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3,5-Dinitrosalicylic acid

Also known as: 2-Hydroxy-3,5-dinitrobenzoic acid, 3,5-Dinitro-2-hydroxybenzoic acid, 3,5-Dinitrosalicylate, Benzoic acid, 2-hydroxy-3,5-dinitro-, DNS

3,5-Dinitrosalicylic acid (CAS 609-99-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H4N2O7 and a molecular weight of 228.116 g/mol. Key properties include a melting point of 170 °C, a boiling point of 387.2±42.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 173.8±16.3 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
609-99-4
Jingsj CID
J-1105167-5
Molecular Formula
C7H4N2O7
Molecular Weight
228.116 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point170 °C
Boiling Point387.2±42.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point173.8±16.3 °C
Exact Mass228.001846
PSA149.17000
LogP2.71
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.704
Additional Propertysoluble

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H315 — Causes skin 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 3,5-Dinitrosalicylic acid?

The CAS number of 3,5-Dinitrosalicylic acid is 609-99-4.

What are the molecular formula and molecular weight of 3,5-Dinitrosalicylic acid?

3,5-Dinitrosalicylic acid has molecular formula C7H4N2O7 and molecular weight 228.116 g/mol.

Is 3,5-Dinitrosalicylic acid hazardous?

3,5-Dinitrosalicylic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 3,5-Dinitrosalicylic acid?

For 3,5-Dinitrosalicylic acid, Upstream Products: Salicylic acid, 2-Chloro-3,5-dinitrobenzoic acid, 5-Formyl-2-hydroxybenzoic acid; Downstream Products: Carbon dioxide, Chloranil, Dimethylarsinic acid.

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

Last updated:

How to cite: Jingsj. "3,5-Dinitrosalicylic acid (CAS 609-99-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1105167-5 (accessed 2026-11-09).

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