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LC1780 L-Cystine
extra pure FCC

 

Order number Packaging Quantity Price €
AC28780 Plastic bottle 1 kg Inquire
AC28780 Double PE Sack 25 kg Inquire

 

Product information
Grade FCC
Hill Formula C6H12N2O4S2
HS Code 2930 90 13
EC number 200-296-3
Molar mass 240.29 g/mol
CAS number 56-89-3

 

Chemical and physical data
Ignition temperature 400 °C
Solubility (20 °C) insoluble
Melting point 261 – 262 °C (decomposition)
Molar mass 240.29 g/mol
Density 1.677 g/cm3 (20 °C)
Bulk density 300 kg/m3
pH value >1 (H2O, 20 °C)

 

Safety information
RTECS HA2690000
Storage class 10 – 13 Other liquids and solids
WGK NWG not water endangering

 

Specifications
Assay (ex N, calc. on dried substance) 98.5 – 101.5 %
Identity (IR-spectrum) passes test
Appearance white to almost white, fine powder
Appearance of solution (50 g/l, hydrochloric acid 1 mol/l) clear and colorless.
Spec. rotation (α 20/D, 20 g/l, hydrochloric acid 1 mol/l, calc. on dried substance) -215 ° to -225 °
Pb (Lead) ≤ 0.0005 %
Ninhydrin – positive substances (TLC) ≤ 0.2 %
Sulfated ash (800 °C) ≤ 0.1 %
Loss on drying (105 °C; 3 h) ≤ 0.2 %