5-Aminophthalide

About 5-Aminophthalide

5-Aminophthalide is an ester carrying the CAS registry number 65399-05-5. Formula C8H7NO2, molecular weight 149.15 g/mol. Systematically, it is named 5-amino-3H-2-benzofuran-1-one. It is also known as 5-Amino-2-benzofuran-1(3H)-one or 1-Oxo-1,3-dihydroisobenzofuran-5-amine.

Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 5 hazard statements. Review the Safety Data Sheet before use.

Key uses span organic synthesis and API synthesis. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, 5-Aminophthalide is dispatched with a Certificate of Analysis (COA) to destinations worldwide. Stock is available for quick dispatch. A Safety Data Sheet (SDS) and technical specifications are available on request. Larger quantities and custom packaging are available. Request a quote for pricing and lead time.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	5-Aminophthalide
Catalogue No.	VQ-008698
CAS Number	65399-05-5
IUPAC name	5-amino-3H-2-benzofuran-1-one
Molecular formula	C₈H₇NO₂
Molecular weight	149.15 g/mol
Exact mass	149.0477
Grade	Reference Standard
HSN code	2933
InChIKey	ISMUWQMUWFPFBZ-UHFFFAOYSA-N
SMILES	C1C2=C(C=CC(=C2)N)C(=O)O1
PubChem CID	720669

Physical properties
Physical form	Other
LogP (XLogP3)	0.1
H-bond donors / acceptors	1 / 3
TPSA	52.3 Å²
Synonyms	5-Amino-2-benzofuran-1(3H)-one, 1-Oxo-1,3-dihydroisobenzofuran-5-amine, 5-Amino-1,3-dihydroisobenzofuran-1-one, 5-Amino-3H-benzofuran-1-one, 5-Aminoisobenzofuran-1(3H)-one, 5-Amino-3H-isobenzofuran-1-one, 1(3H)-Isobenzofuranone, 5-amino-, 5-amino-1,3-dihydro-2-benzofuran-1-one, 5-amino-3-hydroisobenzofuran-1-one, 5-Amino-1(3H)-isobenzofuranone, 5-amino-phthalide, 5-Aminophenyl Phthalein

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H412Harmful to aquatic life with long lasting effects

Precautionary statements: P261, P264, P264 + P265, P270, P271, P273, P280, P301 + P316, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 5-Aminophthalide?

The CAS Registry Number of 5-Aminophthalide is 65399-05-5. It is also known as 5-Amino-2-benzofuran-1(3H)-one, 1-Oxo-1,3-dihydroisobenzofuran-5-amine, 5-Amino-1,3-dihydroisobenzofuran-1-one.

What is the molecular formula and molecular weight of 5-Aminophthalide?

5-Aminophthalide has the molecular formula C8H7NO2 and a molecular weight of 149.15 g/mol. Its IUPAC name is 5-amino-3H-2-benzofuran-1-one.

Which grade and pack sizes of 5-Aminophthalide can I order?

We supply 5-Aminophthalide in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 5-Aminophthalide?

Yes. Every lot of 5-Aminophthalide is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 5-Aminophthalide be shipped internationally?

Yes. 5-Aminophthalide is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.