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13139-14-5

Name N-[(tert-Butoxy)carbonyl]-L-tryptophan
CAS 13139-14-5
EINECS(EC#) 236-072-7
Molecular Formula C16H20N2O4
MDL Number MFCD00065595
Molecular Weight 304.34
MOL File 13139-14-5.mol
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Chemical Properties

Appearance WHITE TO OFF-WHITE GRANULAR POWDER
Melting point  136 °C (dec.)(lit.)
alpha  -20 º (c=1, methanol)
Boiling point  445.17°C (rough estimate)
density  1.1328 (rough estimate)
refractive index  -17.5 ° (C=2, DMF)
storage temp.  −20°C
solubility  Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
form  Powder
pka 4.00±0.10(Predicted)
color  White to off-white
optical activity [α]20/D 20±1°, c = 1% in DMF
BRN  39677
CAS DataBase Reference 13139-14-5(CAS DataBase Reference)
EPA Substance Registry System 13139-14-5(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 
S22:Do not breathe dust .
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 .
WGK Germany  3
TSCA  Yes
HazardClass  IRRITANT
HS Code  29339900

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