Z-Asp-OMe
Z-Asp-OMe (CAS: 4668-42-2) is a N-Cbz protected L-aspartic acid alpha-methyl ester with a molecular weight of 281.26 g/mol. This amino acid derivative is supplied by TSS with an assay of ≥98.0% (TLC). It finds application in chemical synthesis, particularly in peptide chemistry and broader chemical biology research. TSS provides reliable sourcing for this fine chemical.
- IUPAC
- N-Cbz-L-aspartic acid α-methyl ester,Z-L-Aspartic acid 1-methyl ester
- Synonyms
- N-Cbz-L-aspartic acid α-methyl esterZ-L-Aspartic acid 1-methyl ester

Peptide Synthesis
Z-Asp-OMe serves as a valuable building block in the synthesis of peptides, where the N-Cbz protection and alpha-methyl ester group facilitate controlled coupling reactions.
Chemical Biology Research
This derivative is utilised in chemical biology for constructing modified peptides or probing biological systems, leveraging its specific structural features.
Organic Synthesis Intermediate
It acts as a versatile intermediate in various organic synthesis pathways, enabling the introduction of protected aspartic acid moieties into complex molecules.
| Molecular weight | 281.26 |
|---|---|
| Linear formula | HO2CCH2CH(NHCO2CH2C6H5)CO2CH3 |
| Assay | ≥98.0% (TLC) |


Hazard statements
- H302Harmful if swallowed
- H318Causes serious eye damage
- H332Harmful if inhaled
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/22-37-41 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Z-Asp-OMe primarily used for?
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Z-Asp-OMe is primarily used as a building block in peptide synthesis, in chemical biology research, and as an intermediate in organic synthesis.
What are the CAS number and formula for Z-Asp-OMe?
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The CAS number for Z-Asp-OMe is 4668-42-2. Its linear formula is HO2CCH2CH(NHCO2CH2C6H5)CO2CH3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Z-Asp-OMe with an assay of ≥98.0% (TLC). This is a research-grade chemical, and TSS does not represent it as USP, BP, or EP grade.
What are the main safety considerations when handling Z-Asp-OMe?
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Z-Asp-OMe is classified with Danger signal word, with hazards including H302 (Harmful if swallowed), H318 (Causes serious eye damage), and H332 (Harmful if inhaled). Appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves, should be worn. Ensure adequate ventilation.
Is Z-Asp-OMe a controlled substance?
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The provided data does not indicate that Z-Asp-OMe is a controlled substance.
How is Z-Asp-OMe packed and exported?
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Tech Serve Solutions, as a specialist global supplier and exporter, ensures appropriate packaging for Z-Asp-OMe to meet international shipping standards.
How can I request a sample or a quote for Z-Asp-OMe?
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Please contact the TSS sales team through our website or by phone to request a sample or a detailed quotation for Z-Asp-OMe.
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