Description

L-Aspartic Acid, n-[(Phenylmethoxy)Carbonyl]-L-Alanyl-, 24-(1,1-Dimethylethyl) Ester (9Ci) is a protected dipeptide derivative, specifically a Boc-protected aspartic acid-alanine building block. This compound is of critical importance in solid-phase peptide synthesis (SPPS) for the controlled assembly of complex peptides and proteins. It is primarily needed by research institutions and pharmaceutical companies engaged in the development of novel therapeutic peptides, diagnostic agents, and biochemical tools.

Application

• Solid-Phase Peptide Synthesis (SPPS): As a key, protected amino acid building block for the sequential construction of custom peptide sequences.
• Pharmaceutical Research & Development: For the synthesis of peptide-based drug candidates targeting various diseases.
• Bioconjugation: Used to introduce specific functional groups or linkers into peptides for labeling or attachment to other molecules.
• Biochemical Research: In the study of enzyme-substrate interactions, protein folding, and structure-activity relationships (SAR).
• Production of Specialty Peptides: For manufacturing high-value, non-standard peptides used in diagnostics and research reagents.

Basic Information

Product Name	L-Aspartic Acid, n-[(Phenylmethoxy)Carbonyl]-L-Alanyl-, 24-(1,1-Dimethylethyl) Ester (9Ci)
CAS No.	3408-50-2
Molecular Formula	C19H26N2O7
Molecular Weight	394.42 g/mol
Synonyms	Boc-Asp(OBzl)-Ala-OH; Boc-L-Aspartic acid 4-benzyl ester-L-alanine; N-(tert-Butoxycarbonyl)-L-aspartic acid 4-benzyl ester-L-alanine; Boc-Asp(OBzl)-Ala; Fmoc-L-Asp(OtBu)-OH (Note: This is a common related compound, verify structure); N-[(Phenylmethoxy)carbonyl]-L-alanyl-L-aspartic acid 1-(1,1-dimethylethyl) ester; (S)-2-((S)-2-((tert-Butoxycarbonyl)amino)-4-(benzyloxy)-4-oxobutanamido)propanoic acid; Boc-Asp(OBzl)-Ala-OH (peptide grade)
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards for peptide synthesis. Certificates of Analysis (COA) are available upon request and provide batch-specific data for critical parameters such as chiral purity, chemical purity (by HPLC), and moisture content. We adhere to strict in-process controls to guarantee the integrity of the protecting groups and the absence of racemization.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is sealed tightly after each use to prevent degradation from atmospheric moisture. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation	Contact for details
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.