5-Nitro-2-furancarboxylic acid

5-硝基-2-呋喃甲酸

Also known as: 5-Nitro-2-furoic acid, 5-nitrofuran-2-carboxylic acid, 2-Carboxy-5-nitrofuran, 5-Nitropyromucic acid, 5-Nitrofuran-2-carboxylic acid

5-Nitro-2-furancarboxylic acid (CAS 645-12-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3NO5 and a molecular weight of 157.08100 g/mol. It is also known as 5-Nitro-2-furoic acid, 5-nitrofuran-2-carboxylic acid and 2-Carboxy-5-nitrofuran. Key properties include a melting point of 185-189 °C(lit.), a boiling point of 332ºC and a density of 1.72 g/cm3 (-53 C). GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
645-12-5
Jingsj CID
J-15943-2
Molecular Formula
C5H3NO5
Chinese Name
5-硝基-2-呋喃甲酸
Molecular Weight
157.08100 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point185-189 °C(lit.)
Boiling Point332ºC
Density1.72 g/cm3 (-53 C)

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 5-Nitro-2-furancarboxylic acid?

The CAS number of 5-Nitro-2-furancarboxylic acid is 645-12-5.

What are the molecular formula and molecular weight of 5-Nitro-2-furancarboxylic acid?

5-Nitro-2-furancarboxylic acid has molecular formula C5H3NO5 and molecular weight 157.08100 g/mol.

Is 5-Nitro-2-furancarboxylic acid hazardous?

5-Nitro-2-furancarboxylic acid 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. "5-Nitro-2-furancarboxylic acid (CAS 645-12-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15943-2 (accessed 2026-10-22).

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