Chemical Properties:
Package: Bottle, Aluminum foil bag, Cardboard drum, 25kg/Drum, or according to customer's requirement. Storage Condition: Store in sealed containers at cool and dry place; Protect from light, moisture and pest infestation.Manufacturer with High Purity and Stable Quality Chemical Name: H-Tle-OH; L-tert-Leucine CAS: 20859-02-3 High Quality, Commercial Production| Item | Specifications |
| Appearance | White to Off-White Powder |
| Identification | IR; HPLC |
| Solubility | Soluble in Water |
| Loss on Drying | ≤0.50% |
| Residue on Ignition | ≤0.50% |
| Specific Rotation | -8.0°～ -11.0° (C=3% in Water) |
| Heavy Metals (Pb) | ≤10ppm |
| Related Substances | |
| Enantiomeric Purity | D-Ter-Leucine ≤0.50% |
| Any Other Impurity | ≤0.50% |
| Total Impurities | ≤1.0% |
| Chiral Purity | ≥99.0% |
| Assay | 98.0%~102.0% (on dried basis) |
| Storage | Preserve in well sealed container, store in cool and dried place, away from strong light and heat, when stored under above condition, the retested date is 2years away from manufactured date |
| Test Standard | Enterprise Standard |
| Usage | Amino Acid; Pharmaceutical Intermediate |
Description:
Specifications:
Package & Storage:
| Chemical Name | H-Tle-OH |
| Synonyms | L-tert-Leucine; (S)-2-Amino-3,3-dimethylbutyric Acid |
| CAS Number | 20859-02-3 |
| CAT Number | RF-PI314 |
| Stock Status | In Stock, Production Scale Up to 120 Tons/Month |
| Molecular Formula | C6H13NO2 |
| Molecular Weight | 131.17 |
| Melting Point | ≥300℃(lit.) |
| Boiling Point | 217.7±23.0℃ at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Water Solubility | 125.5 g/L (20℃) |
| Storage | Store at Room Temperature |
| Brand | Ruifu Chemical |
Advantages:
FAQ:
Application:
H-Tle-OH, L-tert-Leucine (CAS 20859-02-3) is an essential amino acid making up one third of our muscle protein. L-tert-leucine is important in developing chiral pharmaceutically active chemicals. It can also be used for the production of Chiral tridentate Schiff base ligands. It is a nonproteogen chiral amino acid. Because of the high steric hindrance of tert-butyl group, the derivatives of tert-leucine can be used as templates to induce asymmetry in asymmetric synthesis. Because of the large tert-butyl chain and its hydrophobicity, it can well control the molecular conformation in the synthesis of polypeptides, and increase the hydrophobicity of polypeptides and the stability of enzymatic degradation. Our company produces L-tert-leucine by enzymatic process, the reaction conditions are mild, not easy to cause environmental pollution. It can be used as a Nutritional Supplements, Food and Feed Additives; it can be used for synthetic Anti-AIDs drugs (Atazanavir Sulfate) and Anti-HCV drugs (Telaprevir) and etc. L-tert-Leucine (CAS 20859-02-3) also can be used in the peptide synthesis.
