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| L-phenylalanine is an essential amino acid that the human body cannot synthesize. Amino acids are almost non-limiting in the proteins of most foods. It can be added to baked goods. Besides fortifying phenylalanine, it can also undergo an amino-carbonyl reaction with sugars to improve the aroma of food. It is mainly used as a raw material for the synthesis of the food sweetener aspartame in the food industry. It can also be used as a nutritional supplement. | |||||||||
63-91-2
bosschem
63-91-2
| L-Phenylalanine Basic information | |
| Description References | |
| Product Name: | L-Phenylalanine |
| CAS: | 63-91-2 |
| MF: | C9H11NO2 |
| MW: | 165.19 |
| EINECS: | 200-568-1 |
| Mol File: | 63-91-2.mol |
| L-Phenylalanine Chemical Properties | |
| 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 | 147,271 |
| 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 |
| Tests | Limits | Test results |
|---|---|---|
| Description | White crystals or crystalline powder | Crystalline powder |
| Identification (IR) | Concordant with the reference spectrum | Concordant with the reference spectrum |
| Assay | 98.5~101.5% | 99.8% |
| PH | 5.4~6.0 | 5.7 |
| Specific rotation | -33.2° ~ -35.2° | -34.3° |
| Heavy metals (Pb) | ≤20ppm | <20ppm |
| Chloride (Cl) | ≤0.021% | <0.021% |
| Lead | ≤10ppm | <10ppm |
| Arsenic (As) | ≤2ppm | <2ppm |
| Loss on drying | ≤0.2% | 0.16% |
| Residue on ignition | ≤0.1% | 0.03% |
