8.52037

Fmoc-Asp-OtBu

Novabiochem^®

• Sinónimos: Fmoc-Asp-OtBu, N-α-Fmoc-L-aspartic acid α-t.-butyl ester
• Fórmula empírica (notación de Hill): C₂₃H₂₅NO₆
• Número de CAS: 129460-09-9
• Peso molecular: 411.45
• UNSPSC Code: 12352209
• NACRES: NA.22

Propiedades

• Quality Level: 200
• product line: Novabiochem^®
• assay: ≥90.0% (acidimetric); ≥98% (TLC); ≥98.0% (HPLC)
• form: powder
• reaction suitability: reaction type: Fmoc solid-phase peptide synthesis
• manufacturer/tradename: Novabiochem^®
• mp: 90-98 °C
• application(s): peptide synthesis
• functional group: carboxylic acid
• storage temp.: 2-30°C
• InChI: 1S/C23H25NO6/c1-23(2,3)30-21(27)19(12-20(25)26)24-22(28)29-13-18-16-10-6-4-8-14(16)15-9-5-7-11-17(15)18/h4-11,18-19H,12-13H2,1-3H3,(H,24,28)(H,25,26)/t19-/m0/s1
• InChI key: VZXQYACYLGRQJU-IBGZPJMESA-N

Descripción

General description

Selectively protected building block for library synthesis or the preparation of β-aspartyl peptides by Fmoc SPPS. After condensation of the side-chain carboxy with an appropriate amine or alcohol, the β-amino and carboxy functions can be selectively unmasked with 20% piperidine in DMF and 50% TFA in DCM respectively, facilitating the synthesis of branched esters and amides, and lactams and lactones containing the aspartyl unit.

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

Linkage

Replaces: 04-12-1080

Analysis Note

Color (visual): white to slight yellow to beige
Appearance of substance (visual): powder
Identity (IR): passes test
Enantiomeric purity: ≥ 99.0 % (a/a)
Purity (TLC(011A)): ≥ 98 %
Purity (TLC(0811)): ≥ 98 %
Assay (HPLC, area%): ≥ 98.0 % (a/a)
Solubility (1 mmole in 2 ml DMF): clearly soluble
Assay (acidimetric): ≥ 90.0 %
Water (K. F.): ≤ 1.00 %

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

Legal Information

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

Información de seguridad

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable