3,4-Difluoro-L-phenylalanine
Also known as: (2S)-2-amino-3-(3,4-difluorophenyl)propanoic acid, (S)-2-Amino-3-(3,4-difluorophenyl)propanoic acid, (S)-2-AMINO-3-(3,4-DIFLUORO-PHENYL)-PROPIONIC ACID, H-PHE(3,4-DIF)-OH, H-PHE(3,4-F2)-OH, H-3,4-DIFLUORO-L-PHE-OH, L-3,4-DIFLUOROPHE, L-3,4-DIFLUOROPHENYLALANINE, MFCD01075125, RARECHEM BK PT 0121, (+)-3,4-difluorophenyl alanine
3,4-Difluoro-L-phenylalanine (CAS 31105-90-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H9F2NO2 and a molecular weight of 201.170 g/mol. Key properties include a boiling point of 311.9±42.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 142.5±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 31105-90-5
- Jingsj CID
- J-1993717-8
- Molecular Formula
- C9H9F2NO2
- Molecular Weight
- 201.170 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 311.9±42.0 °C at 760 mmHg |
|---|---|
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 142.5±27.9 °C |
| Exact Mass | 201.060135 |
| PSA | 63.32000 |
| LogP | 1.13 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.536 |
Activity & Biological Data
| Additional Information | [1]. Luckose F, et al. Effects of amino acid derivatives on physical, mental, and physiological activities. Crit Rev Food Sci Nutr. 2015;55(13):1793-848. |
|---|
Customs & Trade Information
| HS Code | 2922499990 |
|---|---|
| Summary | HS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 3,4-Difluoro-L-phenylalanine?
The CAS number of 3,4-Difluoro-L-phenylalanine is 31105-90-5.
What are the molecular formula and molecular weight of 3,4-Difluoro-L-phenylalanine?
3,4-Difluoro-L-phenylalanine has molecular formula C9H9F2NO2 and molecular weight 201.170 g/mol.
What are the upstream and downstream products of 3,4-Difluoro-L-phenylalanine?
For 3,4-Difluoro-L-phenylalanine, Upstream Products: 3,4-Difluorobenzyl bromide; Downstream Products: Boc-L-3,4-difluorophenylalanine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-Difluoro-L-phenylalanine (CAS 31105-90-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993717-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.