A5251212
L-tert-Leucine , 99% , 20859-02-3
Synonym(s):
(S)-2-Amino-3,3-dimethylbutyric acid;(S)-2-Amino-4-methylpentanoic acid;L -α-tert-Butylglycine;L -Leucine
CAS NO.：20859-02-3
Empirical Formula: C6H13NO2
Molecular Weight: 131.17
MDL number: MFCD00064218
EINECS: 200-522-0
| Pack Size | Price | Stock | Quantity |
| 1G | RMB23.20 | In Stock |
|
| 5G | RMB31.20 | In Stock |
|
| 25G | RMB39.20 | In Stock |
|
| 100G | RMB87.20 | In Stock |
|
| 500g | RMB351.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | ≥300 °C (lit.) |
| alpha | 6.3 º (c=4, 6 N HCl 200 ºC) |
| Boiling point: | 217.7±23.0 °C(Predicted) |
| Density | 1.1720 (estimate) |
| refractive index | -9 ° (C=3, H2O) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | 1 M HCl: 50 mg/mL |
| form | powder |
| pka | 2.39±0.12(Predicted) |
| color | White to almost white |
| optical activity | [α]20/D 9.5°, c = 3 in H2O |
| Water Solubility | 125.5 g/L (20 ºC) |
| BRN | 1721824 |
| InChIKey | NPDBDJFLKKQMCM-SCSAIBSYSA-N |
Description and Uses
L-tert-Leucine is an essential amino acid and makes up one third of our muscle protein. It can be used as a food additive. It is used in the formation of sterols. It is used in the production of cobalt oxazoline palladacycles complex, which acts as a catalyst in the rearrangement of prochiral N-aryl trifluoroacetimidates to allylic amides yielded in significantly higher enantioselectivities with the (S)-(pR)-diasteroisomer.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319 |
| Precautionary statements | P264-P280-P302+P352-P305+P351+P338-P332+P313-P337+P313-P362 |
| Hazard Codes | Xi |
| Safety Statements | 22-24/25 |
| WGK Germany | 3 |
| RTECS | OH2850000 |
| Hazard Note | Irritant |
| HS Code | 29224999 |
