1H-2-Benzopyran-1,3,4-trione

Modify Date: 2024-01-16 09:46:31

1H-2-Benzopyran-1,3,4-trione Structure
1H-2-Benzopyran-1,3,4-trione structure
 Common Name 1H-2-Benzopyran-1,3,4-trione
CAS Number 6328-17-2 Molecular Weight 176.12600
Density 1.507g/cm3 Boiling Point 338.3ºC at 760 mmHg
Molecular Formula C9H4O4 Melting Point N/A
MSDS N/A Flash Point 153.9ºC

 Names

Name isochromene-1,3,4-trione
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.507g/cm3
Boiling Point 338.3ºC at 760 mmHg
Molecular Formula C9H4O4
Molecular Weight 176.12600
Flash Point 153.9ºC
Exact Mass 176.01100
PSA 60.44000
LogP 0.56630
Index of Refraction 1.608

 Safety Information

HS Code 2932999099

 Synthetic Route

2-(methoxymethylidene)indene-1,3-dione structure

2-(methoxymethy...

CAS#:114915-50-3

~10%

1H-2-Benzopyran-1,3,4-trione Structure

1H-2-Benzopyran...

CAS#:6328-17-2

Literature: Schank, Kurt; Beck, Horst; Pistorius, Susanne Helvetica Chimica Acta, 2004 , vol. 87, # 8 p. 2025 - 2049
2-(1-ethoxyethylidene)indene-1,3-dione structure

2-(1-ethoxyethy...

CAS#:39560-91-3

~93%

Methyl acetate structure

Methyl acetate

CAS#:79-20-9

1H-2-Benzopyran-1,3,4-trione Structure

1H-2-Benzopyran...

CAS#:6328-17-2

Literature: Schank, Kurt; Beck, Horst; Pistorius, Susanne Helvetica Chimica Acta, 2004 , vol. 87, # 8 p. 2025 - 2049
2-(Carboxycarbonyl)benzoic acid structure

2-(Carboxycarbo...

CAS#:528-46-1

~%

1H-2-Benzopyran-1,3,4-trione Structure

1H-2-Benzopyran...

CAS#:6328-17-2

Literature: Tscherniac Journal of the Chemical Society, 1916 , vol. 109, p. 1238 Full Text Show Details Cornillot Annales de Chimie (Cachan, France), 1927 , vol. <10> 8, p. 121,131
2-(methoxymethylidene)indene-1,3-dione structure

2-(methoxymethy...

CAS#:114915-50-3

~80%

1H-Indene-1,2,3-trione structure

1H-Indene-1,2,3...

CAS#:938-24-9

1H-2-Benzopyran-1,3,4-trione Structure

1H-2-Benzopyran...

CAS#:6328-17-2

Literature: Schank, Kurt; Beck, Horst; Pistorius, Susanne Helvetica Chimica Acta, 2004 , vol. 87, # 8 p. 2025 - 2049
2-(1-ethoxyethylidene)indene-1,3-dione structure

2-(1-ethoxyethy...

CAS#:39560-91-3

~95%

1H-Indene-1,2,3-trione structure

1H-Indene-1,2,3...

CAS#:938-24-9

1H-2-Benzopyran-1,3,4-trione Structure

1H-2-Benzopyran...

CAS#:6328-17-2

Literature: Schank, Kurt; Beck, Horst; Pistorius, Susanne Helvetica Chimica Acta, 2004 , vol. 87, # 8 p. 2025 - 2049
2-(Carboxycarbonyl)benzoic acid structure

2-(Carboxycarbo...

CAS#:528-46-1

Acetyl chloride structure

Acetyl chloride

CAS#:75-36-5

~%

1H-2-Benzopyran-1,3,4-trione Structure

1H-2-Benzopyran...

CAS#:6328-17-2

Literature: Cornillot Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1924 , vol. 178, p. 491 Annales de Chimie (Cachan, France), 1927 , vol. <10> 8, p. 126 Full Text Show Details Kuroda; Perkin Journal of the Chemical Society, 1923 , vol. 123, p. 2105
2-(Carboxycarbonyl)benzoic acid structure

2-(Carboxycarbo...

CAS#:528-46-1

Ethanoic anhydride structure

Ethanoic anhydride

CAS#:108-24-7

~%

1H-2-Benzopyran-1,3,4-trione Structure

1H-2-Benzopyran...

CAS#:6328-17-2

Literature: Tscherniac Journal of the Chemical Society, 1916 , vol. 109, p. 1238
Thionyl chloride structure

Thionyl chloride

CAS#:7719-09-7

2-(Carboxycarbonyl)benzoic acid structure

2-(Carboxycarbo...

CAS#:528-46-1

~%

1H-2-Benzopyran-1,3,4-trione Structure

1H-2-Benzopyran...

CAS#:6328-17-2

Literature: Cornillot Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1925 , vol. 181, p. 1072 Anm. 1 Annales de Chimie (Cachan, France), 1927 , vol. <10> 8, p. 157

 Customs

HS Code 2932999099
Summary 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

phthalonic anhydride
isochroman-1,3,4-trione
Isochroman-1,3,4-trion
1H-2-Benzopyran-1,3,4-trione
Phthalonsaeure-anhydrid
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