C6H8O2
112.13 g/mol
Industrial ChemicalDanger
3,4-Dihydro-2H-pyran-2-carbaldehyde
CAS100-73-2EC202-884-5
Category
Industrial Chemical
Compound Class
Heterocycle
Primary Use
chemical intermediate for plastics
3,4-Dihydro-2H-pyran-2-carbaldehyde is an organic compound featuring an unsaturated carbonyl group conjugated with an alkene within a dihydropyran ring. It is used as a chemical intermediate primarily in the production of plastics.
chemical intermediate for plastics
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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Safety Reference
Danger
H226Flammable liquid and vapour
H312Harmful in contact with skin
H315Causes skin irritation
H318Causes serious eye damage
H332Harmful if inhaled
H335May cause respiratory irritation
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for 3,4-Dihydro-2H-pyran-2-carbaldehyde (CAS 100-73-2) 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
3,4-dihydro-2H-pyran-2-carbaldehyde
InChIKey
NPWYTMFWRRIFLK-UHFFFAOYSA-N
SMILES
C1CC(OC=C1)C=O
Synonyms (25)
- 2,6-epoxy-5-hexenal
- 2-Formyl-3,4-dihydropyran
- 2-Propenal dimer
- 2Formyl3,4dihydro2Hpyran
- 3,4-Dihydro-2-formyl-2H-pyran
- 5-Hexenal,6-epoxy-
- 5Hexenal, 2,6epoxy
- Acrolein dimer
- Acrolein dimer, stabilized
- Acroleine, dimere, stabilise
- Pyran aldehyde
- Pyrancarboxaldehyde, dihydro-
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