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| Insoluble in anhydrous ethanol, ether and acetone, soluble in dilute acid or dilute alkali. | |||||||||
60-18-4
bosschemical
60-18-4
| Tyrosine non-essential amino acid Tyrosine in human metabolism tyrosine kinase Tyrosine iodide Neuropeptide tyrosine Melanin Identification test Content Analysis Toxicity Limited use Chemical Properties Uses Production Method | |
| Product Name: | L-Tyrosine |
| CAS: | 60-18-4 |
| MF: | C9H11NO3 |
| MW: | 181.19 |
| EINECS: | 200-460-4 |
| Mol File: | 60-18-4.mol |
| L-Tyrosine Chemical Properties | |
| Melting point | >300 °C (dec.) (lit.) |
| alpha | -11.65 º (c=5,DIL HCL/H2O 50/50) |
| Boiling point | 314.29°C (rough estimate) |
| bulk density | 300kg/m3 |
| density | 1.34 |
| FEMA | 3736 | L-TYROSINE |
| refractive index | -12 ° (C=5, 1mol/L HCl) |
| Fp | 176 °C |
| storage temp. | Store below +30°C. |
| solubility | 1 M HCl: 25 mg/mL |
| pka | 2.2(at 25℃) |
| form | powder |
| color | White to Pale-brown |
| PH | 6.5 (0.1g/l, H2O) |
| Odor | odorless |
| Odor Type | odorless |
| optical activity | [α]20/D 11.5±1.0°, c = 4% in 1 M HCl |
| biological source | rabbit |
| Water Solubility | 0.45 g/L (25 ºC) |
| Merck | 149,839 |
| JECFA Number | 1434 |
| BRN | 392441 |
| Stability: | Stable. Incompatible with strong oxidizing agents, strong reducing agents. |
| InChIKey | OUYCCCASQSFEME-QMMMGPOBSA-N |
| LogP | 0.38 |
| CAS DataBase Reference | 60-18-4(CAS DataBase Reference) |
| NIST Chemistry Reference | Tyrosine(60-18-4) |
| EPA Substance Registry System | L-Tyrosine (60-18-4) |
| Absorption | cut-off at 310nm in 1 M HCl at 0.5M |
Item | Standard | Analysis data |
Appearance | White crystals or crystalline powder | Conforms |
Specific rotation[α]20/D (C=5,1mol/L HCL) | -11.3° to -12.1° | -11.43° |
State of solution (Transmittance) | Not less than 95.0% | 95.3% |
Chloride (Cl) | Not more than 0.020% | <0.02% |
Ammonium (NH4) | Not more than 0.02% | <0.02% |
Sulfate (SO4) | Not more than 0.020% | <0.02% |
Iron(Fe) | Not more than 20ppm | <20ppm |
Heavy metal(Pb) | Not more than 10ppm | <10ppm |
Arsenic(As2O3) | Not more than 1ppm | <1ppm |
Loss on drying | Not more than 0.20% | 0.06% |
Residue on ignition(sulated) | Not more than 0.20% | 0.09% |
Assay | 98.5 to100.5% | 99.30% |
pH | 5.0 to 6.5 | 5.18 |
