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LC1778 L-Cysteine hydrochloride monohydrate
for biochemistry

 

Order number Packaging Quantity Price €
AC28778 Plastic bottle 25 g 14.94
AC28778 Plastic bottle 100 g 31.05
AC28778 Plastic bottle 1 kg 225.9
AC28778 Plastic drum 10 kg Inquire

 

Product information
Hill Formula C3H8ClNO2S * H2O
HS Code 2930 90 16
EC number 200-157-7
Molar mass 175.64 g/mol
CAS number 7048-04-6

 

Chemical and physical data
Solubility 650 g/l (20 °C)
Melting point 168 – 170 °C
Molar mass 175.64 g/mol
Bulk density 780 kg/m3
pH value 0.8 – 1.2 (100 g/l, H2O, 20 °C)

 

Safety information
RTECS HA2285000
Storage class 10 – 13 Other liquids and solids
WGK WGK 1 slightly water endangering
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

 

Specifications
Assay (iodometric, calc. on dried substance) ≥ 99.0 %
Identity (IR-spectrum) passes test
Appearance White, crystalline powder or colorless crystals.
Appearance of solution (1 mol/l, water) Clear and colorless.
Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l, calc. on dried substance) +6.3° to +7.3°
UV-Absorption (280 nm; 1 mol/l; 1 cm; water) ≤ 0.1
Sulfate (SO4) ≤ 0.01 %
Heavy metals (as Pb) ≤ 0.001 %
As (Arsenic) ≤ 0.0005 %
Ca (Calcium) ≤ 0.001 %
Co (Cobalt) ≤ 0.0005 %
Fe (Iron) ≤ 0.0005 %
K (Potassium) ≤ 0.0005 %
Mg (Magnesium) ≤ 0.0005 %
Na (Sodium) ≤ 0.02 %
NH4 (Ammonium) ≤ 0.01 %
Zn (Zinc) ≤ 0.0005 %
Foreign amino acids ≤ 0.3 %
Other ninhydrine positive substances ≤ 0.1 %
Loss on drying (Vacuum < 0.7 kPa, P2O5, 24 h) 9.0 – 11.5 %