Cysteine hydrochloride (1:1)(CAS: 10318-18-0)

Cysteine hydrochloride (1:1) is a crystalline solid with a molecular weight of approximately 157.6 g/mol. It is highly soluble in water and slightly soluble in ethanol. Chemically, it is a weak acid due to the presence of the -COOH group and has reactive thiol groups (-SH) that can participate in various chemical reactions. It is commonly used in biochemical research and pharmaceuticals.

Cysteine hydrochloride (1:1) is typically synthesized by reacting cysteine with hydrochloric acid. The reaction is carried out in an aqueous medium, and the mixture is heated to drive off excess acid. The reaction is exothermic, and proper cooling is necessary to prevent decomposition. The product is then purified by recrystallization or chromatography.

Cysteine hydrochloride (1:1) is widely used in the pharmaceutical industry for drug synthesis and as a precursor in the production of cysteine derivatives. It is also utilized in the polymer industry for the preparation of various polymers, in the semiconductor industry for sensor fabrication, and in the food industry as a flavor enhancer and nutritional supplement.

When handling Cysteine hydrochloride (1:1), appropriate personal protective equipment (PPE) such as gloves, goggles, and lab coats should be worn. Work should be conducted in a well-ventilated area or a fume hood to avoid inhalation of vapors. Spills should be cleaned up immediately using appropriate absorbent materials, and proper disposal of waste should follow local regulations. Always consult the Safety Data Sheet (SDS) for detailed handling and emergency procedures.