4,5,6,7-Tetrachloro-1,3-isobenzofurandione 117-08-8

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Tetrachlorophthalic anhydride CAS 117-08-8

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 4,5,6,7-Tetrachloro-1,3-isobenzofurandione; Tetrachloro-1,2-benzenedicarboxylic acid anhydride; TCPA CAS 117-08-8

Name:    Tetrachlorophthalic anhydride
Synonyms:    Tetrachlorophthalic anhydride, 98% 250GR;TETRACHLOROPHTHALIC ANHYDRIDE FOR SYNTHE;,4,5,6-Tetrachlorophthalic anhydride;Tetrachlorophthalic anhydride--TCPA;Four chlorotwoadjacentbenzeneanhydride;TETRACHLORO-1,2-BENZENEDICARBOXYLIC AN;,5,6,7-Tetrachloro-isobenzofuran-1,3-dione;1,3-Dioxo-4,5,6,7-tetrachloroisobenzofuran
CAS:    117-08-8
MF:    C8Cl4O3
MW:    285.9
EINECS:    204-171-4
 Tetrachlorophthalic Anhydride is used in the synthesis of nucleoside analogues with a specific structure as apoptosis inducing active compounds. Also used in the synthesis of carbonic anhydrase inhbitors.
4,5,6,7-Tetrachloro-1,3-isobenzofurandione; 1,3-Isobenzofurandione, 4,5,6,7-tetrachloro-; 4,5,6,7-tetrachloro-2-benzofuran-1,3-dione; Tetrachlorophthalic Anhydride;
Appearance & Physical State     white crystalline powder
Density     1.49
Boiling Point     371ºC
Melting Point     254-258ºC
Flash Point     362ºC
Refractive Index     1.656
Water Solubility     0.8 mg/L (21 ºC)
Stability     Stable. Reacts with water. Combustible. Incompatible with strong oxidizing agents. Air and moisture sensitive.
Storage Condition     Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Vapor Pressure     0.16 mm Hg ( 145 °C)
Safety Info
RTECS     TI3450000
Hazard Class     9
Safety Statements     S22-S24-S26-S37/39-S53-S60-S61
HS Code     2917399090
Product Categories:    Intermediates of Dyes and Pigments;Phthalic Acids, Esters and Derivatives;Organics;Anhydride Monomers;Monomers;Polymer Science;-
Mol File:    117-08-8.mol
Tetrachlorophthalic anhydride Structure
Tetrachlorophthalic anhydride Chemical Properties
Melting point     253-257 °C(lit.)
Boiling point     371 °C(lit.)
density     1.49
vapor pressure     0.16 mm Hg ( 145 °C)
Fp     362°C
storage temp.     Store below +30°C.
form     Flakes
color     White to off-white
Water Solubility     0.8 mg/L (21 ºC)
HS Code     29173990
Tetrachlorophthalic anhydride Usage And Synthesis
Chemical Properties    white needle-like crystals or powder
Uses    Intermediate in dyes, pharmaceuticals, plasticizers, and other organic materials; flame-retardant in epoxy resins.
Definition    ChEBI: A cyclic dicarboxylic anhydride that is phthalic anhydride chlorinated at the 4-, 5-, 6- and 7-positions.
General Description    Odorless needle-like crystals or white powder.
Tetrachlorophthalic anhydride Preparation Products And Raw materials
Preparation Products    Acid Red 92-->Solvent Red 135-->Hexahydrophthalic anhydride -->CIS-1,2-CYCLOHEXANEDICARBOXYLIC ANHYDRIDE
Raw materials    Chlorine-->SULFURIC ACID-->Chlorosulfonic acid-->Phthalic anhydride-->Iodine-->1,2-Dimethylbenzene