ChemicalBook--->CAS DataBase List--->3057-74-7

3057-74-7

3057-74-7 Structure

3057-74-7 Structure
IdentificationMore
[Name]

L-Aspartic acid 4-tert-butyl ester
[CAS]

3057-74-7
[Synonyms]

ASPARTIC ACID BETA T-BUTYL ESTER MONOHYDRATE
ASPARTIC ACID(OTBU)
H-ASP(OBUT)-OH
H-ASP(OTBU)-OH
H-L-ASP(OTBU)-OH
H-L-ASP(TBU)-OH H2O
L-ASPARTIC ACID 4-TERT-BUTYL ESTER
L-ASPARTIC ACID BETA-T-BUTYL ESTER
L-ASPARTIC ACID BETA-T-BUTYL ESTER MONOHYDRATE
L-ASPARTIC ACID B-TERT-BUTYL ESTER
4-tert-butyl hydrogen L-aspartate
L-ASPARTIC ACID BETA-TERT-BUTYL ESTER 1-HYDRATE
L-Asp(OtBu)-OH
L-ASPARTIC ACID SS-T-BUTYL ESTER MONOHYDRATE
L-ASPARTIC ACID-B-T-BUTYLESTER
L-ASPARTIC ACID 4-(1,1-DIMETHYLETHYL) ESTER
(2S)-2-Amino-3-(tert-butoxycarbonyl)propionic acid
(S)-2-Aminosuccinic acid 4-tert-butyl ester
3-Boc-L-Ala-OH
Asp(OBut)
[EINECS(EC#)]

221-292-8
[Molecular Formula]

C8H15NO4
[MDL Number]

MFCD00038577
[Molecular Weight]

189.21
[MOL File]

3057-74-7.mol
Chemical PropertiesBack Directory
[Melting point ]

220°C (dec.)
[Boiling point ]

318.7±37.0 °C(Predicted)
[density ]

1.162±0.06 g/cm3(Predicted)
[storage temp. ]

2-8°C
[solubility ]

Methanol (Slightly), Water (Slightly, Sonicated)
[form ]

Solid
[pka]

2.19±0.23(Predicted)
[color ]

White to Off-White
[Optical Rotation]

[α]20/D 9±2°, c = 2% in methanol: water (4:1)
[BRN ]

4671089
[Stability:]

Hygroscopic
[Major Application]

peptide synthesis
[InChI]

InChI=1S/C8H15NO4/c1-8(2,3)13-6(10)4-5(9)7(11)12/h5H,4,9H2,1-3H3,(H,11,12)/t5-/m0/s1
[InChIKey]

MXWMFBYWXMXRPD-YFKPBYRVSA-N
[SMILES]

C(O)(=O)[C@H](CC(OC(C)(C)C)=O)N
[CAS DataBase Reference]

3057-74-7(CAS DataBase Reference)
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H335-H319-H315
[Precautionary statements ]

P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362
[Risk Statements ]

36/37/38
[Safety Statements ]

S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
[WGK Germany ]

3
[HS Code ]

29225090
[Storage Class]

11 - Combustible Solids
Hazard InformationBack Directory
[Chemical Properties]

White powder
[Uses]

L-Aspartic acid 4-tert-butyl ester is a protected form of L-Aspartic acid (A790024). L-Aspartic acid is a nonessential amino acid that is used to biosynthesize other amino acids within the human body. L-Aspartic acid also increases membrane conductance of mammalian neurons by voltage-dependent means, causing depolarization and nerve impulses that travel to key areas of the central nervous system.
[reaction suitability]

reaction type: solution phase peptide synthesis
[Synthesis]

In a 3000 mL three-necked bottle, add 1000 mL of dichloromethane, cool down to -5°C, add 344 g of anhydrous p-toluenesulfonic acid and 133 g of aspartic acid, pass through 448 g of isobutene, and maintain the reaction at -5°C for 50 hours; and then adj

Spectrum DetailBack Directory
[Spectrum Detail]

L-Aspartic acid 4-tert-butyl ester(3057-74-7)1HNMR
Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

3057-74-7(sigmaaldrich)
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