| Quantity: | |
|---|---|
61-90-5
bosschemical
61-90-5
| L-Leucine Basic information | |
| description Chemical Properties Uses toxicity | |
| Product Name: | L-Leucine |
| CAS: | 61-90-5 |
| MF: | C6H13NO2 |
| MW: | 131.17 |
| EINECS: | 200-522-0 |
| Mol File: | 61-90-5.mol |
| L-Leucine Chemical Properties | |
| Melting point | >300 °C (lit.) |
| alpha | 15.4 º (c=4, 6N HCl) |
| Boiling point | 122-134 °C(Press: 2-3 Torr) |
| bulk density | 300-400kg/m3 |
| density | 1,293 g/cm3 |
| vapor pressure | <1 hPa (20 °C) |
| refractive index | 1.4630 (estimate) |
| FEMA | 3297 | L-LEUCINE |
| Fp | 145-148°C |
| storage temp. | 2-8°C |
| solubility | 1 M HCl: 50 mg/mL |
| form | powder |
| pka | 2.328(at 25℃) |
| color | White to Off-white |
| Odor | at 100.00?%. odorless |
| PH | 5.5-6.5 (20g/l, H2O, 20℃) |
| biological source | plant |
| Optical Rotation | [α]20/D +15.5°, c = 2 in 6 M HCl |
| Water Solubility | 22.4 g/L (20 C) |
| λmax | λ: 260 nm Amax: 0.05 |
| λ: 280 nm Amax: 0.05 | |
| JECFA Number | 1423 |
| Sublimation | 145-148 ºC |
| Merck | 145,451 |
| BRN | 1721722 |
| Stability: | Stability Moisture and light sensitive. Incompatible with strong oxidising agents. |
| Cosmetics Ingredients Functions | SKIN CONDITIONING |
| ANTISTATIC | |
| HAIR CONDITIONING | |
| LogP | 0.8 |
| CAS DataBase Reference | 61-90-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Leucine(61-90-5) |
| EPA Substance Registry System | L-Leucine (61-90-5) |
| Item | Limit | Result |
|---|---|---|
| Specific rotation (α)020 | +14.9° ~ +17.3° | +15.6° |
| Assay | 98.5% ~ 101.5% | 99.52% |
| Sulfate | 108-109° C | 108.4° C |
| Chloride | ≤ 0.5% | 0.30% |
| Iron | ≤ 50 PPM | 18 PPM |
| Residue on ignition | ≤ 0.40% | 0.03% |
| Heavy metals | ≤ 0.05% | < 0.03% |
| Arsenic (As) | ≤ 1.5 ppm | < 1 ppm |
| Loss on drying | ≤ 0.20% | 0.13% |
| pH | 5.5 - 7.0 | 6.1 |
