Homophthalic anhydride, 98%, Acros Organics™

Product Code	Brand	Quantity	Packaging
10466990	Acros Organics 156300050	5g	Glass bottle
10236060	Acros Organics 156300250	25g	Glass bottle
10015803	Acros Organics 156301000	100g	Glass bottle

Chemical Identifiers

• CAS: 703-59-3
• Molecular Weight (g/mol): 162.14
• InChI Key: AKHSBAVQPIRVAG-UHFFFAOYSA-N
• PubChem CID: 12801
• SMILES: C1C2=CC=CC=C2C(=O)OC1=O

• Molecular Formula: C₉H₆O₃
• MDL Number: MFCD00006894
• Synonym: homophthalic anhydride, 1,3-isochromandione, isochroman-1,3-dione, 1h-2-benzopyran-1,3 4h-dione, homophthalic acid anhydride, 4h-2-benzopyran-1,3-dione, 1h-isochromene-1,3 4h-dione, 3,4-dihydro-1h-2-benzopyran-1,3-dione, 4h-benzo c pyran-1,3-dione, homophthalic anhydride 2-carboxyphenylacetic anhydride
• IUPAC Name: 4H-isochromene-1,3-dione

Specifications

• Chemical Name or Material: Homophthalic anhydride
• Packaging: Glass bottle
• Melting Point: 140.0°C to 144.0°C
• CAS: 703-59-3
• Molecular Formula: C₉H₆O₃
• Beilstein: 17, 489
• Synonym: homophthalic anhydride, 1,3-isochromandione, isochroman-1,3-dione, 1h-2-benzopyran-1,3 4h-dione, homophthalic acid anhydride, 4h-2-benzopyran-1,3-dione, 1h-isochromene-1,3 4h-dione, 3,4-dihydro-1h-2-benzopyran-1,3-dione, 4h-benzo c pyran-1,3-dione, homophthalic anhydride 2-carboxyphenylacetic anhydride
• SMILES: C1C2=CC=CC=C2C(=O)OC1=O
• Molecular Weight (g/mol): 162.14
• Formula Weight: 162.14
• Percent Purity: 98%

• Infrared Spectrum: Authentic
• Color: Yellow to Beige
• Quantity: 5g
• Assay Percent Range: 98%
• MDL Number: MFCD00006894
• Fieser: 11,254
• InChI Key: AKHSBAVQPIRVAG-UHFFFAOYSA-N
• IUPAC Name: 4H-isochromene-1,3-dione
• PubChem CID: 12801
• Physical Form: Powder

Safety and Handling

Product Identifier

• Homophthalic anhydride

Signal Word

• Warning

Hazard Category

• Acute toxicity Category 4
• Serious eye damage/eye irritation Category 2
• Skin corrosion/irritation Category 2
• Specific target organ toxicity Category 3

Hazard Statement

• H315-Causes skin irritation.
• H319-Causes serious eye irritation.
• H335-May cause respiratory irritation.
• H302-Harmful if swallowed.

Precautionary Statement

• P261-Avoid breathing dust/fume/gas/mist/vapours/spray.
• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P301+P312-IF SWALLOWED: Call a POISON CENTER or doctor/physician/ if you feel unwell.
• P302+P352-IF ON SKIN: Wash with plenty of water/.
• P305+P351+P338-IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.