Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of L-tert-Leucine (H-Tle-OH) (CAS: 20859-02-3 ) with high quality. Ruifu Chemical can provide worldwide delivery, competitive price, excellent service, small and bulk quantities available. Purchase L-tert-Leucine, Please contact: alvin@ruifuchem.com
| Chemical Name | L-tert-Leucine |
| Synonyms | H-Tle-OH; (S)-2-Amino-3,3-Dimethylbutyric Acid; (S)-2-amino-3,3-Dimethylbutanoic Acid |
| CAS Number | 20859-02-3 |
| Stock Status | In Stock, Production Scale Up to 120 Tons/Month |
| Molecular Formula | C6H13NO2 |
| Molecular Weight | 131.17 |
| Melting Point | ≥300.0℃(lit.) |
| Density | 1.0±0.1 g/cm3 |
| Water Solubility | Soluble in Water |
| Storage | Store at Room Temperature |
| COA & MSDS | Available |
| Origin of Product | Shanghai, China |
| Product Categories | Amino Acid; Pharmaceutical Intermediate |
| Brand | Ruifu Chemical |
| Item | Specifications | Results |
| Appearance | White to Off-White Powder | White Powder |
| Identification | IR; HPLC | Conforms |
| Solubility | Soluble in Water | Conforms |
| Loss on Drying | ≤0.50% | 0.23% |
| Residue on Ignition | ≤0.20% | 0.06% |
| Specific Rotation | -8.0°～ -11.0° (C=3% in Water) | -9.1° |
| Heavy Metals (Pb) | ≤10ppm | <10ppm |
| Related Substances | ||
| Enantiomeric Purity | D-Ter-Leucine ≤0.50% | <0.50% |
| Any Other Impurity | ≤0.50% | <0.50% |
| Total Impurities | ≤1.00% | <1.00% |
| L-tert-Leucine Assay | 98.0%~102.0% (on Dried Basis) | 99.7% |
| Conclusion | The product has been tested and complies with the given specifications | |
Package: Bottle, Aluminum foil bag, Cardboard drum, 25kg/Drum, or according to customer's requirement.
Storage Condition: 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 2 years away from manufactured date.
Hazard Symbols Xi - Irritant
Safety Description S22 - Do not breathe dust.
S24/25 - Avoid contact with skin and eyes.
WGK Germany 3
RTECS OH2850000
HS Code 2922491990
Hazard Note Irritant
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.