5,6,7,8-Tetrahydro-1H-2-benzopyran-1,3(4H)-dione

Modify Date: 2025-09-25 07:12:34

5,6,7,8-Tetrahydro-1H-2-benzopyran-1,3(4H)-dione Structure
5,6,7,8-Tetrahydro-1H-2-benzopyran-1,3(4H)-dione structure
Common Name 5,6,7,8-Tetrahydro-1H-2-benzopyran-1,3(4H)-dione
CAS Number 3711-74-8 Molecular Weight 166.17400
Density 1.24 g/cm3 Boiling Point 334℃
Molecular Formula C9H10O3 Melting Point 46℃
MSDS N/A Flash Point 163℃

 Names

Name 5,6,7,8-Tetrahydro-1H-isochromene-1,3(4H)-dione
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.24 g/cm3
Boiling Point 334℃
Melting Point 46℃
Molecular Formula C9H10O3
Molecular Weight 166.17400
Flash Point 163℃
Exact Mass 166.06300
PSA 43.37000
LogP 1.33050
Storage condition 2-8℃

 Safety Information

HS Code 2918990090

 Customs

HS Code 2918990090
Summary 2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

 Synonyms

5,6,7,8-tetrahydro-4H-isochromene-1,3-dione
5,6,7,8-Tetrahydro-homophthalsaeureanhydrid
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