L-Threonine | 72-19-5

Additional information

CAS ID

72-19-5

IUPAC Name

(2S,3R)-2-amino-3-hydroxybutanoic acid

Molecular Formula

C4H9NO3

Molecular Weight

SMILES

CC(C(C(=O)O)N)O

Description

6288

Synonym : l-threonine, threonine, threonin, h-thr-oh, 2s,3r-2-amino-3-hydroxybutanoic acid, s-threonine, l—threonine, 2-amino-3-hydroxybutyric acid, threonine van, threoninum latin

Ammonium0.02% max.
Assay Percent Range99.0 to 101.0 %
Heavy Metals (as Pb)10ppm max.
Ignition Residue0.1% max.
IdentificationPass Test
Merck Index15, 9534
Loss on Drying0.2% max.
PackagingGlass Bottle
Related SubstancesConforms
Formula Weight119.12
Specific Rotation-27.6 to -29.0° (+ or -)
Physical FormPowder/Solid
State of Solution (%T)98.0% min.
Alpha VectorThreonine
ColorWhite
Melting Point255°C
pH5.0 to 6.5
Chemical Name or MaterialL-Threonine

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