D-Cysteine 921-01-7

D-Cysteine 921-01-7

Specifications

  • Catalogue No.: 37100
  • Product Name: D-Cysteine; H-D-Cys-OH
  • Synonyms: (S)-2-Amino-3-mercaptopropionic acid
  • CAS: 921-01-7
  • EC: 213-062-0
  • MDL: MFCD00066461
  • Formula: C3H7NO2S
  • MW: 121.16
  • ————————————————–
  • Price: USD540/500g
  • Price: USD920/1kg
  • Price(bulk): Email Us

Properties

Assay 98.0~102.0%
Appearance white to off-white powder
Specific Rotation [20/D] -8.3°~-9.5° (c=8 in 1N HCl)
pH 4.5~5.5
Transmittance 98.0% min
Ammonium(NH4) 0.02%
Sulfate (SO4) 0.03%
Chloride (Cl) 0.04%
Heavy Metals (Pb) 10 ppm max
Iron (Fe) 10 ppm max
Arsenic (As2O3) 1 ppm max
Loss on drying 0.50% max
Other amino acid conforms
Packing 25kg/drum

D-Cysteine 921-01-7 is an unnatural isomer of cysteine, important chemical intermediate in organic synthesis.

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