5-(4-Nitrophenyl)-2-furoic acid

Also known as: 5-(4-Nitrophenyl)-2-furancarboxylic acid, 5-(4-Nitrophenyl)furan-2-carboxylic acid, 5-(4-Nitro-phenyl)-furan-2-carboxylic acid, 5-(p-Nitrophenyl)-2-furoic acid, 5-(4-Nitrophenyl)-2-furoate, NPFA, AKOS BB-8339, ART-CHEM-BB B025354, ASISCHEM T31195, RARECHEM AL BE 0741

5-(4-Nitrophenyl)-2-furoic acid (CAS 28123-73-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H7NO5 and a molecular weight of 233.17700 g/mol. Key properties include a melting point of 255-257 °C (dec.)(lit.), a boiling point of 451.4ºC at 760mmHg, a density of 1.44g/cm3 and a flash point of 226.8ºC. 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.: 28123-73-1
Jingsj CID: J-19692-9
Molecular Formula: C₁₁H₇NO₅
Molecular Weight: 233.17700 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	255-257 °C (dec.)(lit.)
Boiling Point	451.4ºC at 760mmHg
Density	1.44g/cm3
Flash Point	226.8ºC
Exact Mass	233.03200
PSA	96.26000
LogP	3.07620
Vapor Pressure	6.16E-09mmHg at 25°C

GHS Safety & Compliance

IrritantSignal word: Warning

H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Customs & Trade Information

HS Code	2932190090
Summary	2932190090 other compounds containing an unfused furan ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 5-(4-Nitrophenyl)-2-furoic acid?

The CAS number of 5-(4-Nitrophenyl)-2-furoic acid is 28123-73-1.

What are the molecular formula and molecular weight of 5-(4-Nitrophenyl)-2-furoic acid?

5-(4-Nitrophenyl)-2-furoic acid has molecular formula C11H7NO5 and molecular weight 233.17700 g/mol.

Is 5-(4-Nitrophenyl)-2-furoic acid hazardous?

5-(4-Nitrophenyl)-2-furoic 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-(4-Nitrophenyl)-2-furoic acid?

For 5-(4-Nitrophenyl)-2-furoic acid, Upstream Products: 2-Furoic acid, 5-(4-Nitrophenyl)-2-furaldehyde; Downstream Products: 5-(4-nitrophenyl)furan-2-carbonyl chloride.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-(4-Nitrophenyl)-2-furoic acid (CAS 28123-73-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19692-9 (accessed 2026-11-09).

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