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S-(2-Thienyl)-L-cysteine

CAS 405150-23-4C7H9NO2S2Chemical Synthesis

S-(2-Thienyl)-L-cysteine (CAS: 405150-23-4) is an unnatural amino acid derivative with the molecular formula C7H9NO2S2 and a molecular weight of 203.28 g/mol. This compound is valuable in chemical biology and synthesis, particularly within peptide chemistry. Its stereospecific enzymatic synthesis results in high optical purity, making it a key building block for research and development in specialised chemical applications.

IUPAC
(R)-2-Amino-3-(2-thienylthio)propionic acid
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S-(2-Thienyl)-L-cysteine (C7H9NO2S2) — chemical structure, CAS 405150-23-4; Chemistry, fine chemical supplied by Tech Serve Solutions
Chemical BiologyChemical SynthesisCysteine DerivativesPeptide Chemistry
01 /Applications

Chemical Synthesis

Serves as a specialised building block in organic synthesis, enabling the creation of novel molecules. Its unique structure allows for incorporation into complex synthetic routes.

Peptide Chemistry

Used as an unnatural amino acid for modifying peptide structures. Incorporation can alter peptide conformation, stability, and biological activity.

Chemical Biology Research

Facilitates studies in chemical biology by providing a non-proteinogenic amino acid for probing biological systems. It can be used to investigate protein function and interactions.

Drug Discovery & Development

Applicable as an intermediate in the discovery and development of new pharmaceutical agents. Its modified structure may confer unique pharmacological properties.

02 /Properties
Molecular weight203.28
Empirical formulaC7H9NO2S2
Assay≥95.0% (HPLC)
Optical purityee: >99% (due to stereospecific enzymatic synthesis)
Storage temperature2-8°C
03 /Safety & handling
Protective equipmentEyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
Water hazard class (WGK, DE)3

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry
CAS number
405150-23-4
MDL number
MFCD03791127
05 /Quality & supply

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.

06 /Frequently asked questions

What is S-(2-Thienyl)-L-cysteine used for?

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S-(2-Thienyl)-L-cysteine is primarily used as a building block in chemical synthesis, especially within peptide chemistry and chemical biology research. It is valuable for creating unnatural peptides and for investigating biological systems.

What is the CAS number and formula for S-(2-Thienyl)-L-cysteine?

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The CAS number for S-(2-Thienyl)-L-cysteine is 405150-23-4, and its empirical formula is C7H9NO2S2.

What grade and purity does Tech Serve Solutions supply?

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Tech Serve Solutions supplies S-(2-Thienyl)-L-cysteine with an assay of ≥95.0% (HPLC) and high optical purity (ee: >99%). We do not represent this product as USP, BP, EP, or pharmaceutical grade.

How should S-(2-Thienyl)-L-cysteine be handled and stored?

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S-(2-Thienyl)-L-cysteine should be handled with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator filter (type N95 or P1). Store at 2-8°C.

Is S-(2-Thienyl)-L-cysteine a hazardous substance?

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According to the provided data, S-(2-Thienyl)-L-cysteine has a WGK Germany classification of 3, indicating it is hazardous to water. Appropriate safety precautions must be taken during handling and disposal.

How is S-(2-Thienyl)-L-cysteine shipped by TSS?

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S-(2-Thienyl)-L-cysteine is stored at 2-8°C and exported by Tech Serve Solutions according to industry best practices for fine chemical transport.

How can I request a sample or quote for S-(2-Thienyl)-L-cysteine?

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Please contact Tech Serve Solutions directly via our website or sales representatives to request a sample or a formal quotation for S-(2-Thienyl)-L-cysteine.

Need S-(2-Thienyl)-L-cysteine in a specific grade or volume?