8.52044

FMOC-Asn(Trt)-OH

N-α-Fmoc-N-ß-trityl-L-asparagine Novabiochem^®

• Synonyme(s) : FMOC-Asn(Trt)-OH, N-α-Fmoc-N-β-trityl-L-asparagine
• Formule empirique (notation de Hill): C₃₈H₃₂N₂O₅
• Numéro CAS: 132388-59-1
• Poids moléculaire : 596.67
• Numéro MDL: MFCD00077049
• Code UNSPSC : 12352209
• Nomenclature NACRES : NA.22

Propriétés

• Niveau de qualité: 400
• Gamme de produits: Novabiochem^®
• Pureté: ≥98% (TLC); ≥98.0% (acidimetric); ≥99.0% (HPLC)
• Forme: powder
• Puissance: >2000 mg/kg LD₅₀, oral (Rat)
• Capacité de réaction: reaction type: Fmoc solid-phase peptide synthesis
• Fabricant/nom de marque: Novabiochem^®
• Pf: 210-220 °C
• Solubilité: <0.00005 g/L
• Application(s): peptide synthesis
• Groupe fonctionnel: amide
• Température de stockage: −20°C (−15°C to −25°C)
• InChI: 1S/C38H32N2O5/c41-35(40-38(26-14-4-1-5-15-26,27-16-6-2-7-17-27)28-18-8-3-9-19-28)24-34(36(42)43)39-37(44)45-25-33-31-22-12-10-20-29(31)30-21-11-13-23-32(30)33/h1-23,33-34H,24-25H2,(H,39,44)(H,40,41)(H,42,43)/p-1/t34-/m0/s1
• Clé InChI: KJYAFJQCGPUXJY-UMSFTDKQSA-M

Description

Description générale

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.
Fmoc-Asn(Trt)-OH has good solubility properties in most organic solvents, and its use has been shown to result in significantly purer peptides than other derivatives used for the introduction of Asn ^[1,2]. Coupling can be performed by standard procedures. The trityl group is normally removed by 95% TFA in 1-3 hours, with no alkylation of Trp residues. When Asn(Trt) is the N-terminal residue, the reaction time may need to be extended to ensure complete deprotection ^[3].

Associated Protocols and Technical Articles
Fmoc-amino acids for Peptide Production
Cleavage and Deprotection Protocols for Fmoc SPPS

Literature references

^[1] P. Sieber, et al. in ′Innovation & Perspectives in Solid Phase Synthesis, 1st International Symposium′, R. Epton (Eds), SPCC UK Ltd., Birmingham, 1990, pp. 577.
^[2] P. Sieber, et al. (1991) Tetrahedron Lett., 32, 739.
^[3] M. Friede, et al. (1992) Pept. Res., 5, 145.

Application

• Synthesis of a burkholdine analogue containing β-hydroxytyrosine: This study discusses the synthesis of a burkholdine analogue, utilizing Fmoc-Asn(Trt)-OH as part of the solid support loading process (Kato et al., 2019).

Liaison

Replaces: 04-12-1089

Remarque sur l'analyse

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: ≥ 99.7 % (a/a)
Purity (HPLC): ≥ 99.0 % (a/a)
Fmoc-ß-Ala-OH (HPLC): ≤ 0.1 % (a/a)
Fmoc-ß-Ala-Asn (Trt)-OH (HPLC): ≤ 0.1 % (a/a)
Fmoc-Asn(Trt)-Asn(Trt)-OH (HPLC): ≤ 0.1 % (a/a)
Fmoc-Asn-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): ≤ 0.05 %

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

Informations légales

Novabiochem is a registered trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• Pictogrammes: GHS09
• Mentions de danger: H411
• Conseils de prudence: P273 - P391 - P501
• Classification des risques: Aquatic Chronic 2
• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 2
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable