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11189

L-Aspartic acid

Name: <SC>L</SC>-Aspartic acid
Brand: SIGMA

≥99.5% (T), BioUltra

Synonym(s):

(S)-(+)-Aminosuccinic acid, (S)-Aminobutanedioic acid

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About This Item

Linear Formula:

HO₂CCH₂CH(NH₂)CO₂H

CAS Number:

56-84-8

Molecular Weight:

133.10

NACRES:

NA.26

PubChem Substance ID:

57646891

eCl@ss:

32160406

UNSPSC Code:

12352209

EC Number:

200-291-6

MDL number:

MFCD00002616

Beilstein/REAXYS Number:

1723530

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Properties

Product Name

L-Aspartic acid, BioUltra, ≥99.5% (T)

Quality Segment

200

product line

BioUltra

assay

≥99.5% (T)

form

powder or crystals

optical activity

[α]20/D +24.7±1°, c = 5% in 5 M HCl

impurities

insoluble matter, passes filter test, ≤0.3% foreign amino acids

ign. residue

≤0.05% (as SO₄)

loss

≤0.1% loss on drying, 110 °C

color

white

mp

>300 °C (dec.) (lit.)

solubility

1 M HCl: 0.5 M at 20 °C, clear, colorless

anion traces

chloride (Cl^-): ≤50 mg/kg, sulfate (SO₄^2-): ≤150 mg/kg

cation traces

Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, NH₄⁺: ≤200 mg/kg, Na: ≤100 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤5 mg/kg, Zn: ≤5 mg/kg

λ

0.5 M in 1 M HCl

UV absorption

λ: 260 nm A_max: 0.20, λ: 280 nm A_max: 0.10

SMILES string

N[C@@H](CC(O)=O)C(O)=O

InChI

1S/C4H7NO4/c5-2(4(8)9)1-3(6)7/h2H,1,5H2,(H,6,7)(H,8,9)/t2-/m0/s1

InChI key

CKLJMWTZIZZHCS-REOHCLBHSA-N

Gene Information

human ... CA1(759), CA2(760)
rat ... Grin2a(24409)

Description

General description

Aspartic acid (Asp) is a non-essential amino acid. It makes up to 5% of the amino acids in a protein. The GAC and GAU codons encode Asp. This is a chiral molecule and occurs in two enantiomers namely L-Asp and D-Asp.

Application

L-Aspartic acid has been used:

as a metabolite to study the enzyme–metabolite interactions in the central metabolism of Escherichia coli by nuclear magnetic resonance (NMR)
in transmission electron microscopy
as a component of complete media for culturing Yeast strain

Biochem/physiol Actions

Principal neurotransmitter for fast synaptic excitation.

L-Aspartic acid is associated with protein biosynthesis (proteinogenic) and neurotransmission

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Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c