L-Phenylalanine
Chemical Name: L-Phenylalanine
CAS Registry Number: 63-91-2
Molecular Formula: C₉H₁₁NO₂
Molecular Weight: 165.19
Appearance: White to off-white crystalline powder, free of peculiar odor
Sample Availability: Available
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Products Description of L-Phenylalanine CAS#63-91-2
This industrial grade L-Phenylalanine features a purity of no less than 99%. It is a stable crystalline substance with distinct physical parameters as follows:
Melting Point: 283–284 °C (decomposes when reaching the melting point)
Boiling Point: No fixed boiling point, as thermal decomposition occurs prior to boiling
Relative Density: 1.29 (measured at 20 °C)
Vapor Pressure: Negligible under ambient temperature of 25 °C
Solubility: Slightly soluble in water; soluble in dilute acids and dilute alkaline solutions; practically insoluble in ethanol and diethyl ether
Chemical Property: The product maintains good stability under regular storage and usage conditions. It is chemically incompatible with strong oxidizing agents, so direct contact shall be strictly avoided.
Specific Rotation: [α]D²⁰ −30.0° ~ −34.0° (c=2, water)
Aqueous Solution pH: 5.4 ~ 6.0
Parameters
| Parameter | Value |
| Melting point | 270-275 °C (dec.)(lit.) |
| alpha | -34.1 º (c=2, water, dry basis) |
| Boiling point | 293.03°C (rough estimate) |
| bulk density | 580kg/m3 |
| density | 1.29 |
| vapor pressure | <1 Pa (25 °C) |
| FEMA | 3585 | L-PHENYLALANINE |
| refractive index | -34 ° (C=2, H2O) |
| storage temp. | Store below +30°C. |
| solubility | H2O: 0.1 M at 20 °C, clear, colorless |
| form | powder |
| pka | 2.2(at 25℃) |
| color | White to off-white |
| PH | 5.0-7.0 (25℃, 0.1M in H2O) |
| Odor | at 100.00 %. odorless |
| Odor Type | odorless |
| biological source | synthetic |
| Optical Rotation | [α]25/D -34.2°, c = 2 in H2O (dried basis) |
| Water Solubility | 1-5 g/100 mL at 25 ºC |
| Merck | 14,7271 |
| JECFA Number | 1428 |
| BRN | 1910408 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| Cosmetics Ingredients Functions | HAIR CONDITIONING SKIN CONDITIONING FRAGRANCE |
| InChIKey | COLNVLDHVKWLRT-QMMMGPOBSA-N |
| LogP | 0.24 |
| CAS DataBase Reference | 63-91-2(CAS DataBase Reference) |
| NIST Chemistry Reference | L-Phenylalanine(63-91-2) |
| EPA Substance Registry System | L-Phenylalanine (63-91-2) |
| Absorption | cut-off at 274nm in H2O at 0.1M |
Safety Information
| Item | Value |
| Hazard Codes | C |
| Risk Statements | 36/37/38-34 |
| Safety Statements | 22-24/25-37/39-45-36/37/39-27-26 |
| WGK Germany | 3 |
| RTECS | AY7535000 |
| F | 10 |
| TSCA | Yes |
| HS Code | 29224995 |
| Hazardous Substances Data | 63-91-2(Hazardous Substances Data) |
Product Application of L-Phenylalanine CAS#63-91-2
L-Phenylalanine is a vital essential amino acid that cannot be independently synthesized by organisms and must be obtained from external sources. In the human body and other biological systems, it can be metabolically converted into L-tyrosine, another natural proteinogenic amino acid. After that, L-tyrosine will be further transformed into L-DOPA, and eventually synthesize a series of important neurotransmitters including dopamine, norepinephrine and epinephrine.
Manufactured in large quantities for commercial use, L-Phenylalanine has broad application prospects in diverse fields. It is widely adopted in pharmaceutical production, animal feed processing and nutritional supplement manufacturing. Besides, it acts as a key raw material for the synthesis of aspartame, a popular low-calorie artificial sweetener.
In the pharmaceutical industry, it is used to produce amino acid preparations, nutritional injections and pharmaceutical intermediates. For feed industry, it is added into animal feed to supplement essential amino acids, boost animal growth performance and raise feed utilization efficiency. In food and nutrition sectors, it is also applied to functional foods and health products to supplement daily amino acid intake.
Fast delivery time
Inventory: 2–3 working days; New production: 7–10 working days
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