L-Threonine
SIGMA/89179 - BioXtra, ≥99.5% (NT)
Synonym: (2S,3R)
CAS Number: 72-19-5
Empirical Formula (Hill Notation): C4H9NO3
Molecular Weight: 119.12
EC Number: 200-774-1
MDL Number: MFCD00064270
Linear Formula: CH3CH(OH)CH(NH2)CO2H
Product Type: Chemical
anion traces | chloride (Cl-): ≤50 mg/kg |
sulfate (SO42-): ≤100 mg/kg | |
assay | ≥99.5% (NT) |
cation traces | Al: ≤5 mg/kg |
As: ≤0.1 mg/kg | |
Ba: ≤5 mg/kg | |
Bi: ≤5 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: ≤50 mg/kg | |
NH4+: ≤500 mg/kg | |
Ni: ≤5 mg/kg | |
Pb: ≤5 mg/kg | |
Sr: ≤5 mg/kg | |
Zn: ≤5 mg/kg | |
color | white to off-white |
form | powder or crystals |
ign. residue | ≤0.1% |
impurities | ≤0.5% foreign amino acids |
InChI | 1S/C4H9NO3/c1-2(6)3(5)4(7 |
InChI key | AYFVYJQAPQTCCC-GBXIJSLDSA |
loss | ≤0.1% loss on drying, 20 °C (HV) |
mp | 256 °C (dec.) (lit.) |
optical activity | [α]20/D −28.5±0.5°, c = 5% in H2O |
product line | BioXtra |
Quality Level | 100 |
SMILES string | C[C@@H](O)[C@H](N)C(O)=O |
solubility | H2O: 50 mg/mL, clear, colorless |
Application: |
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Other Notes: | Preparation of threonine-sepharose, assay and purification of protein kinase C; Amino acid spacing in isotachophoresis on polyacrylamide gel - a critical evaluation; Growth requirement of various microorganisms. |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 1 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | ≥99.5% (NT) |
mp | 256 °C (dec.) (lit.) |
UNSPSC | 12352209 |