4,5-Difluoro-2-methoxybenzaldehyde
4,5-二氟-2-甲氧基苯甲醛
Also known as: 4,5-Difluoro-o-anisaldehyde, Benzaldehyde, 4,5-difluoro-2-methoxy-, MFCD06246884, VHR CF DF FO1
4,5-Difluoro-2-methoxybenzaldehyde (CAS 145742-34-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H6F2O2 and a molecular weight of 172.129 g/mol. It is also known as 4,5-Difluoro-o-anisaldehyde, Benzaldehyde, 4,5-difluoro-2-methoxy- and MFCD06246884. Key properties include a melting point of 93-97°C, a boiling point of 239.2±35.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 95.7±20.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 145742-34-3
- Jingsj CID
- J-31010-5
- Molecular Formula
- C8H6F2O2
- Chinese Name
- 4,5-二氟-2-甲氧基苯甲醛
- Molecular Weight
- 172.129 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 93-97°C |
|---|---|
| Boiling Point | 239.2±35.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 95.7±20.8 °C |
| Exact Mass | 172.033585 |
| PSA | 26.30000 |
| LogP | 1.87 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.506 |
Customs & Trade Information
| HS Code | 2913000090 |
|---|---|
| Summary | HS: 2913000090 halogenated, sulphonated, nitrated or nitrosated derivatives of products of heading 2912 Educational tariff:17.0% Tax rebate rate:9.0% Regulatory conditions:none Most favored nation tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4,5-Difluoro-2-methoxybenzaldehyde?
The CAS number of 4,5-Difluoro-2-methoxybenzaldehyde is 145742-34-3.
What are the molecular formula and molecular weight of 4,5-Difluoro-2-methoxybenzaldehyde?
4,5-Difluoro-2-methoxybenzaldehyde has molecular formula C8H6F2O2 and molecular weight 172.129 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4,5-Difluoro-2-methoxybenzaldehyde (CAS 145742-34-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31010-5 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.