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70-47-3

Name L-Asparagine
CAS 70-47-3
EINECS(EC#) 200-735-9
Molecular Formula C4H8N2O3
MDL Number MFCD00064401
Molecular Weight 132.12
MOL File 70-47-3.mol

Chemical Properties

Appearance White crystalline powder
Melting point  235 °C (dec.) (lit.)
alpha  34.5 º (c=10, 2N HCl)
Boiling point  244.01°C (rough estimate)
density  1,543g/cm
refractive index  1.4880 (estimate)
storage temp.  Store at 0-5°C
solubility  H2O: 0.1 M at 20 °C, clear, colorless
form  Powder
pka 2.17(at 20℃)
color  White
Odor sltly sweet taste
Stability: Stable, but may be moisture-sensitive. Incompatible with strong oxidizing agents.
Water Solubility  20 g/L (20 ºC)
Sensitive  Hygroscopic
Merck  14,837
BRN  1723527
LogP -3.820
CAS DataBase Reference 70-47-3(CAS DataBase Reference)
NIST Chemistry Reference L-Asparagine(70-47-3)
EPA Substance Registry System 70-47-3(EPA Substance)

Safety Data

Hazard Codes  Xn
Risk Statements 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S24/25:Avoid contact with skin and eyes .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
RIDADR  UN 2811 6.1 / PGIII
WGK Germany  3
3-10
TSCA  Y
HazardClass  IRRITANT
HS Code  29241900
Safety Profile
When heated to decomposition emits toxic fumes of Nox
Hazardous Substances Data 70-47-3(Hazardous Substances Data)

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