Cysteine hydrochloride (1:1)

Basic Information

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CAS Number

10318-18-0

Molecular Formula

C3H8ClNO2S

Molecular Weight

157.62 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Amines

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Water Treatment Chemicals Disinfectants Chlorine Compounds

Basic Physical Properties

Melting Point

109-112 ºC

Solubility

H2O: soluble

SMILES

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C(C(C(=O)O)N)S.Cl

InChI

InChI=1S/C3H7NO2S.ClH/c4-2(1-7)3(5)6;/h2,7H,1,4H2,(H,5,6);1H

InChIKey

IFQSXNOEEPCSLW-UHFFFAOYSA-N

LogP

-0.25010000000000004

Topological Polar Surface Area

63.32000000000001 Å²

Hydrogen Bond Donor/Acceptor

3 / 3

Complexity

75.3

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Sensitiveness

Air Sensitive & Hygroscopic

Synonyms & References

English

2-amino-3-mercaptopropanoic acid hydrochloride
FT-0650774
SY033289
DTXSID00920537
CYSTEINE, (L)
DL-Cysteine hydrochloride
L-Cystein-hydrochloride
AKOS003726073
DL-CysteineHydrochloride
DL-Cysteine hydrochloride anhydrous
MFCD00064552
(RS)-cysteine hydrochloride
DL-2-Amino-3-mercaptopropionic acid hydrochloride
FD21265
DL-CYSTEINE HCL
CYSTEINE HYDROCHLORIDE
FT-0639023
FT-0627749
WLN: SH1YZVQ &GH -L
10318-18-0
NSC8746
EINECS 233-698-2
L-Cysteine hydrochloride?
EN300-30057
IFQSXNOEEPCSLW-UHFFFAOYSA-N
Pharmakon1600-01300014
DL-Cysteine hydrochloride, >=95% (TLC), anhydrous
H-DL-Cys-OH.HCl
(R)-Cysteine-hydrochloride
B0689-015184
NSC755898

MDL Number

MFCD00064552

Customs Code

2930909090

FAQ

What are the physical and chemical properties of 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.

How is Cysteine hydrochloride (1:1) (CAS: 10318-18-0) typically synthesized?

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.

What industries use Cysteine hydrochloride (1:1) (CAS: 10318-18-0)?

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.

What precautions should be taken when handling Cysteine hydrochloride (1:1) (CAS: 10318-18-0)?

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.