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30120

Sigma-Aldrich

L-Cysteine hydrochloride

≥99.0% (RT)

Synonym(s):

L-Cysteine hydrochloride (1:1)

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About This Item

Linear Formula:
HSCH2CH(NH2)COOH · HCl
CAS Number:
52-89-1
Molecular Weight:
157.62
Beilstein:
3560277
EC Number:
200-157-7
MDL number:
MFCD00064553
UNSPSC Code:
12352209
PubChem Substance ID:
329753437
NACRES:
NA.77

product name

L-Cysteine hydrochloride, anhydrous, ≥99.0% (RT)

Quality Level

200

Assay

≥99.0% (RT)

form

powder or crystals

optical activity

[α]20/D +6.4±0.3°, c = 5% in 5 M HCl

impurities

≤0.5% foreign amino acids

ign. residue

≤0.1% (as SO4)

loss

≤1.0% loss on drying

color

white

mp

174.1-174.7 °C

solubility

H2O: 1 g/10 mL, clear, colorless

anion traces

sulfate (SO42-): ≤100 mg/kg

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
NH4+: ≤500 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

application(s)

peptide synthesis

SMILES string

Cl[H].N[C@@H](CS)C(O)=O

InChI

1S/C3H7NO2S.ClH/c4-2(1-7)3(5)6;/h2,7H,1,4H2,(H,5,6);1H/t2-;/m0./s1

InChI key

IFQSXNOEEPCSLW-DKWTVANSSA-N

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Related Categories

Application


  • Drug delivery systems: A study utilized L-Cysteine HCl in the formulation of mixed micelles for the enhanced delivery of carvedilol, a cardiovascular drug, illustrating its utility in improving solubility and bioavailability of pharmaceutical compounds (Öztürk et al., 2022).

Biochem/physiol Actions

NMDA glutamatergic receptor agonist that is also an agonist at AMPA glutamatergic receptors at high concentrations.

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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