3,3',4,4'-Benzophenonetetracarboxylic dianhydride, 97+%, Thermo Scientific Chemicals

Description

BTDA polymer fine free-flowing powder suitable for general purposes. BTDA Microfine Micronized powder facilitates mixing in epoxy resins. BTDA ultrapure high-purity, high-assay powder for critical polyimide synthesis.

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
BTDA polymer fine free-flowing powder suitable for general purposes. BTDA Microfine Micronized powder facilitates mixing in epoxy resins. BTDA ultrapure high-purity, high-assay powder for critical polyimide synthesis.

Solubility
Soluble in DMF (0.1 g/mL). Reacts with water.

Notes
Moisture Sensitive. Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Store away from strong oxidizing agents.

Specifications

Chemical Identifiers

• CAS: 2421-28-5
• Molecular Formula: C17H6O7
• Molecular Weight (g/mol): 322.228
• MDL Number: MFCD00005923
• InChI Key: VQVIHDPBMFABCQ-UHFFFAOYSA-N
• Synonym: 3,3',4,4'-benzophenonetetracarboxylic dianhydride, benzophenonetetracarboxylic dianhydride, benzophenonetetracarboxylic acid dianhydride, 1,3-isobenzofurandione, 5,5'-carbonylbis, 4,4'-carbonylbis phthalic anhydride, 4,4'-carbonyldiphthalic anhydride, 4,4'-diphthalic anhydride ketone, benzophenonetetracarboxylic anhydride, phthalic anhydride, 4,4'-carbonyldi, unii-y61gva8097
• PubChem CID: 75498
• IUPAC Name: 5-(1,3-dioxo-2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione
• SMILES: C1=CC2=C(C=C1C(=O)C3=CC4=C(C=C3)C(=O)OC4=O)C(=O)OC2=O

• Melting Point: 220°C to 226°C
• Density: 1.57
• Boiling Point: 320°C (5 mmHg)
• Flash Point: 324°C (615°F)
• Quantity: 2.5 kg
• Beilstein: 761777
• Sensitivity: Moisture sensitive
• Solubility Information: Soluble in DMF (0.1g/mL). Reacts with water.
• Formula Weight: 322.23
• Percent Purity: ≥97%
• Chemical Name or Material: 3,3',4,4'-Benzophenonetetracarboxylic dianhydride

Safety and Handling

Hazard Category	H317-H319-H335
Hazard Statement	GHS H Statement H319-H335 Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statement	P261-P264b-P271-P272-P280-P302+P352-P304+P340-P305+P351+P338-P312-P333+P313-P363-P501c
EINECSNumber	219-348-1
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only