4-Nitrophthalic anhydride

4-硝基邻苯二甲酸酐

Also known as: 5-nitro-1,3-isobenzofurandione, 5-nitro-2-benzofuran-1,3-dione, 1,3-Isobenzofurandione, 5-nitro-, 4-nitrophthalic acid anhydride, p-nitrophthalic anhydride

4-Nitrophthalic anhydride (CAS 5466-84-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H3NO5 and a molecular weight of 193.113 g/mol. It is also known as 5-nitro-1,3-isobenzofurandione, 5-nitro-2-benzofuran-1,3-dione and 1,3-Isobenzofurandione, 5-nitro-. Key properties include a melting point of 116-120 °C(lit.), a boiling point of 396.5±25.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 217.8±25.2 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5466-84-2
Jingsj CID
J-12383-7
Molecular Formula
C8H3NO5
Chinese Name
4-硝基邻苯二甲酸酐
Molecular Weight
193.113 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point116-120 °C(lit.)
Boiling Point396.5±25.0 °C at 760 mmHg
Density1.7±0.1 g/cm3
Flash Point217.8±25.2 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 4-Nitrophthalic anhydride?

The CAS number of 4-Nitrophthalic anhydride is 5466-84-2.

What are the molecular formula and molecular weight of 4-Nitrophthalic anhydride?

4-Nitrophthalic anhydride has molecular formula C8H3NO5 and molecular weight 193.113 g/mol.

Is 4-Nitrophthalic anhydride hazardous?

4-Nitrophthalic anhydride has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "4-Nitrophthalic anhydride (CAS 5466-84-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12383-7 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.