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2,5-Pyridinedicarboxylic acid

Also known as: Isocinchomeronic acid, Pyridine-2,5-dicarboxylic acid, 2,5-Lutidinic acid, 2,5-di-carboxy-pyridine, 6-carboxy-nicotinic acid, ICA, RARECHEM AL BO 2394, MFCD00006297

2,5-Pyridinedicarboxylic acid (CAS 100-26-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H5NO4 and a molecular weight of 167.12 g/mol. Key properties include a melting point of 242-247 °C (dec.)(lit.), a boiling point of 441.1±30.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 220.5±24.6 °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.
100-26-5
Jingsj CID
J-35540-7
Molecular Formula
C7H5NO4
Molecular Weight
167.12 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point242-247 °C (dec.)(lit.)
Boiling Point441.1±30.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point220.5±24.6 °C
Exact Mass167.021851
PSA87.49000
LogP-0.25
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.628

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2933399090
Summary2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. 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 2,5-Pyridinedicarboxylic acid?

The CAS number of 2,5-Pyridinedicarboxylic acid is 100-26-5.

What are the molecular formula and molecular weight of 2,5-Pyridinedicarboxylic acid?

2,5-Pyridinedicarboxylic acid has molecular formula C7H5NO4 and molecular weight 167.12 g/mol.

Is 2,5-Pyridinedicarboxylic acid hazardous?

2,5-Pyridinedicarboxylic 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 2,5-Pyridinedicarboxylic acid?

For 2,5-Pyridinedicarboxylic acid, Upstream Products: 5-Ethyl-2-methylpyridine, 2-Methyl-5-vinylpyridine, 2,5-Dimethylpyridine; Downstream Products: dimethyl 3-chloropyridine-2,5-dicarboxylate, Ethyl 5-cyano-2-pyridinecarboxylate, 5-((tert-Butoxycarbonyl)amino)nicotinic 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. "2,5-Pyridinedicarboxylic acid (CAS 100-26-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35540-7 (accessed 2026-11-07).

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