L-Cysteine ethyl ester hydrochloride
L-Cysteine ethyl ester hydrochloride (CAS: 868-59-7), with the linear formula HSCH₂CH(NH₂)COOC₂H₅ · HCl and a molecular weight of 185.67 g/mol, is a valuable derivative of the amino acid L-cysteine. This compound serves as a key building block in organic synthesis, particularly in the development of peptides and heterocyclic compounds. Its utility extends to chemical biology research, facilitating studies in protein structure and function. Tech Serve Solutions supplies this reagent for research and development purposes.
Peptide Synthesis
L-Cysteine ethyl ester hydrochloride is employed as a protected amino acid derivative in solid-phase and solution-phase peptide synthesis. It allows for the controlled incorporation of cysteine residues into peptide chains, preserving the thiol functionality for subsequent modifications or disulfide bond formation.
Chemical Biology Research
This compound is utilized in chemical biology to investigate protein folding, enzyme mechanisms, and the role of cysteine in biological processes. Its esterified form can influence solubility and reactivity, making it suitable for specific experimental designs.
Organic Synthesis Intermediate
As a versatile intermediate, L-Cysteine ethyl ester hydrochloride is instrumental in the synthesis of complex organic molecules, including pharmaceuticals and novel chemical entities. Its functional groups enable diverse synthetic transformations.
| Molecular weight | 185.67 |
|---|---|
| Linear formula | HSCH2CH(NH2)COOC2H5 · HCl |
| Assay | ≥98.5% (RT) |
| Optical activity | [α]20/D −12.0±1°, c = 8% in 1 M HCl |
| Melting point | 123-125 °C(lit.)126-128 °C |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 2 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is L-Cysteine ethyl ester hydrochloride used for?
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L-Cysteine ethyl ester hydrochloride is primarily used as an intermediate in peptide synthesis and organic chemistry, as well as in chemical biology research for studying protein structure and function.
What is the CAS number and formula for L-Cysteine ethyl ester hydrochloride?
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The CAS number is 868-59-7, and the linear formula is HSCH₂CH(NH₂)COOC₂H₅ · HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies L-Cysteine ethyl ester hydrochloride with an assay of ≥98.5% (RT). This is a research-grade chemical and is not represented as USP, BP, EP, or any other pharmacopoeial grade.
How should L-Cysteine ethyl ester hydrochloride be handled safely?
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Handle with care using appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator filter (type N95 or P1). Avoid contact with skin and eyes, and ensure adequate ventilation. Refer to the Safety Data Sheet for comprehensive handling information.
Is L-Cysteine ethyl ester hydrochloride a controlled substance?
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Based on the provided data, L-Cysteine ethyl ester hydrochloride (CAS: 868-59-7) is not listed as a controlled substance.
How is L-Cysteine ethyl ester hydrochloride packed and shipped?
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L-Cysteine ethyl ester hydrochloride is carefully packed according to industry standards for chemical reagents and is exported globally by Tech Serve Solutions.
How can I request a sample or quote for L-Cysteine ethyl ester hydrochloride?
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To request a sample or quote, please use the contact form on our website or reach out to our sales department with your specific requirements and shipping details.
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