ChemicalBook--->CAS DataBase List--->1708-32-3

1708-32-3

1708-32-3 Structure

1708-32-3 Structure
IdentificationBack Directory
[Name]

2,5-Dihydrothiophene
[CAS]

1708-32-3
[Synonyms]

2,5-Dihydrothiophene
Thiophene, 2,5-dihydro-
[Molecular Formula]

C4H6S
[MDL Number]

MFCD18451851
[MOL File]

1708-32-3.mol
[Molecular Weight]

86.16
Chemical PropertiesBack Directory
[Melting point ]

-49.3°C
[Boiling point ]

122.4°C
[density ]

0.972 (estimate)
[refractive index ]

1.4800 (estimate)
Safety DataBack Directory
[Symbol(GHS) ]


GHS02,GHS07
[Signal word ]

Danger
[Hazard statements ]

H302-H225-H319-H412-H315-H332-H312-H335
[Precautionary statements ]

P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362-P280-P302+P352-P312-P322-P363-P501-P210-P233-P240-P241-P242-P243-P280-P303+P361+P353-P370+P378-P403+P235-P501-P264-P270-P301+P312-P330-P501-P273-P501-P261-P271-P304+P340-P312
Hazard InformationBack Directory
[Uses]

2,5-Dihydrothiophene is mainly used in organic synthesis and pharmaceutical intermediates.
[Preparation]

2,5-Dihydrothiophene can be obtained in reasonable yield by reaction of cis-1,4-dichloro-2-butene with anhydrous sodium sulfide in a mixture of methanol and dimethyl sulfoxide.
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