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L-Cysteine hydrochloride monohydrate

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Identification
Molecular formula
C3H9ClN2O2S
CAS number
7048-04-6
IUPAC name
(2R)-2-amino-3-sulfanyl-propanoic acid;hydrate;hydrochloride
State
State

At room temperature, L-Cysteine hydrochloride monohydrate is in the solid state, typically appearing as a fine white powder.

Melting point (Celsius)
175.00
Melting point (Kelvin)
448.15
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
175.64g/mol
Molar mass
175.6400g/mol
Density
1.5000g/cm3
Appearence

L-Cysteine hydrochloride monohydrate appears as a white crystalline powder. It is commonly used in pharmaceuticals and food industries due to its stabilizing properties and sulfur content.

Comment on solubility

Solubility of (2R)-2-amino-3-sulfanyl-propanoic acid;hydrate;hydrochloride

(2R)-2-amino-3-sulfanyl-propanoic acid;hydrate;hydrochloride, commonly referred to as a hydrophilic compound, exhibits significant solubility in water due to its ionic nature. This property can be attributed to several factors:

  • Charge Distribution: The presence of a hydrochloride group contributes a positive charge that enhances interaction with polar water molecules.
  • Hydration Ability: Being a hydrophilic compound, it readily forms hydrogen bonds with water, leading to higher solubility.
  • Temperature Influence: Like many amino acids, solubility may increase with temperature, allowing greater interaction with solvated molecules.

In general, the solubility of this compound can be characterized as:

  • High solubility in aqueous solutions due to ionization.
  • Low solubility in organic solvents, as its polar characteristics discourage dissolution in nonpolar environments.

It is important to note that, according to studies, “the hydrophilicity of amino acids and their derivatives significantly influences their solubility—largely impacting their bioavailability and environmental interactions.” This understanding is crucial for practical applications in pharmaceuticals and biochemistry, where solubility plays a pivotal role in drug formulation and delivery.

Interesting facts

Interesting Facts about (2R)-2-amino-3-sulfanyl-propanoic Acid; Hydrate; Hydrochloride

(2R)-2-amino-3-sulfanyl-propanoic acid, commonly known as cysteine, is a fascinating and essential compound for life. Here are some captivating insights:

  • Building Block of Proteins: Cysteine plays a critical role as a proteinogenic amino acid, meaning it is one of the building blocks used to synthesize proteins. It contains a thiol (-SH) group, which can form disulfide bonds with other cysteine residues, stabilizing protein structure.
  • Antioxidant Properties: This compound is a precursor to the powerful antioxidant glutathione. Glutathione is crucial for protecting cells against oxidative stress and maintaining cellular health.
  • Biological Significance: Cysteine is involved in various metabolic processes, including the synthesis of important biomolecules such as neurotransmitters and coenzymes. It is vital for detoxification and plays a role in cellular signaling pathways.
  • Dietary Source: Humans obtain cysteine primarily through diet. It is found in high-protein foods such as poultry, eggs, yogurt, and garlic. Its presence as a semi-essential amino acid means it can be synthesized in the body when necessary.
  • Cultural Importance: Cysteine has gained attention in popular culture, notably for its presence in the beauty and health supplement industry, where it is promoted for skin health and hair growth.
  • Hydration Factor: The hydrate form emphasizes the importance of water in maintaining the stability and reactivity of this amino acid, further reflecting the intricate relationship between chemical compounds and their environments.

In summary, cysteine's multifaceted roles in biochemistry, its significance in health, and its unique chemical properties make it a compound of great interest. Understanding this amino acid contributes to advances in fields ranging from nutrition to pharmacology.

