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4-Nitrophthalide

Also known as: 4-nitro-3H-2-benzofuran-1-one, 4-nitro-1(3H)-isobenzofuranone, 4-nitro-3H-isobenzofuran-1-one, 4-Nitro-2-benzofuran-1(3H)-one

4-Nitrophthalide (CAS 65399-18-0) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H5NO4 and a molecular weight of 179.130 g/mol. Key properties include a melting point of 151-154ºC, a boiling point of 414.6±45.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 230.4±30.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
65399-18-0
Jingsj CID
J-1361215-2
Molecular Formula
C8H5NO4
Molecular Weight
179.130 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point151-154ºC
Boiling Point414.6±45.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point230.4±30.7 °C
Exact Mass179.021851
PSA72.12000
LogP0.61
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.633

Customs & Trade Information

HS Code2932209090
Summary2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 4-Nitrophthalide?

The CAS number of 4-Nitrophthalide is 65399-18-0.

What are the molecular formula and molecular weight of 4-Nitrophthalide?

4-Nitrophthalide has molecular formula C8H5NO4 and molecular weight 179.130 g/mol.

What are the upstream and downstream products of 4-Nitrophthalide?

For 4-Nitrophthalide, Upstream Products: 3-Nitrophthalic anhydride, 2-Methyl-3-nitrobenzoic acid, Methyl 2-(bromomethyl)-3-nitrobenzoate; Downstream Products: 3-Nitrophthalic acid, 4-Aminophthalide, 4-Bromo-2-benzofuran-1(3H)-one.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "4-Nitrophthalide (CAS 65399-18-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1361215-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.