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L-Cysteine hydrochloride monohydrate CAS 7048-04-6 E920

Colorless to white columnar crystals or white crystalline powder, with a slight distinctive odor. Melting point 175 ℃. Soluble in water, alcohol, ammonia and acetic acid, insoluble in benzene, ether, acetone, ethyl acetate and carbon tetrachloride. The pH value of a 1% aqueous solution is 1.7. Has reducing properties, antioxidant properties, and prevents non enzymatic browning. Oral LD503.46mg/kg for mice.
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  • 7048-04-6

  • bosschemical

  • 7048-04-6

L-Cysteine hydrochloride monohydrate Basic information
Application General descriptio
Product Name: L-Cysteine hydrochloride monohydrate
CAS: 1880366
MF: C3H10ClNO3S
MW: 175.63
EINECS: 615-117-8
Mol File: 7048-04-6.mol
L-Cysteine hydrochloride monohydrate Chemical Properties
Melting point  175°C
alpha  +6.0~+7.5゜ (20℃/D)(c=8,6mol/l HCl)(calculated on the dried basis)
bulk density 780kg/m3
density  1.54 g/cm3
vapor pressure  <0.1 hPa (20 °C)
refractive index  6 ° (C=8, 1mol/L HCl)
storage temp.  Keep in dark place,Inert atmosphere,Room temperature
solubility  H2O: 1 M at 20 °C, clear, colorless
form  Solid
color  White
PH 0.8-1.2 (100g/l, H2O, 20℃)
PH Range 1月2日
biological source synthetic
Optical Rotation [α]20/D +5.6±0.3°, c = 5% in 5 M HCl
Water Solubility  Soluble in cold water.
λmax λ: 260 nm Amax: 1.0
λ: 280 nm Amax: 0.3
Sensitive  Hygroscopic
Merck  142,781
BRN  5158059
Stability: Stable. Incompatible with strong oxidizing agents, most common metals, hydrogen chloride.
LogP 0.235 (est)
CAS DataBase Reference 7048-04-6(CAS DataBase Reference)

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