30090
Fluka

L-Cysteine

BioChemika, ≥98.5% (RT)

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Synonym

(R)-2-Amino-3-mercaptopropionic acid

Molecular Formula

HSCH₂CH(NH₂)CO₂H

Molecular Weight

121.16

CAS Number

52-90-4

Beilstein Registry Number

1721408

MDL number

MFCD00064306

EG/EC Number

200-158-2

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Descriptions

Biochem/physiol Actions

NMDA glutamatergic receptor agonist.

Properties

product line

BioChemika

assay

≥98.5% (RT)

optical activity

[α]20/D +7.6±0.5°, c = 5% in 5 M HCl

total impurities

≤0.5% foreign amino acids

ign. residue

≤0.1% (as SO₄)

loss

≤0.1% loss on drying, 110 °C

220 °C (dec.)(lit.)

anion traces

chloride (Cl^-): ≤100 mg/kg

sulfate (SO₄^2-): ≤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: ≤100 mg/kg

Ni: ≤5 mg/kg

Pb: ≤5 mg/kg

Zn: ≤5 mg/kg

References

Reference

Uren, J.R. and Lazarus, H., L-cyst(e)ine requirements of malignant cells and progress toward depletion therapy. Cancer Treat. Rep. 63, 1073, (1979)

A. Campiglio, Cobalt(II) as a titrant in the direct potentiometric titration of micro-amounts of L-cysteine. Analyst 117, 1507, (1992)

Albers, J.J., et al., Isolation, Characterization and Assay of Lecithin-Cholesterol Acyltransferase. Meth. Enzymol. 129, 763, (1986)

Parsons, R.B., et al., In vitro effect of the cysteine metabolites homocysteic acid, homocysteine and cysteic acid upon human neuronal cell lines. Neurotoxicology 19, 599-603, (1998) abstract

Arakawa, T. and Timasheff, S.N., Theory of protein solubility. Meth. Enzymol. 114, 49, (1985)

Merck

Merck 13,2810

Beilstein

Beil. 4,IV,3144

reference

Corp MSDS 1 (1), 1000:A / FT-IR 2 (1), 938:A / FT-IR 1 (1), 591:D / Fenaroli, 381 / IR-Spectra (3), 352:B / NMR-Reference 2 (1), 499:A / RegBook 1 (1), 671:O / Sax 6, 849 / Sigma FT-IR 1 (1), 121:B / Structure Index 1, 101:C:3 / Vapor Phase 3, 1000:A

Safety

Hazard Codes

Risk Statements

WGK Germany

RTECS

HA1600000

10-23