5-(4-Methylphenyl)isoxazole-3-carboxaldehyde

Also known as: 5-(p-Tolyl)isoxazole-3-carboxaldehyde, 5-(4-methylphenyl)-1,2-oxazole-3-carbaldehyde, 5-(4-methylphenyl)isoxazole-3-carbaldehyde, 3-Isoxazolecarboxaldehyde, 5-(4-methylphenyl)-, MFCD06199344

5-(4-Methylphenyl)isoxazole-3-carboxaldehyde (CAS 640292-02-0) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C11H9NO2 and a molecular weight of 187.19500 g/mol. Key properties include a melting point of 69-73ºC(lit.), a boiling point of 366.7ºC at 760 mmHg, a density of 1.179g/cm3 and a flash point of 175.6ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 640292-02-0
Jingsj CID: J-28283-7
Molecular Formula: C₁₁H₉NO₂
Molecular Weight: 187.19500 g/mol
Category: Solvents
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	69-73ºC(lit.)
Boiling Point	366.7ºC at 760 mmHg
Density	1.179g/cm3
Flash Point	175.6ºC
Exact Mass	187.06300
PSA	43.10000
LogP	2.46250
Refractive Index	1.58

GHS Safety & Compliance

IrritantSignal word: Warning

H302 — Harmful if swallowed
H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. 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 5-(4-Methylphenyl)isoxazole-3-carboxaldehyde?

The CAS number of 5-(4-Methylphenyl)isoxazole-3-carboxaldehyde is 640292-02-0.

What are the molecular formula and molecular weight of 5-(4-Methylphenyl)isoxazole-3-carboxaldehyde?

5-(4-Methylphenyl)isoxazole-3-carboxaldehyde has molecular formula C11H9NO2 and molecular weight 187.19500 g/mol.

Is 5-(4-Methylphenyl)isoxazole-3-carboxaldehyde hazardous?

5-(4-Methylphenyl)isoxazole-3-carboxaldehyde has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 5-(4-Methylphenyl)isoxazole-3-carboxaldehyde?

For 5-(4-Methylphenyl)isoxazole-3-carboxaldehyde, Upstream Products: [5-(4-methylphenyl)isoxazol-3-yl]methanol, Ethyl 2,4-dioxo-4-(p-tolyl)butanoate, Ethyl 5-(p-tolyl)isoxazole-3-carboxylate; Downstream Products: [5-(4-methylphenyl)isoxazol-3-yl]methanol.

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-Methylphenyl)isoxazole-3-carboxaldehyde (CAS 640292-02-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28283-7 (accessed 2026-11-09).

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