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L-Cysteine, 250 g, plastic

≥98 %, for biochemistry
Examples of effect: Lead to damage to heath, cause irritation to eyes, skin or respiratory organs. Are fatal in larger quantities. Safety: As previously stated, in the event of skin irritation or contact with eyes, rinse with water or a suitable medium.
i harmful if swallowed
i IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell
Pack Qty.
α-Amino-β-mercapto-propionic acid
Empirical formula C3H7NO2S
Molar mass (M) 121,16 g/mol
Density (D) 1,496 g/cm³
Melting point (mp) 178 °C
CAS No. 52-90-4
EG-Nr. 200-158-2

€138.70/Pack Qty. 

excl. VAT. | 250 g per Pack Qty.

Art. No. 3467.3

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Art. No. Pack Qty. Pack. Price Quantity
3467.1 10 g glass


3467.2 50 g glass


3467.3 250 g plastic


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Downloads / MSDS

General information

Amino acids

Our amino acids are of the highest purity and suitable for a broad range of applications in biochemistry. Besides the natural occurring L-amino acids, we offer a selection of unnatural D-amino acids and DL-amino acids.

Certificates of Analysis

You can search for and download your certificate of analysis for the selected product here. Please provide your batch number.
The following analysis certificates have been found:

Guarantee analysis

Appearancewhite, cryst. powder
Appearance of solutionclear and colorless
Assay98.0-101.0 %
Specific rotation [α]20D+8.3° to +9.5°
Loss on drying≤0.5 %
Ash content (as SO4)≤0.05 %
Foreign amino acidscomplies
Chloride (Cl)≤0.04 %
Sulphate (SO4)≤0.028 %
Ammonium (NH4)≤0.02 %
Arsenic (As2O3)≤0.0001 %
Iron (Fe)≤0.001 %
Heavy metals (as Pb)≤0.001 %