Fmoc-L-天冬氨酸4-叔丁酯，Fmoc-Asp(OtBu)-OH；Novabiochem®, ≥ 99.0% (a/a)

High purity Fmoc-protected amino acid for research and process production of peptides, with very low levels of dipeptide, free-amino acids and acetic acid impurities.
Standard building block for introduction of aspartic acid amino-acid residues by Fmoc SPPS

Associated Protocols and Technical Articles
Cleavage and Deprotection Protocols for Fmoc SPPS

 

Replaces: 04-12-1013

 

Colour (visual): white to off white
Appearance of substance (visual): powder
Colour index (0,5 M in DMF): ≤ 150 Hazen
Identity (IR): passes test
Enantiomeric purity: ≥ 99.8 % (a/a)
Purity (HPLC): ≥ 99.0 % (a/a)
Fmoc-ß-Ala-OH (HPLC): ≤ 0.1 % (a/a)
Fmoc-ß-Ala-Asp (OtBu)-OH (HPLC): ≤ 0.1 % (a/a)
Fmoc-Asp(OtBu)-Asp(OtBu)-OH (HPLC): ≤ 0.1 % (a/a)
Fmoc-Asp-OH (HPLC): ≤ 0.1 % (a/a)
Assay free amino acid (GC): ≤ 0.2 %
Purity (TLC(011A)): ≥ 98 %
Purity (TLC(0811)): ≥ 98 %
Solubility (25 mmole in 50 ml DMF): clearly soluble
Assay (acidimetric): ≥ 98.0 %
Water (K. F.): ≤ 2.0 %
Ethyl acetate (HS-GC): ≤ 0.5 %
Acetate (IC): ≤ 0.02 %

To see the solvent systems used for TLC of Novabiochem^® products please click here.

 

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