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30129

Sigma-Aldrich

L-Cysteine hydrochloride monohydrate

BioUltra, ≥99.0% (RT)

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Synonym(s):
L-Cysteine hydrochloride hydrate (1:1:1)
Linear Formula:
HSCH2CH(NH2)COOH · HCl · H2O
CAS Number:
Molecular Weight:
175.63
Beilstein/REAXYS Number:
5158059
EC Number:
MDL number:
eCl@ss:
32160406
PubChem Substance ID:
NACRES:
NA.26

product line

BioUltra

Quality Level

assay

≥99.0% (RT)

form

crystals

optical activity

[α]20/D +5.6±0.3°, c = 5% in 5 M HCl

impurities

insoluble matter, passes filter test
≤0.5% foreign amino acids

ign. residue

≤0.05% (as SO4)

color

white

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

sulfate (SO42-): ≤200 mg/kg

cation traces

Al: ≤10 mg/kg
As: ≤0.5 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
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
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
NH4+: ≤500 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 1.0
λ: 280 nm Amax: 0.3

SMILES string

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

InChI

1S/C3H7NO2S.ClH.H2O/c4-2(1-7)3(5)6;;/h2,7H,1,4H2,(H,5,6);1H;1H2/t2-;;/m0../s1

InChI key

QIJRTFXNRTXDIP-JIZZDEOASA-N

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This Item
778451C788030122
L-Cysteine hydrochloride monohydrate BioUltra, ≥99.0% (RT)

30129

L-Cysteine hydrochloride monohydrate

Premium Grade
L-Cysteine hydrochloride monohydrate Produced by Wacker Chemie AG, Burghausen, Germany, Life Science, 98.5-101.0%

778451

L-Cysteine hydrochloride monohydrate

-
L-Cysteine hydrochloride monohydrate reagent grade, ≥98% (TLC)

C7880

L-Cysteine hydrochloride monohydrate

Essential Grade
L-Cysteine hydrochloride monohydrate tested according to Ph. Eur.

30122

L-Cysteine hydrochloride monohydrate

-
assay

≥99.0% (RT)

assay

98.5-101.0%

assay

≥98% (TLC)

assay

98.5-101.0%

product line

BioUltra

product line

-

product line

-

product line

-

cation traces

Al: ≤10 mg/kg, Ba: ≤5 mg/kg, Ca: ≤10 mg/kg, Co: ≤5 mg/kg, Cu: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤100 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg, As: ≤0.5 mg/kg, Cd: ≤5 mg/kg, Fe: ≤5 mg/kg, Mn: ≤5 mg/kg, Ni: ≤5 mg/kg, Bi: ≤5 mg/kg, Li: ≤5 mg/kg, Sr: ≤5 mg/kg, Cr: ≤5 mg/kg, NH4+: ≤500 mg/kg

cation traces

Fe: ≤10 ppm

cation traces

-

cation traces

-

color

white

color

-

color

white

color

-

optical activity

[α]20/D +5.6±0.3°, c = 5% in 5 M HCl

optical activity

[α]/D 5.7 to 6.8°

optical activity

-

optical activity

-

Biochem/physiol Actions

NMDA glutamatergic receptor antagonist.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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