H-Asp(OtBu)-OH

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Names

[ CAS No. ]:
3057-74-7

[ Name ]:
H-Asp(OtBu)-OH

[Synonym ]:
(2S)-2-Amino-4-tert-butoxy-4-oxobutanoic acid (non-preferred name)
EINECS 221-292-8
AmbotzHAA1072
(2S)-2-Amino-4-[(2-methyl-2-propanyl)oxy]-4-oxobutanoic acid
MFCD00038577
L-Aspartic acid 4-tert-Butyl ester
L-Aspartic acid, 4-(1,1-dimethylethyl) ester
H-Asp(OtBu)-OH
L-Asparticacid-t-butyl ester monohydrate

Chemical & Physical Properties

[ Density]:
1.2±0.1 g/cm3

[ Boiling Point ]:
318.7±37.0 °C at 760 mmHg

[ Melting Point ]:
220°C (dec.)

[ Molecular Formula ]:
C8H15NO4

[ Molecular Weight ]:
189.209

[ Flash Point ]:
146.5±26.5 °C

[ Exact Mass ]:
189.100113

[ PSA ]:
89.62000

[ LogP ]:
0.94

[ Vapour Pressure ]:
0.0±1.5 mmHg at 25°C

[ Index of Refraction ]:
1.476

[ Storage condition ]:
2-8°C

MSDS

Click to get detail MSDS

Safety Information

[ Personal Protective Equipment ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ Safety Phrases ]:
S22-S24/25

[ RIDADR ]:
NONH for all modes of transport

[ WGK Germany ]:
3

[ HS Code ]:
2922509090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • Z-Asp(OtBu)-OH.H2O
  • H-Asp(OBut)-ObutHCL
  • FMOC-ASP(OTBU)-OH
  • 1-O-benzyl 4-O-tert-butyl (2S)-2-aminobutanedioate
  • (2R)-N-[(2S)-2-[[bis(methylthio)methylidene]amino]-3-[(tert-butyl)oxycarbonyl]propan-1-oyl]bornane-10,2-sultam
  • Z-L-Asp(β-O-t-Bu)-ONb
  • (S)-4-tert-butyl 1-ethyl 2-(((benzyloxy)carbonyl)amino)succinate
  • 2-Methyl-2-propanyl bromoacetate

DownStream

  • Z-Asp(OtBu)-OH.H2O
  • Fmoc-Asp(OtBu)-Opfp
  • FMOC-ASP(OTBU)-OH
  • Ac-Asp(OtBu)-OH
  • N3-Asp(tBu)-OH (dicyclohexylammonium) salt
  • Boc-L-aspartinol 4-tert-Butyl Ester
  • Boc-L-aspartic acid 4-tert-butylester
  • Fmoc-N-Me-Asp(OtBu)-OH
  • 2-Methyl-2-propanyl (3S)-3-({N-[{[2-(2-methyl-2-propanyl)phenyl]a mino}(oxo)acetyl]-L-alanyl}amino)-4-oxo-5-(2,3,5,6-tetrafluorophe noxy)pentanoate
  • Pentanoic acid, 5-bromo-4-oxo-3-[[(2S)-1-oxo-2-[[(phenylmethoxy)carbonyl]amino]propyl]amino]-, 1,1-dimethylethyl ester, (3S)-

Customs

[ HS Code ]: 2922509090

[ Summary ]:
2922509090. other amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Related Compounds

  • H-Asp-OtBu
  • H-Asp(OtBu)-OMe
  • (R)-4-tert-Butyl 1-methyl 2-aminosuccinate
  • H-D-Asp(OtBu)-OH
  • Ac-Asp(OtBu)-OH
  • FMOC-ASP(OTBU)-OH
  • (S)-1-(1H-Indol-3-yl)propan-2-ol
  • 2-(2-Cyanophenyl)butanoic acid
  • 2-(1-Chloroethoxy)naphthalene
  • 1-Bromo-2-methyl-3-(trifluoromethoxy)benzene
  • 2,2-Dimethyl-3-(1-methylpiperidin-4-yl)propanoic acid
  • 4-(Benzofuran-3-yl)butanoic acid
  • [(1S,2S)-4-methylidene-2-phenylcyclopentyl]methanol
  • 2-(Bromomethyl)-6-fluorobenzo[d]oxazole
  • 6-Aza-bicyclo[3.1.1]hept-3-ylamine
  • [(1S,2S)-1-(hydroxymethyl)-2-methylbutyl]carbamic acid benzyl ester
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