1.08411
L-Threonine
for biochemistry
Synonym(s):
L-Threonine, Thr, 2-Amino-3-hydroxybutanoic acid
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About This Item
Empirical Formula (Hill Notation):
C4H9NO3
CAS Number:
Molecular Weight:
119.12
UNSPSC Code:
12352209
EC Index Number:
200-774-1
NACRES:
NA.21
MDL number:
Quality Level
form
solid
pH
5-6 (20 °C, 100 g/L in H2O)
mp
265-270 °C
solubility
90 g/L
bulk density
370 kg/m3
storage temp.
2-30°C
SMILES string
[N+H3]C(C(O)C)C(=O)[O-]
InChI
1S/C4H9NO3/c1-2(6)3(5)4(7)8/h2-3,6H,5H2,1H3,(H,7,8)
InChI key
AYFVYJQAPQTCCC-UHFFFAOYSA-N
Analysis Note
Assay (perchloric acid titration): ≥ 99.0 %
Identity (IR-spectrum): passes test
Appearance: white to almost white, fine powder
Appearance of solution (1 mol/l, water): clear and colorless
Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l): -15.4 to -16.4
Heavy metals (as Pb): ≤ 0.001 %
NH₄ (Ammonium): ≤ 0.01 %
Foreign amino acids: ≤ 0.3 %
Other ninhydrine positive substances: ≤ 0.1 %
Identity (IR-spectrum): passes test
Appearance: white to almost white, fine powder
Appearance of solution (1 mol/l, water): clear and colorless
Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l): -15.4 to -16.4
Heavy metals (as Pb): ≤ 0.001 %
NH₄ (Ammonium): ≤ 0.01 %
Foreign amino acids: ≤ 0.3 %
Other ninhydrine positive substances: ≤ 0.1 %
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Storage Class
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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