L(+)-allo-Threonine Chemical Properties

Melting point:

272 °C (dec.)(lit.)

alpha 

9 º (c=2, H2O)

Boiling point:

222.38°C (rough estimate)

Density 

1.3126 (rough estimate)

refractive index 

10 ° (C=5, H2O)

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

solubility 

Water (Slightly)

pka

pK1: 2.108(+1);pK2: 9.096(0) (25°C)

form 

Crystalline Powder

color 

White to off-white

optical activity

[α]23/D +9.0°, c = 2 in H2O

BRN 

1721645

CAS DataBase Reference

28954-12-3(CAS DataBase Reference)

Safety Information

Safety Statements 

24/25

WGK Germany 

3

RTECS 

BA4055000

HS Code 

29225090

MSDS

• Language:English Provider:L(+)-allo-Threonine
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS

L(+)-allo-Threonine Usage And Synthesis

Chemical Properties

white to off-white crystalline powder

Uses

L-allo-Threonine is a reactant used in the synthesis of an antibiotic, globomycin, and its congener, SF-1902 A5.

Definition

ChEBI: L-allothreonine is the L-enantiomer of allothreonine. It has a role as an Escherichia coli metabolite and a Saccharomyces cerevisiae metabolite. It is an allothreonine and a L-alpha-amino acid. It is an enantiomer of a D-allothreonine. It is a tautomer of a L-allothreonine zwitterion.

L(+)-allo-Threonine(28954-12-3)Related Product Information

• 4-Aminobutyric acid
• ALTRENOGEST
• L-Threonine
• DL-4-Amino-3-hydroxybutyric acid
• 3-Hydroxybutyric acid
• Glycine
• L-Alanine
• H-PHG-OME HCL
• (S)-(+)-2-Amino-3-hydroxy-3-methylbutanoic acid
• POLYOXIN B
• (2S,3S)-2-Amino-3-methoxybutanoic acid
• TRANS-3-HYDROXY-L-PROLINE
• MYRIOCIN
• (2S,3S)-(2S,3R)-2-AMINO-3-HYDROXY-4-METHYLPENTANOIC ACID
• (2R,3R)-(-)-ALLO-THREONINE,D(-)-ALLO-THREONINE,D-ALLO-THREONINE
• DL-ALLO-THREONINE
• FMOC-ALLO-THR(TBU)-OH
• H-ALLO-THR(TBU)-OH,ALLO-THREONINE(TBU)-OH,O-T-BUTYL-L-ALLO-THREONINE