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- Name L-Aspartic acid 4-tert-butyl ester
- EINECS221-292-8
- CAS No. 3057-74-7
- Density1.162 g/cm3
- PSA89.62000
- LogP0.83040
- SolubilityN/A
- Melting Point220 °C (dec.)
- FormulaC8H15NO4
- Boiling Point318.7 °C at 760 mmHg
- Molecular Weight189.211
- Flash Point146.5 °C
- Transport InformationN/A
- AppearanceWhite powder
- Safety22-24/25
- Risk Codes36/37/38
- Molecular Structure
- Hazard SymbolsN/A
- SynonymsN/A
- Article Data14
L-Aspartic acid 4-tert-butyl ester Chemical Properties
Molecular Formula: C8H15NO4 
Formula Weight: 189.21 g/mol
Synonyms: L-ASPARTIC ACID 4-(1,1-DIMETHYLETHYL) ESTER; (2S)-2-Amino-3-(tert-butoxycarbonyl)propionic acid; (S)-2-Aminosuccinic acid 4-tert-butyl ester; 4-tert-butyl hydrogen L-aspartate
Melting Point: 220°C (dec.)
Flash Point of H-Asp(OtBu)-OH (3057-74-7): 146.5 °C
Boiling Point: 318.7 °C at 760 mmHg
Density of H-Asp(OtBu)-OH (3057-74-7): 1.162 g/cm3
Vapour Pressure: 7.48E-05 mmHg at 25°C
Storage temp.: 2-8°C
Index of Refraction: 1.475
Physical State: Fine plates
Index of Refraction: 1.475
Surface Tension: 43.6 dyne/cm
Enthalpy of Vaporization: 61.59 kJ/mol
Color: H-Asp(OtBu)-OH (3057-74-7) is white
L-Aspartic acid 4-tert-butyl ester Safety Profile
Safety Statements : 22-24/25
22: Do not breathe dust
24/25: Avoid contact with skin and eyes
WGK Germany : 3
L-Aspartic acid 4-tert-butyl ester Standards and Recommendations
Content: 98+%
L-Aspartic acid 4-tert-butyl ester Specification
Storage of H-Asp(OtBu)-OH (3057-74-7): Keep container tightly closed. Keep in a cool,dry place.
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