Description

Z-Tyr-Obzl is a protected tyrosine derivative, specifically the benzyl ester of N-carbobenzoxy-L-tyrosine. This compound serves as a crucial chiral building block and intermediate in advanced organic synthesis, particularly in the pharmaceutical and peptide research sectors. Its primary value lies in providing a protected tyrosine side chain, enabling the controlled synthesis of complex peptides and bioactive molecules without unwanted side reactions. This makes it essential for researchers and manufacturers in pharmaceutical development, biotechnology, and fine chemical production who require high-purity, structurally defined intermediates.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of peptide-based drugs and active pharmaceutical ingredients (APIs).
• Peptide Synthesis: Used in solid-phase and solution-phase peptide synthesis to incorporate protected tyrosine residues.
• Bioconjugation & Probe Development: Serves as a precursor for creating fluorescent probes, affinity labels, and other bioconjugates for research.
• Chemical Biology Research: Employed in the study of enzyme mechanisms, receptor-ligand interactions, and signal transduction pathways.
• Fine Chemical Synthesis: Intermediate for the production of more complex, tyrosine-containing organic molecules and specialty chemicals.
• Academic & Industrial R&D: A standard reagent in laboratories focused on medicinal chemistry and novel therapeutic development.

Basic Information

Product Name	Z-Tyr-Obzl
CAS No.	5513-40-6
Molecular Formula	C18H19NO5
Molecular Weight	329.35 g/mol
Synonyms	N-Carbobenzoxy-L-tyrosine benzyl ester; Z-L-Tyrosine benzyl ester; Z-Tyrosine-OBzl; Z-Tyr-OBzl; Nα-Cbz-L-tyrosine benzyl ester; Benzyl N-[(benzyloxy)carbonyl]-L-tyrosinate; (2S)-2-[[(Benzyloxy)carbonyl]amino]-3-(4-hydroxyphenyl)propanoic acid benzyl ester; CBZ-Tyrosine benzyl ester
EINECS	226-847-4

Quality Control

Our Z-Tyr-Obzl is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity suitable for research and synthesis applications. Quality is verified through comprehensive analytical testing, including HPLC for purity, chiral analysis for enantiomeric excess, and spectroscopic methods for structural confirmation. A Certificate of Analysis (COA) detailing specific results for each batch is provided to guarantee the material meets your technical requirements.

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) and should be handled in a dry environment to prevent degradation. For long-term storage, consider desiccant or inert atmosphere conditions.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥98.0%
Optical Rotation	[α]20/D: Contact for details
Melting Point	Contact for details
Loss on Drying	≤0.5%
Heavy Metals	≤20 ppm

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