L-Cysteine hydrochloride
L-Cysteine hydrochloride (CAS: 52-89-1) is a crucial derivative of the amino acid cysteine. With a molecular formula of HSCH2CH(NH2)COOH·HCl and a molecular weight of 157.62 g/mol, this compound serves as a vital building block in peptide synthesis and is utilised in various biochemical research applications. It is also recognised for its role in cellular processes and as a component in certain nutrient research areas.
Peptide Synthesis
L-Cysteine hydrochloride is an essential amino acid derivative widely employed in the synthesis of peptides and proteins. Its unique thiol group allows for specific chemical modifications and cross-linking in peptide chains.
Biochemical Research
This compound is frequently used in biochemical and cell biology research as a supplement or reagent. It plays a role in maintaining cellular redox balance and is involved in various metabolic pathways.
Nutrient Research
As a derivative of a fundamental amino acid, L-Cysteine hydrochloride finds application in studies related to nutrition and functional foods, contributing to our understanding of dietary requirements and health benefits.
Chemical Synthesis
It serves as a versatile starting material or intermediate in organic synthesis, enabling the creation of more complex molecules and specialty chemicals for diverse industrial applications.
| Molecular weight | 157.62 |
|---|---|
| Linear formula | HSCH2CH(NH2)COOH · HCl |
| Assay | ≥99.0% (RT) |
| Solubility | H2O: soluble1 M at 20 °C, clear, colorless |
| Optical activity | [α]20/D +6.4±0.3°, c = 5% in 5 M HCl |
| Loss on drying | ≤1.0% loss on drying |
| Impurities tested | ≤0.5% foreign amino acids |
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) | 36/37/38Cd: ≤5 mg/kg |
| Safety statements (S) | 26-36Co: ≤5 mg/kg |
| Cation traces | Ca: ≤10 mg/kgCd: ≤5 mg/kgCo: ≤5 mg/kgCr: ≤5 mg/kgCu: ≤5 mg/kgFe: ≤5 mg/kgK: ≤50 mg/kgMg: ≤5 mg/kgMn: ≤5 mg/kgNH4+: ≤500 mg/kgNa: ≤50 mg/kgNi: ≤5 mg/kgPb: ≤5 mg/kgZn: ≤5 mg/kg |
| Anion traces | sulfate (SO42-): ≤100 mg/kg |
| Ignition residue | ≤0.1% (as SO4) |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Uv Absorption | λ: 260 nm Amax: 1.0λ: 280 nm Amax: 0.2 |
|---|
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 used for?
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L-Cysteine hydrochloride is primarily used in peptide synthesis, biochemical research, cellular biology studies, and in some nutrient research applications. It also serves as an intermediate in chemical synthesis.
What are the CAS number and formula for L-Cysteine hydrochloride?
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The CAS number for L-Cysteine hydrochloride is 52-89-1, and its linear formula is HSCH2CH(NH2)COOH·HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies L-Cysteine hydrochloride with an assay of ≥99.0% (RT). We do not represent this product as USP, BP, or EP grade.
How should L-Cysteine hydrochloride be handled safely?
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L-Cysteine hydrochloride is a Warning substance that can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). When handling, use a dust mask type N95 (US), wear eyeshields, and gloves. Ensure good ventilation.
Is L-Cysteine hydrochloride a controlled substance?
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The provided data does not indicate that L-Cysteine hydrochloride (CAS: 52-89-1) is a controlled substance.
How is L-Cysteine hydrochloride packed, shipped, and exported?
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Tech Serve Solutions reliably packs, ships, and exports fine chemicals globally, adhering to international standards for safe and efficient transit.
How can I request a sample or quote for L-Cysteine hydrochloride?
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To request a sample or a quote for L-Cysteine hydrochloride, please contact our sales team through the website or designated contact channels.
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