L-Phenylalanine
Also known as: Phenylalanine, Phe, H-Phe-OH, L-Phe, L-beta-Phenylalanine, (S)-2-Amino-3-phenylpropanoic acid, (S)-2-Amino-3-phenylpropionic acid, (S)-(-)-Phenylalanine, (S)-Phenylalanine, 3-Phenyl-L-alanine, L-2-Amino-3-phenylpropionic acid, alpha-Aminohydrocinnamic acid, L-, beta-Phenyl-L-alanine, L-Alanine, 3-phenyl-
L-Phenylalanine (CAS 63-91-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H11NO2 and a molecular weight of 165.189 g/mol. Key properties include a melting point of 270-275ºC (dec.)(lit.), a boiling point of 307.5±30.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 139.8±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 63-91-2
- Jingsj CID
- J-39804-4
- Molecular Formula
- C9H11NO2
- Molecular Weight
- 165.189 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 270-275ºC (dec.)(lit.) |
|---|---|
| Boiling Point | 307.5±30.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 139.8±24.6 °C |
| Exact Mass | 165.078979 |
| PSA | 63.32000 |
| LogP | 1.11 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.576 |
Activity & Biological Data
| Additional Information | [1]. Mortell, K.H., et al., Structure-activity relationships of alpha-amino acid ligands for the alpha2delta subunit of voltage-gated calcium channels. Bioorg Med Chem Lett, 2006. 16(5): p. 1138-41. [2]. Glushakov, A.V., et al., Specific inhibition of N-methyl-D-aspartate receptor function in rat hippocampal neurons by L-phenylalanine at concentrations observed during phenylketonuria. Mol Psychiatry, 2002. 7(4): p. 359-67. [3]. Glushakov, A.V., et al., L-phenylalanine selectively depresses currents at glutamatergic excitatory synapses. J Neurosci Res, 2003. 72(1): p. 116-24. [4]. Glushakov, A.V., et al., Long-term changes in glutamatergic synaptic transmission in phenylketonuria. Brain, 2005. 128(Pt 2): p. 300-7. [5]. Moller, H.E., et al., Brain imaging and proton magnetic resonance spectroscopy in patients with phenylketonuria. Pediatrics, 2003. 112(6 Pt 2): p. 1580-3. |
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Customs & Trade Information
| HS Code | 29224995 |
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Frequently Asked Questions
What is the CAS number of L-Phenylalanine?
The CAS number of L-Phenylalanine is 63-91-2.
What are the molecular formula and molecular weight of L-Phenylalanine?
L-Phenylalanine has molecular formula C9H11NO2 and molecular weight 165.189 g/mol.
What are the upstream and downstream products of L-Phenylalanine?
For L-Phenylalanine, Upstream Products: DL-Phenylalanine, Benzyl bromide; Downstream Products: Boc-4-nitro-L-phenylalanine, Benzenepropanoic acid, α-[(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)oxy]-, (αR)-, 4-Hydroxycinnamic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "L-Phenylalanine (CAS 63-91-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39804-4 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.