Methyl 3-(4-methoxyphenyl)oxirane-2-carboxylate

Also known as: Methyl trans-3-(4-methoxyphenyl)glycidate, Methyl 3-(p-methoxyphenyl)-2,3-epoxypropionate, Methyl 3-(4-methoxyphenyl)-2-oxiranecarboxylate, 3-(4-Methoxyphenyl)glycidic acid methyl ester, Methyl 3-(p-methoxyphenyl)oxirane-2-carboxylate, Oxiranecarboxylic acid, 3-(4-methoxyphenyl)-, methyl ester, EINECS 255-735-1, MFCD00012316, trans-2,3-Epoxy-3-(4-methoxyphenyl)propionic acid methyl ester

Methyl 3-(4-methoxyphenyl)oxirane-2-carboxylate (CAS 42245-42-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H12O4 and a molecular weight of 208.211 g/mol. Key properties include a melting point of 69-71ºC(lit.), a boiling point of 297.7±40.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 129.2±27.4 °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.: 42245-42-1
Jingsj CID: J-13290-1
Molecular Formula: C₁₁H₁₂O₄
Molecular Weight: 208.211 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	69-71ºC(lit.)
Boiling Point	297.7±40.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	129.2±27.4 °C
Exact Mass	208.073563
PSA	48.06000
LogP	1.27
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.534

GHS Safety & Compliance

IrritantSignal word: Warning

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

Frequently Asked Questions

What is the CAS number of Methyl 3-(4-methoxyphenyl)oxirane-2-carboxylate?

The CAS number of Methyl 3-(4-methoxyphenyl)oxirane-2-carboxylate is 42245-42-1.

What are the molecular formula and molecular weight of Methyl 3-(4-methoxyphenyl)oxirane-2-carboxylate?

Methyl 3-(4-methoxyphenyl)oxirane-2-carboxylate has molecular formula C11H12O4 and molecular weight 208.211 g/mol.

Is Methyl 3-(4-methoxyphenyl)oxirane-2-carboxylate hazardous?

Methyl 3-(4-methoxyphenyl)oxirane-2-carboxylate 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 Methyl 3-(4-methoxyphenyl)oxirane-2-carboxylate?

For Methyl 3-(4-methoxyphenyl)oxirane-2-carboxylate, Upstream Products: 4-Methoxybenzaldehyde, Methyl chloroacetate, methyl (E)-4-methoxycinnamate; Downstream Products: 2-(4-Methoxyphenyl)acetaldehyde, methyl (2R,3S)-3-(4-methoxyphenyl)glycidate.

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. "Methyl 3-(4-methoxyphenyl)oxirane-2-carboxylate (CAS 42245-42-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13290-1 (accessed 2026-11-09).

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