Impurity Reference Standard - Products

Threonine

CAT No: CL-TONE-01 CAS No: 72-19-5 Mol Wt: 119.1 Mol F: C4H9NO3 Inv Status: Custom Synthesis

Chemical Name: (2S,3R)-2-Amino-3-hydroxybutanoic acid (as per EP & USP)

Threonine EP Impurity A

CAT No: CL-TONE-02 CAS No: 672-15-1 Mol Wt: 119.1 Mol F: C4H9NO3 Inv Status: Custom Synthesis

Chemical Name: (2S)-2-amino-4-hydroxybutanoic acid (as per EP)

Threonine EP Impurity B

CAT No: CL-TONE-03 CAS No: 56-41-7 Mol Wt: 89.1 Mol F: C3H7NO2 Inv Status: Custom Synthesis

Chemical Name: (2S)-2-aminopropanoic acid (as per EP)

Threonine EP Impurity C

CAT No: CL-TONE-04 CAS No: 72-18-4 Mol Wt: 117.1 Mol F: C5H11NO2 Inv Status: Custom Synthesis

Chemical Name: (2S)-2-amino-3-methylbutanoic acid (as per EP)

Threonine EP Impurity D

CAT No: CL-TONE-05 CAS No: 73-32-5 Mol Wt: 131.2 Mol F: C6H13NO2 Inv Status: Custom Synthesis

Chemical Name: (2S,3S)-2-amino-3-methylpentanoic acid (as per EP)

Threonine EP Impurity E

CAT No: CL-TONE-06 CAS No: 56-87-1 Mol Wt: 146.2 Mol F: C6H14N2O2 Inv Status: Custom Synthesis

Chemical Name: (2S)-2,6-diaminohexanoic acid (as per EP)

N-Cbz-D-Threonine

CAT No: CL-TONE-07 CAS No: 80384-27-6 Mol Wt: 253.3 Mol F: C12H15NO5 Inv Status: Custom Synthesis

Chemical Name: ((Benzyloxy)carbonyl)-D-threonine

N-Benzyloxycarbonyl L-Threonine Amide

CAT No: CL-TONE-08 CAS No: 49705-98-8 Mol Wt: 252.3 Mol F: C12H16N2O4 Inv Status: Custom Synthesis

Chemical Name: Benzyl ((2S,3R)-1-amino-3-hydroxy-1-oxobutan-2-yl)carbamate

Threonine Impurity 1

CAT No: CL-TONE-09 CAS No: 84449-06-9 Mol Wt: 267.3 Mol F: C13H17NO5 Inv Status: Custom Synthesis

Chemical Name: Methyl ((benzyloxy)carbonyl)-D-threoninate