Synonyms
L-Cysteine hydrochloride monohydrate
7048-04-6
H-Cys-OH.HCl.H2O
L-Cysteine hydrochloride hydrate
(R)-2-Amino-3-mercaptopropanoic acid hydrochloride hydrate
cysteine hydrochloride monohydrate
Cysteine HCl
345909-32-2
MFCD00065606
L-CYSTEINE HCl MONOHYDRATE
L-Cysteine monohydrate monochloride
DL-Cysteine HCl Monohydrate
Cysteine, hydrochloride, hydrate (1:1:1)
ZT934N0X4W
(2R)-2-amino-3-sulfanylpropanoic acid;hydrate;hydrochloride
(R)-2-Amino-3-mercaptopropanoic acid hydrochloride xhydrate
L-cysteine hydrate hydrochloride
L-Cysteine (hydrochloride hydrate)
L-cysteine monohydrochloride monohydrate
H-Cys-OH.HCl
Cysteine hydrochloride (USP)
Cysteine hydrochloride [USP]
(2R)-2-Amino-3-sulfanyl-propanoic acid hydrochloride monohydrate
L-CysteineHclMonohydrate
345909-32-2 (.xH2O)
Elcys (TN)
Cysteine hydrochloride monohydrate, L-
UNII-ZT934N0X4W
SCHEMBL43390
cysteine hydrochloride hydrate
CHEBI:91248
DTXSID90990688
Cysteini hydrochloridum monohydricum
HY-W016715R
AC8040
CYSTEINE HYDROCHLORIDE [VANDF]
AKOS015855408
AKOS015907763
CS-W017431
FC16021
HY-W016715
L-Cysteine hydrochloride hydrate, 99%
L-cysteine monohydrochloride-monohydrate
NSC 755898
L-cysteine hydrochloride--water (1/1)
FL168430
L-Cysteine hydrochloride hydrate (JP17)
L-CYSTEINE MONOHYDROCHLORIDE [FCC]
TS-03861
CYSTEINE HYDROCHLORIDE [ORANGE BOOK]
NS00078059
L-Cysteine (hydrochloride hydrate) (Standard)
L-CYSTEINE HYDROCHLORIDE HYDRATE [JAN]
L-CYSTEINE, HYDROCHLORIDE, MONOHYDRATE
CYSTEINE, L-, HYDROCHLORIDE MONOHYDRATE
D02326
EC 615-117-8
L-Cysteine hydrochloride monohydrate, USP grade
SBI-0633588.0002
L-Cysteine hydrochloride hydrate,98.5-101.5%
CYSTEINE HYDROCHLORIDE MONOHYDRATE [WHO-DD]
L-Cysteine hydrochloride monohydrate, p.a., 98.5%
L-Cysteine hydrochloride monohydrate, >=99.0% (RT)
L-CYSTEINE, HYDROCHLORIDE, HYDRATE (1:1:1)
Q27163159
(R)-2-Amino-3-mercaptopropanoicacidhydrochloridexhydrate
L-Cysteine hydrochloride monohydrate, BioUltra, >=99.0% (RT)
(1R)-1-carboxy-2-sulfanylethan-1-aminium chloride--water (1/1)
L-Cysteine hydrochloride monohydrate, JIS special grade, >=99.0%
L-Cysteine hydrochloride monohydrate, reagent grade, >=98% (TLC)
L-Cysteine hydrochloride monohydrate, tested according to Ph.Eur.
(R)-2-Amino-3-mercaptopropionic acid hydrochloride monohydrate;L-Cys-OH.HCl.H2O
Cysteine hydrochloride monohydrate, European Pharmacopoeia (EP) Reference Standard
L-Cysteine hydrochloride, United States Pharmacopeia (USP) Reference Standard
L-Cysteine hydrochloride monohydrate, 99%, FG, produced by Wacker Chemie AG, Burghausen, Germany
L-Cysteine hydrochloride monohydrate, FG, produced by Wacker Chemie AG, Burghausen, Germany, Food, 20 mesh
L-Cysteine hydrochloride monohydrate, from non-animal source, cell culture tested, meets EP, USP testing specifications
L-Cysteine hydrochloride monohydrate, Pharmaceutical Secondary Standard; Certified Reference Material
L-Cysteine hydrochloride monohydrate, Produced by Wacker Chemie AG, Burghausen, Germany, Life Science, 98.5-101.0% (Ph.Eur (2.2.20))