11189

L-Aspartic acid

≥99.5% (T), BioUltra

• Synonym(s): (S)-(+)-Aminosuccinic acid, (S)-Aminobutanedioic acid
• 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

Properties

• Product Name: L-Aspartic acid, BioUltra, ≥99.5% (T)
• Quality Level: 200
• InChI key: CKLJMWTZIZZHCS-REOHCLBHSA-N
• InChI: 1S/C4H7NO4/c5-2(4(8)9)1-3(6)7/h2H,1,5H2,(H,6,7)(H,8,9)/t2-/m0/s1
• SMILES string: N[C@@H](CC(O)=O)C(O)=O
• 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
• Gene Information: human ... CA1(759), CA2(760) ; rat ... Grin2a(24409)

Description

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)[1]
• in transmission electron microscopy[2]
• as a component of complete media for culturing Yeast strain[3]

Biochem/physiol Actions

L-Aspartic acid is associated with protein biosynthesis (proteinogenic) and neurotransmission[4]

Principal neurotransmitter for fast synaptic excitation.

General description

Aspartic acid (Asp) is a non-essential amino acid.[3] It makes up to 5% of the amino acids in a protein.[5] The GAC and GAU codons encode Asp. This is a chiral molecule and occurs in two enantiomers namely L-Asp and D-Asp.[4]

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves