DL-Cysteine
DL-Cysteine (CAS 3374-22-9) is a racemic amino acid derivative with the linear formula HSCH₂CH(NH₂)COOH and a molecular weight of 121.16 g/mol. Known as (±)-2-Amino-3-mercaptopropionic acid, it is a versatile building block in chemical synthesis and peptide chemistry. Its thiol group makes it valuable in research for understanding biological processes and developing new chemical entities. This compound is supplied by TSS for laboratory and research applications.
- IUPAC
- (±)-2-Amino-3-mercaptopropionic acid
- Synonyms
- (±)-2-Amino-3-mercaptopropionic acid
Chemical Synthesis
DL-Cysteine serves as a chiral or achiral building block in the synthesis of complex organic molecules and pharmaceutical intermediates. Its reactive thiol and amino groups allow for diverse functionalisation pathways.
Peptide Chemistry
This amino acid derivative is utilized in the synthesis of peptides and peptidomimetics. It can be incorporated into peptide chains to introduce specific structural or functional properties, particularly related to sulfur-containing residues.
Biochemical Research
DL-Cysteine is employed in chemical biology to investigate enzyme mechanisms, protein structure, and redox processes. Its antioxidant properties and ability to participate in disulfide bond formation are of particular interest.
| Molecular weight | 121.16 |
|---|---|
| Linear formula | HSCH2CH(NH2)COOH |
| Assay | ≥95% (RT) |
| Melting point | 225 °C (dec.)(lit.)~225 °C |
Hazard statements
- H302Harmful if swallowed
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
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 DL-Cysteine used for?
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DL-Cysteine is primarily used in chemical synthesis, peptide chemistry, and biochemical research. It functions as a versatile building block and is investigated for its role in biological processes.
What is the CAS number and chemical formula for DL-Cysteine?
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The CAS number for DL-Cysteine is 3374-22-9. Its linear formula is HSCH₂CH(NH₂)COOH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies DL-Cysteine with an assay of ≥95% (RT). We do not represent this product as USP, BP, EP, or other pharmacopoeia grades.
How should DL-Cysteine be handled safely?
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DL-Cysteine is classified as harmful if swallowed (H302) and requires careful handling. Appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, should be worn. Ensure adequate ventilation.
How is DL-Cysteine packed, shipped, and exported?
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DL-Cysteine is carefully packaged to maintain its integrity during transport and is available for global export. Specific packaging details can be provided upon request.
How can I request a sample or quote for DL-Cysteine?
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To request a sample or a quote for DL-Cysteine, please contact our sales team through the website or by phone, providing your specific requirements.
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