(R)-2-Amino-3-mercaptopropanoic acid hydrochloride hydrate, CAS No. 7048-04-6

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7048-04-6

Catalog No. EBD2198566

CAS 7048-04-6

Name (R)-2-Amino-3-mercaptopropanoic acid hydrochloride hydrate

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Basic Information

Synonyms: L-Cysteinehydrochloridemonohydrate L-cysteinehclmonohydrate H-Cys-OH.HCl.H2O H-Cys-OH.HCl.H_2O L-cysteinehydrochloridehydrate L-CysteneHydrochlorideMonohydrate (R)-2-Amino-3-mercaptopropanoicacidhydrochloridehydrate

Molecular Formula: C3H10ClNO3S

Molecular Weight: 175.63

MDL Number: MFCD00065606

Categories: Medicinal Chemistry > Biochemicals and Life Science Reagents > Amino Acids and Derivatives Medicinal Chemistry > Pharmaceutical Excipients > Other Pharmaceutical Excipients

Product Description:

L-Cysteine hydrochloride monohydrate is the hydrochloride salt of the naturally occurring amino acid L-cysteine, crystallized with one molecule of water. It is a white to off-white crystalline powder with a characteristic odor. This compound is highly soluble in water and ethanol, and its aqueous solution is acidic. Its primary applications are in the pharmaceutical and food industries. In pharmaceuticals, it serves as a precursor for the synthesis of various drugs and is used as a mucolytic agent to break down disulfide bonds in mucus proteins, aiding in the treatment of respiratory conditions. It also functions as a reducing agent and antioxidant in injectable formulations and as a stabilizer for certain active pharmaceutical ingredients. In the food industry, it is utilized as a dough conditioner, flavor enhancer, and antioxidant. As a source of the thiol (-SH) group, L-cysteine hydrochloride is a valuable chiral building block in organic synthesis and biochemical research. It is also used in cosmetic formulations for its antioxidant and hair-conditioning properties. Proper handling is required as it is hygroscopic and may cause irritation to the skin, eyes, and respiratory system upon exposure.

Physical Properties

Melting Point: 175°C

Boiling Point: 293.9 °C at 760 mmHg

Flash Point: 131.5 °C

Solubility: H2O: 1 M at 20 °C, clear, colorless

Refractivity: 6 ° (C=8, 1mol/L HCl)

Storage: Store at RT.

Analytical Data

Appearance: white crystalline powder