L-Aspartic acid
SIGMA/11189 - BioUltra, ≥99.5% (T)
Synonym: (S)-(+)-Aminosuccinic acid; (S)-Aminobutanedioic acid
CAS Number: 56-84-8
Empirical Formula (Hill Notation): C4H7NO4
Molecular Weight: 133.10
EC Number: 200-291-6
MDL Number: MFCD00002616
Linear Formula: HO2CCH2CH(NH2)CO2H
Product Type: Chemical
| λ | 0.5 M in 1 M HCl |
| anion traces | chloride (Cl-): ≤50 mg/kg |
| sulfate (SO42-): ≤150 mg/kg | |
| assay | ≥99.5% (T) |
| 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 | |
| Na: ≤100 mg/kg | |
| NH4+: ≤200 mg/kg | |
| Ni: ≤5 mg/kg | |
| Pb: ≤5 mg/kg | |
| Sr: ≤5 mg/kg | |
| Zn: ≤5 mg/kg | |
| color | white |
| form | powder or crystals |
| ign. residue | ≤0.05% (as SO4) |
| impurities | insoluble matter, passes filter test |
| ≤0.3% foreign amino acids | |
| InChI | 1S/C4H7NO4/c5-2(4(8)9)1-3 |
| InChI key | CKLJMWTZIZZHCS-REOHCLBHSA |
| loss | ≤0.1% loss on drying, 110 °C |
| mp | >300 °C (dec.) (lit.) |
| optical activity | [α]20/D +24.7±1°, c = 5% in 5 M HCl |
| product line | BioUltra |
| Quality Level | 200  |
| SMILES string | N[C@@H](CC(O)=O)C(O)=O |
| solubility | 1 M HCl: 0.5 M at 20 °C, clear, colorless |
| UV absorption | λ: 260 nm Amax: 0.20 |
| λ: 280 nm Amax: 0.10 |