Cas no 4125-93-3 (L-Aspartic Acid 1-tert-Butyl Ester)

L-Aspartic Acid 1-tert-Butyl Ester is a protected derivative of L-aspartic acid, where the 1-carboxyl group is esterified with a tert-butyl group. This modification enhances its utility in peptide synthesis by providing selective protection for the α-carboxyl functionality, leaving the β-carboxyl group free for further derivatization. The tert-butyl ester group offers stability under acidic and basic conditions, facilitating controlled deprotection when required. This compound is particularly valuable in solid-phase peptide synthesis (SPPS) and medicinal chemistry, where precise functional group manipulation is critical. Its high purity and consistent performance make it a reliable building block for constructing complex peptides and bioactive molecules.
L-Aspartic Acid 1-tert-Butyl Ester structure
4125-93-3 structure
Product Name:L-Aspartic Acid 1-tert-Butyl Ester
CAS No:4125-93-3
MF:C8H15NO4
MW:189.209002733231
MDL:MFCD00171675
CID:44770
PubChem ID:7016377
Update Time:2025-06-07

L-Aspartic Acid 1-tert-Butyl Ester Chemical and Physical Properties

Names and Identifiers

    • L-Aspartic acid 1-tert-butyl ester
    • H-Asp-OtBu
    • (S)-3-Amino-4-tert-butoxy-4-oxobutanoic acid
    • L-Aspartic acid α-tert-butyl ester
    • (3S)-3-amino-4-tert-butoxy-4-oxobutanoic acid
    • (S)-2,6-Diaminohexanoic acid compound with (S)-2-aminosuccinic acid (1:1)
    • Asp(OH)-OtBu
    • Asparaginsaeure
    • Asparaginsaeure-1-tert-butylester
    • EINECS 248-423-1
    • Jsp005322
    • L-Aspartic acid α-tert·butyl ester
    • L-Lysine aspartate
    • L-Lysine L-aspartate
    • L-Lysine-L-aspartate
    • L-tert-butyl aspartate
    • Lysine aspartate
    • tert-butyl L-aspartate
    • UNII-23227F83U0
    • P-Chlorophenol
    • (S)-3-Amino-4-(tert-butoxy)-4-oxobutanoic acid
    • H-Chg-OMe?Cl
    • L-Aspartic Acid tert-Butyl Ester
    • aspartic acid t-butyl ester
    • PUWCNJZIFKBDJQ-YFKPBYRVSA-N
    • EBD48489
    • L-Aspartic acid
    • A-tert.butyl ester
    • L-Asp-OtBu
    • L-Aspartic acid 1-tert-butylester
    • AM81597
    • AX8020736
    • A
    • L-Aspartic acid alpha-t-butyl ester
    • L-Aspartic acid alpha-tert-butyl ester
    • 4125-93-3
    • MFCD00171675
    • (3S)-3-Amino-4-tert-butoxy-4-oxobutanoic acid, AldrichCPR
    • H-L-Asp-OtBu
    • SCHEMBL375959
    • L-Aspartic acid a-tert-butyl ester
    • (S)-2-Amino-succinic acid 1-tert-butyl ester
    • D-Aspartic Acid 1-(1,1-Dimethylethyl) Ester
    • (3S)-3-AMINO-4-(TERT-BUTOXY)-4-OXOBUTANOIC ACID
    • F16420
    • HY-W006400
    • EN300-2010109
    • AKOS016842887
    • CS-W006400
    • AS-17654
    • AC-19185
    • D-Aspartic Acid 1-tert-Butyl Ester
    • (3S)-3-amino-4-[(2-methylpropan-2-yl)oxy]-4-oxobutanoic acid
    • 965-044-3
    • FA47669
    • L-Aspartic Acid 1-tert-Butyl Ester
    • MDL： MFCD00171675
    • Inchi： 1S/C8H15NO4/c1-8(2,3)13-7(12)5(9)4-6(10)11/h5H,4,9H2,1-3H3,(H,10,11)/t5-/m0/s1
    • InChI Key： PUWCNJZIFKBDJQ-YFKPBYRVSA-N
    • SMILES： O(C([C@H](CC(=O)O)N)=O)C(C)(C)C

Computed Properties

  • Exact Mass: 189.10015
  • Monoisotopic Mass: 189.10010796g/mol
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 2
  • Hydrogen Bond Acceptor Count: 5
  • Heavy Atom Count: 13
  • Rotatable Bond Count: 5
  • Complexity: 207
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 1
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • XLogP3: -2.6
  • Topological Polar Surface Area: 89.6

Experimental Properties

  • Boiling Point: 297.8℃ at 760 mmHg
  • PSA: 89.62

L-Aspartic Acid 1-tert-Butyl Ester Pricemore >>

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L-Aspartic Acid 1-tert-Butyl Ester Suppliers

Amadis Chemical Company Limited
Gold Member
Audited Supplier Audited Supplier
(CAS:4125-93-3)L-Aspartic Acid 1-tert-Butyl Ester
Order Number:A825492
Stock Status:in Stock
Quantity:100g/25g
Purity:99%
Pricing Information Last Updated:Friday, 30 August 2024 05:22
Price ($):1747.0/529.0

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Amadis Chemical Company Limited
(CAS:4125-93-3)L-Aspartic Acid 1-tert-Butyl Ester
A825492
Purity:99%/99%
Quantity:100g/25g
Price ($):1747.0/529.0
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