Description
L-Leucine benzyl ester 4-toluenesulfonate is a protected L-leucine derivative offered as the 4-toluenesulfonate (tosylate) salt, with CAS number 1738-77-8 and empirical formula C₁₃H₁₉NO₂·C₇H₈O₃S. Its molar mass is 393,5 g/mol. The benzyl ester group supports selective deprotection strategies, while the tosylate counter-ion aids handling relative to the free base. Available from manufacturer Carl ROTH, the material fits biochemical and synthetic workflows that depend on defined amino-acid building blocks. Laboratories engaged in solution-phase or solid-phase peptide assembly can use it to introduce L-leucine residues with controlled stereochemistry during intermediate preparation and method development. As a catalogue biochemical, it supports research, reference, and preparative tasks in academic and industrial settings focused on enantiomerically defined leucine derivatives and protected amino-acid reagents.
This article is part of Click chemistry, bioconjugation & synthesis reagents, in Biochemicals & reagents.
Key features
- Purity (HPLC): ≥ 97 %
- Colour: white to off-white
- Form: powder
- ¹H-NMR Spectrum: corresponds to assigned structure
- CAS number: 1738-77-8
- Pack sizes: 50 g, 100 g, 250 g, 500 g
- Empirical formula: C₁₃H₁₉NO₂·C₇H₈O₃S
- Molar mass: 393,5 g/mol
- Storage temperature: +2 to +8 °C
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about L-Leucine benzyl ester 4-toluenesulfonat, e salt, 50 g
What is this article?
L-Leucine benzyl ester 4-toluenesulfonat, e salt, 50 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 Microbiology lab supplies.
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 Microbiology lab supplies.
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.
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When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.