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Cyclobutane-1,2,3,4-Tetracarboxylic Dianhydride

Cyclobutane-1,2,3,4-Tetracarboxylic Dianhydride / CAS : 4415-87-6

Appearance White powder UN 1759
HS 2917209090 DG Class 8
Synonyms 3a,3b,6a,6b-Tetrahydrocyclobuta[1,2-c:3,4-c']Difuran-1,3,4,6-Tetrone; 4,9-Dioxatricyclo[5.3.0.02,6]Decane-3,5,8,10-Tetrone; Cyclobutane1,2,3,4-Tetracarboxylicacid1,2:3,4-Dianhydride; Cyclobutane-1,2,3,4-Tetracarboxylic acid Dianhydride; Cyclobutane-1,2,3,4-Tetracarboxylic; 1,2,3,4-Cyclobutanetetracarboxylic Dianhydride; Cyclobuta[1,2-c:3,4-c']Difuran-1,3,4,6(3aH,3bH,6aH,6bH)-Tetraone; Maleic Anhydride Cyclic Dimer; Cyclobutanetetracarboxylic Dianhydride; 1,2,3,4-Cyclobutanetetracarboxylic acid Dianhydride; Cyclobutanetetracarboxylic acid Dianhydride; Tetrahydrocyclobuta[1,2-c:3,4-c']Difuran-1,3,4,6-Tetrone; Tetrahydrofuro[3',4':3,4]Cyclobuta[1,2-c]Furan-1,3,4,6-Tetrone; Cyclobuta[1,2-c:3,4-c']Difuran-1,3,4,6-Tetrone, Tetrahydro-; Tetrahydro-2,5-Dioxa-Cyclobutadicyclopentene-1,3,4,6-Tetraone; 1,2,3,4-Cyclobutanetetracarboxylic1,2,3,4-Dianhydride; 1Alpha,2Alpha,3beta,4beta-Cyclobutanetetracarboxylic acid 1,2:3,4-Dianhydride; Methyl4-Chloro-6-OXO-1-[3-(Trifluoromethyl)Phenyl]-1,6-Dihydro-3-Pyridazinecarboxylate
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Properties

Summary

Formula
C8H4O6
Molecular Mass
196.11400
Exact Mass
196.00100
PSA
86.74000
Logp
-1.36840
IUPAC
4,9-dioxatricyclo[5.3.0.02,6]decane-3,5,8,10-tetrone
SMILES
C12C(C3C1C(=O)OC3=O)C(=O)OC2=O

Attribute classification

Matter Classification
organic
Category
API & Intermediate > Pharmaceutical Intermediates

Chemical and Physical Properties

Melting Point
>300 °C(lit.)
Density
1.8±0.1 g/cm3
Boiling Point
545.3±50.0 °C at 760 mmHg
Flash Point
253.7±30.2 °C
Appearance
White powder

Export information

HS Code
2917209090
Export Rebate
13%
UN No.
1759
DG-Class
8
Risk Code
R36/37/38
Safety Label
Xi

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