4-nitroperoxybenzoic acid

4-硝基过氧苯甲酸

Also known as: 4-Nitroperbenzoic acid, p-Nitroperbenzoic acid, p-Nitroperoxybenzoic acid, Benzenecarboperoxoic acid, 4-nitro-, Peroxybenzoic acid, p-nitro-, 4-nitrobenzenecarboperoxoic acid, EINECS 213-401-2, NSC 68056, Caswell No. 602A, acide p-nitroperbenzoique, p-NO2-C6H4-CO3H

4-nitroperoxybenzoic acid (CAS 943-39-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H5NO5 and a molecular weight of 183.11800 g/mol. It is also known as 4-Nitroperbenzoic acid, p-Nitroperbenzoic acid and p-Nitroperoxybenzoic acid. Key properties include a melting point of 144ºC, a boiling point of 381.4ºC at 760mmHg, a density of 1.523g/cm3 and a flash point of 184.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
943-39-5
Jingsj CID
J-1452200-4
Molecular Formula
C7H5NO5
Chinese Name
4-硝基过氧苯甲酸
Molecular Weight
183.11800 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point144ºC
Boiling Point381.4ºC at 760mmHg
Density1.523g/cm3
Flash Point184.5ºC
Exact Mass183.01700
PSA92.35000
LogP1.74780
Refractive Index1.606

Customs & Trade Information

HS Code2918300090
Summary2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-nitroperoxybenzoic acid?

The CAS number of 4-nitroperoxybenzoic acid is 943-39-5.

What are the molecular formula and molecular weight of 4-nitroperoxybenzoic acid?

4-nitroperoxybenzoic acid has molecular formula C7H5NO5 and molecular weight 183.11800 g/mol.

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

Last updated:

How to cite: Jingsj. "4-nitroperoxybenzoic acid (CAS 943-39-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1452200-4 (accessed 2026-10-28).

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