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11189

Sigma-Aldrich

L-Aspartic acid

≥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
Beilstein:
1723530
EC Number:
200-291-6
MDL number:
MFCD00002616
UNSPSC Code:
12352209
eCl@ss:
32160406
PubChem Substance ID:
57646891
NACRES:
NA.26

product name

L-Aspartic acid, BioUltra, ≥99.5% (T)

product line

BioUltra

Quality Level

200

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 (SO42-): ≤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 Amax: 0.20
λ: 280 nm Amax: 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)

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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

L-Aspartic acid is associated with protein biosynthesis (proteinogenic) and neurotransmission
Principal neurotransmitter for fast synaptic excitation.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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