Tetrachlorophthalic anhydride, 98%

Product Code.	Quantity	unitSize
11477997	500 g	500g
11487997	2500 g	2500g
11497997	10,000 g	10000g

Product Code. 11477997

Brand: Thermo Scientific Alfa Aesar A17404.36

Description

CAS: 117-08-8 | C8Cl4O3 | 285.885 g/mol

Protection of amines as their tetrachlorophthalimide derivatives, by reaction with the anhydride in the presence of triethylamine, has been found to be useful in oligosaccharide chemistry. The group is stable to a wide range of reagents but can be selectively cleaved with ethylenediamine at lower temperatures than for the parent phthalimide derivatives; in particular, carboxylic esters are not cleaved under these conditions.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Protection of amines as their tetrachlorophthalimide derivatives, by reaction with the anhydride in the presence of triethylamine, has been found to be useful in oligosaccharide chemistry. The group is stable to a wide range of reagents but can be selectively cleaved with ethylenediamine at lower temperatures than for the parent phthalimide derivatives; in particular, carboxylic esters are not cleaved under these conditions.

Solubility
Hydrolyzes slowly in water.

Notes
Hygroscopic. Store away from oxidizing agents, acids.

Specifications

Chemical Identifiers

• CAS: 117-08-8
• Molecular Formula: C8Cl4O3
• Molecular Weight (g/mol): 285.885
• MDL Number: MFCD00005920
• InChI Key: AUHHYELHRWCWEZ-UHFFFAOYSA-N
• Synonym: tetrachlorophthalic anhydride, tetrathal, 4,5,6,7-tetrachloro-1,3-isobenzofurandione, niagathal, 1,3-isobenzofurandione, 4,5,6,7-tetrachloro, phthalic anhydride, tetrachloro, 4,5,6,7-tetrachloroisobenzofuran-1,3-dione, 1,3-dioxy-4,5,6,7-tetrachloroisobenzofuran, unii-76glw0lbek, ccris 6202
• PubChem CID: 8326
• ChEBI: CHEBI:59097
• IUPAC Name: 4,5,6,7-tetrachloro-2-benzofuran-1,3-dione
• SMILES: C12=C(C(=C(C(=C1Cl)Cl)Cl)Cl)C(=O)OC2=O

• Melting Point: 254°C to 258°C
• Boiling Point: 349°C to 354°C
• Flash Point: 362°C (683°F)
• Odor: Weak
• Quantity: 500 g
• UN Number: UN3077
• Beilstein: 211560
• Sensitivity: Moisture sensitive
• Solubility Information: Hydrolyzes slowly in water.
• Formula Weight: 285.9
• Percent Purity: 98%
• Chemical Name or Material: Tetrachlorophthalic anhydride

Safety and Handling

SDS

RUO – Research Use Only