L-Cysteine hydrochloride hydrate
L-Cysteine hydrochloride hydrate (CAS: 345909-32-2) is a hydrated salt of the amino acid L-cysteine. It presents as a white crystalline solid and is primarily utilised in chemical synthesis and biochemical research. Its structure incorporates a thiol group, making it valuable in reactions requiring a reducing agent or as a building block in peptide chemistry. Stored at 2-8°C, this compound is supplied by TSS for laboratory and industrial applications.
Chemical Synthesis
L-Cysteine hydrochloride hydrate serves as a versatile building block in organic synthesis. The thiol group is reactive, allowing for its incorporation into various complex molecules and heterocycles.
Peptide Chemistry
As a derivative of L-cysteine, this compound is employed in the synthesis of peptides. It can be used to introduce cysteine residues into peptide chains, which are crucial for protein structure and function.
Biochemical Research
In biochemical studies, L-Cysteine hydrochloride hydrate can function as a reducing agent, helping to maintain the reduced state of proteins or other biological molecules.
Amino Acid Derivative
It is utilised as a source of the amino acid cysteine in various research applications where the hydrochloride salt form offers advantages in solubility or stability.
| Molecular weight | 157.62 (anhydrous basis) |
|---|---|
| Linear formula | HSCH2CH(NH2)CO2H·HCl·xH2O |
| Assay | 99% |
| Optical activity | [α]23/D +5.2°, c = 2 in 5 M HCl |
| Storage temperature | 2-8°C |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 hydrochloride hydrate used for?
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L-Cysteine hydrochloride hydrate is primarily used in chemical synthesis, peptide chemistry, and biochemical research. It acts as a building block and a reducing agent.
What are the CAS number and formula for L-Cysteine hydrochloride hydrate?
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The CAS number is 345909-32-2. The linear formula is HSCH₂CH(NH₂)CO₂H·HCl·xH₂O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies L-Cysteine hydrochloride hydrate with an assay of 99%. We do not represent this product as USP, BP, or EP grade.
How should L-Cysteine hydrochloride hydrate be handled?
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Handle L-Cysteine hydrochloride hydrate with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Avoid breathing dust. In case of contact with eyes, rinse cautiously with water for several minutes.
How is L-Cysteine hydrochloride hydrate packed and shipped?
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L-Cysteine hydrochloride hydrate is stored at 2-8°C. TSS can export this chemical globally; please contact us for specific shipping and packaging inquiries.
How can I request a sample or quote for L-Cysteine hydrochloride hydrate?
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To request a sample or a quote for L-Cysteine hydrochloride hydrate, please contact the Tech Serve Solutions sales team via our website or direct contact details.
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