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A4440

Sigma-Aldrich

Asp-Asp-Asp-Asp

≥97% (TLC)

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Empirical Formula (Hill Notation):
C16H22N4O13
CAS Number:
145224-95-9
Molecular Weight:
478.36
MDL number:
MFCD00153916
UNSPSC Code:
12352200
PubChem Substance ID:
24890867

Assay

≥97% (TLC)

form

powder

color

white

storage temp.

−20°C

SMILES string

NC(CC(O)=O)C(=O)NC(CC(O)=O)C(=O)NC(CC(O)=O)C(=O)NC(CC(O)=O)C(O)=O

InChI

1S/C16H22N4O13/c17-5(1-9(21)22)13(29)18-6(2-10(23)24)14(30)19-7(3-11(25)26)15(31)20-8(16(32)33)4-12(27)28/h5-8H,1-4,17H2,(H,18,29)(H,19,30)(H,20,31)(H,21,22)(H,23,24)(H,25,26)(H,27,28)(H,32,33)

InChI key

OZRFYUJEXYKQDV-UHFFFAOYSA-N

Amino Acid Sequence

Asp-Asp-Asp-Asp

Biochem/physiol Actions

Tetraaspartic acid (Asp-Asp-Asp-Asp) is a small polyanionic peptide used in physicochemical studies along with other polyanionic peptides. Tetraaspartic acid forms complexes with metals such as copper making it useful in studies on copper mediated effects such as free radial formation.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Csilla Kállay et al.
Journal of inorganic biochemistry, 99(7), 1514-1525 (2005-06-02)
Copper(II) complexes of di-, tri- and tetra-peptides built up from Asp and/or Glu residues were studied by potentiometric and various spectroscopic techniques including UV-visible, circular dichroism and electron paramagnetic resonance measurements. The ligands contain two to five carboxylate functions and
Xiaofei Li et al.
Biotechnology for biofuels, 6(1), 94-94 (2013-07-04)
Plant cell wall polysaccharide composition varies substantially between species, organs and genotypes. Knowledge of the structure and composition of these polysaccharides, accompanied by a suite of well characterised glycosyl hydrolases will be important for the success of lignocellulosic biofuels. Current

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