Description
L-Leucine ethyl ester hydrochloride is an amino-acid ester salt with CAS number 2743-40-0 and empirical formula C₈H₁₇NO₂HCl. It has a molar mass of 195,69 g/mol. This protected leucine derivative from manufacturer Carl ROTH serves as a versatile intermediate in peptide chemistry, esterification studies, and the preparation of leucine-containing building blocks. The ethyl ester hydrochloride form improves handling and solubility relative to the free amino acid in many organic media, supporting coupling reactions, protecting-group strategies, and structure–activity explorations. Research groups working on peptide mimetics, prodrug concepts, or chiral amino-acid derivatives can use the defined molecular identity and pack size to plan multi-step sequences with reliable stoichiometry. The product fits standard cold-storage laboratory inventories for amino-acid chemistry and related organic synthesis applications.
This article is part of Click chemistry, bioconjugation & synthesis reagents, in Biochemicals & reagents.
Key features
- Colour: white to off-white
- Form: powder
- ¹H-NMR Spectrum: corresponds to assigned structure
- Purity (NMR): ≥ 95 %
- CAS number: 2743-40-0
- Pack sizes: 100 g, 250 g, 500 g
- Empirical formula: C₈H₁₇NO₂HCl
- Molar mass: 195,69 g/mol
- Storage temperature: +2 to +8 °C
- Product type: Amino acid ester hydrochloride
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about L-Leucine ethyl ester hydrochloride, 100 g
What is this article?
L-Leucine ethyl ester hydrochloride, 100 g is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Click chemistry, bioconjugation & synthesis reagents, inside Biochemicals & reagents, in Life Science & Microbiology.
Click and bioconjugation reagents join two molecules under mild conditions, often an azide to an alkyne, or an NHS ester to an amine. The linker length and the reactive group are the specification. They are small bottles of a reactive compound, and moisture often ruins them.
A biochemical is a molecule of life, sold as a reagent: an amino acid, a sugar, a nucleotide, a lipid, an enzyme, an antibiotic. The difference from a bulk chemical is that the use is a biological one, and the impurities that matter are the ones that change that use. An enzyme is specified by activity, not only by mass. An antibiotic is specified by potency. Papers are on PubMed. Structures are on PubChem. Strains and lines that consume these reagents are at ATCC.
Which category should I open next?
The category is Biochemicals & reagents. The sub-category is Click chemistry, bioconjugation & synthesis reagents. The catalogue is Life Science & Microbiology.
Shelves beside this one are Amino acids & peptides, Carbohydrates & sugars, Coenzymes, nucleotides & vitamins, Biochemicals (other), Enzymes & substrates, Antibiotics & antimycotics, Lipids, steroids & fatty acids and Detergents & surfactants.
What should I check before I order?
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

