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5-Nitrosalicylic acid

Also known as: 2-Hydroxy-5-nitrobenzoic acid, 5-Nitro-2-hydroxybenzoic acid, Anilotic acid, Salicylic acid, 5-nitro-, Benzoic acid, 2-hydroxy-5-nitro-, Mesalazine Impurity 21, Mesalazine Impurity N (EP), NSC 183, NSC 175998

5-Nitrosalicylic acid (CAS 96-97-9) 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 183.118 g/mol. Key properties include a melting point of 228-230 °C(lit.), a boiling point of 399.1±37.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 183.9±15.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
96-97-9
Jingsj CID
J-27724-7
Molecular Formula
C7H5NO5
Molecular Weight
183.118 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point228-230 °C(lit.)
Boiling Point399.1±37.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point183.9±15.0 °C
Exact Mass183.016769
PSA103.35000
LogP2.35
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.664

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2918290000
SummaryHS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 5-Nitrosalicylic acid?

The CAS number of 5-Nitrosalicylic acid is 96-97-9.

What are the molecular formula and molecular weight of 5-Nitrosalicylic acid?

5-Nitrosalicylic acid has molecular formula C7H5NO5 and molecular weight 183.118 g/mol.

Is 5-Nitrosalicylic acid hazardous?

5-Nitrosalicylic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 5-Nitrosalicylic acid?

For 5-Nitrosalicylic acid, Upstream Products: 2-Hydroxy-4-nitrobenzaldehyde, 2-Chloro-5-nitrobenzoic acid, Methyl 3-nitrobenzoate; Downstream Products: Methyl 5-amino-2-hydroxybenzoate, 2-methoxy-5-nitrobenzoic acid, Methyl 2-methoxy-5-nitrobenzoate.

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

Last updated:

How to cite: Jingsj. "5-Nitrosalicylic acid (CAS 96-97-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27724-7 (accessed 2026-11-09).

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