L-Threonine

CAS	72-19-5
Structure
Synonyms	L-α-Amino-β-hydroxy-butiric acid
IUPAC Name	(2S,3R)-2-Amino-3-hydroxybutanoic acid
Molecular Weight	119.12
Molecular Formula	C4H9NO3
Canonical SMILES	CC(C(C(=O)O)N)O
InChI	InChI=1S/C4H9NO3/c1-2(6)3(5)4(7)8/h2-3,6H,5H2,1H3,(H,7,8)/t2-,3+/m1/s1
InChI Key	AYFVYJQAPQTCCC-GBXIJSLDSA-N
Boiling Point	222.38 °C
Melting Point	256 °C(lit.)
Purity	98%
Density	1.3126 g/cm³
pKa	2.09(at 25 °C)
pH	5-6 (100g/l, H₂O, 20°C)
Solubility in Water	50 mg/mL
Appearance	Yellow powder