4-Methoxybenzaldehyde
Also known as: p-Anisaldehyde, Anisic aldehyde, Anisaldehyde, Aubepine, Obepin, Anisal, p-Methoxybenzaldehyde, 4-Anisaldehyde, FEMA 2670, MFCD00003385
4-Methoxybenzaldehyde (CAS 123-11-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H8O2 and a molecular weight of 136.148 g/mol. Key properties include a melting point of -1 °C, a boiling point of 248-249 ºC, a density of 1.121 and a flash point of 116 ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 123-11-5
- Jingsj CID
- J-1955977-3
- Molecular Formula
- C8H8O2
- Molecular Weight
- 136.148 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -1 °C |
|---|---|
| Boiling Point | 248-249 ºC |
| Density | 1.121 |
| Flash Point | 116 ºC |
| Exact Mass | 136.052429 |
| PSA | 26.30000 |
| LogP | 1.70 |
| Additional Property | 4.7 (vs air) |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.571-1.574 |
Activity & Biological Data
| Additional Information | [1]. Showler AT , et al. Effects of the Botanical Compound p-Anisaldehyde on Horn Fly (Diptera: Muscidae) Repellency, Mortality, and Reproduction. J Med Entomol. 2018 Jan 10;55(1):183-192. |
|---|
Customs & Trade Information
| HS Code | 2912499000 |
|---|---|
| Summary | 2912499000. other aldehyde-ethers, aldehyde-phenols and aldehydes with other oxygen function. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Methoxybenzaldehyde?
The CAS number of 4-Methoxybenzaldehyde is 123-11-5.
What are the molecular formula and molecular weight of 4-Methoxybenzaldehyde?
4-Methoxybenzaldehyde has molecular formula C8H8O2 and molecular weight 136.148 g/mol.
What are the upstream and downstream products of 4-Methoxybenzaldehyde?
For 4-Methoxybenzaldehyde, Downstream Products: 2-(4-methoxyphenyl)-2-oxoacetaldehyde, 2-Iodo-4-methoxybenzaldehyde.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Methoxybenzaldehyde (CAS 123-11-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1955977-3 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.