L-tert-Leucine (H-Tle-OH) CAS 20859-02-3 Assay 98.0%~102.0%

Short Description:

Chemical Name: L-tert-Leucine

Synonyms: H-Tle-OH

CAS: 20859-02-3

Appearance: White to Off-White Powder

Assay: 98.0%~102.0% (on Dried Basis)

Contact: Dr. Alvin Huang

Mobile/Wechat/WhatsApp: +86-15026746401

Inquiry: alvin@ruifuchem.com

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Product Detail

Product Tags

20859-02-3 - Description:

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

20859-02-3 - Chemical Properties:

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

20859-02-3 - Specifications:

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

20859-02-3 - Package & Storage:

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.

20859-02-3 - Advantages:

20859-02-3 - FAQ:

20859-02-3 - Risk and Safety:

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

20859-02-3 - 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.