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3-Nitrophthalic anhydride, 97%

Product Code. 11482548
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Product Code. 11482548 Supplier Thermo Scientific Alfa Aesar Supplier No. A15857.22
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Estimated Shipment: 19-10-2026
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Description

CAS: 641-70-3 | C8H3NO5 | 193.11 g/mol

4-Nitrophthalic Anhydride is an intermediate for the synthesis of the benzimidazole PARP inhibitor I, ABT-472. It reacts with aminoquinazolinones to yield phthalimidoquinazolinones.

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
4-Nitrophthalic Anhydride is an intermediate for the synthesis of the benzimidazole PARP inhibitor I, ABT-472. It reacts with aminoquinazolinones to yield phthalimidoquinazolinones.

Solubility
May decompose in water.

Notes
Air sensitive. Store at room temperature. Keep away from oxidizing agents.
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 641-70-3
Molecular Formula C8H3NO5
Molecular Weight (g/mol) 193.11
MDL Number MFCD00005921
InChI Key ROFZMKDROVBLNY-UHFFFAOYSA-N
Synonym 3-nitrophthalic anhydride, 4-nitroisobenzofuran-1,3-dione, 1,3-isobenzofurandione, 4-nitro, phthalic anhydride, 3-nitro, 3-nitro phthalic anhydride, 3-nitrophthalic acid anhydride, 1,3-isobenzofurandione, nitro, 4-nitro-isobenzofuran-1,3-dione, 3-nitrophthalicanhydride, nitrophthalic anhydride
PubChem CID 21631
SMILES [O-][N+](=O)C1=CC=CC2=C1C(=O)OC2=O

Spezifikation

Melting Point 161°C to 166°C
Quantity 100 g
Beilstein 179963
Sensitivity Moisture sensitive
Solubility Information May decompose in water.
IUPAC Name 4-nitro-2-benzofuran-1,3-dione
Formula Weight 193.11
Percent Purity 97%
Chemical Name or Material 3-Nitrophthalic anhydride

RUO – Research Use Only

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