[A16529] CAS 2421-28-5 | 3,3′,4,4′-Benzophenonetetracarboxylic dianhydride, 97+% | Alfa
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Brand: Alfa Aesar
2421-28-5 | C17H6O7 | 5-(1,3-dioxo-2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione
Chemical Identifiers
CAS
2421-28-5
Molecular Weight (g/mol)
322.23
Synonym
5-(1,3-dioxo-2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione
SMILES
O=C(C1=CC=C2C(=O)OC(=O)C2=C1)C1=CC=C2C(=O)OC(=O)C2=C1
InChI Key
VQVIHDPBMFABCQ-UHFFFAOYSA-N
Molecular Formula
C17H6O7
IUPAC Name
5-(1,3-dioxo-1,3-dihydro-2-benzofuran-5-carbonyl)-1,3-dihydro-2-benzofuran-1,3-dione
Specifications
Form
Powder or flakes
Assay (HPLC)
≥97.0%
Identification (FTIR)
Conforms (UK Sourced Material)
Comment
Material Sourced in UK and US
Appearance (Color)
White to cream to yellow to brown
설명
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.
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.
Other References:
Beilstein:761777
GHS Hazard and Precautionary Statements
Hazard Statements:H317-H319-H335
GHS H StatementH319-H335Causes serious eye irritation.May cause respiratory irritation.
Precautionary Statements:P261-P264b-P271-P272-P280-P302+P352-P304+P340-P305+P351+P338-P312-P333+P313-P363-P501c
Risk & Safety
TSCA:Yes
경고:RUO – Research Use Only
CAS2421-28-5FORMULAC17H6O7EINECS219-348-1MDLMFCD00005923
| Pakage | 100g, 2.5kg, 500g |
|---|---|
| brand | Alfa Aesar |
