol
Research ReagentWarning
1,4-Diiodobutane
CAS628-21-7EC211-032-1
Category
Research Reagent
Compound Class
Halocarbon
Primary Use
Research Compound
1,4-Diiodobutane is a research reagent used in organic synthesis. It is commonly employed in radical ring-expansion reactions, such as the Dowd–Beckwith reaction, to introduce new carbon atoms into cyclic carbonyl compounds.
Research reagent for organic synthesisReagent in radical ring-expansion reactions
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 0.88
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StrongStructure SimilarSimilarity 0.88
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SimilarStructure SimilarSimilarity 0.75
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Organic synthesis intermediate
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Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 1,4-Diiodobutane (CAS 628-21-7) is 2903.69.
HS code (international, 6-digit)
2903.69
EU CN code (8-digit)
2903 69 80
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-diiodobutane
InChIKey
ROUYUBHVBIKMQO-UHFFFAOYSA-N
SMILES
C(CCI)CI
Synonyms (10)
- 1,4-Diiodobutane
- 1,4-Diodobutane
- BUTANE, 1,4-DIIODO-
- Butane,4-diiodo-
- Tetramethylene diiodide
- Tetramethylene iodide
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