$28.57 - $85.71
N-Cbz-DL-His-OH (CAS 19728-57-5) is supplied as a Protected amino-acid / peptidomimetic building block. In research synthesis, it is most relevant to peptide, peptidomimetic and medicinal-chemistry synthesis and a noncanonical or specially protected residue used to expand peptide and small-molecule chemical space.
Use when the target structure specifically requires this residue or protection pattern; confirm stereochemistry and deprotection compatibility before substituting it into an established route. Its value is route-specific, so selection should follow the intended transformation rather than the broad category label.
Product Information
| Product Name | N-Cbz-DL-His-OH |
| Catalog No. | AS4240 |
| CAS No. | 19728-57-5 |
| Molecular Formula | C14H15N3O4 |
| Molecular Weight | 289.29 g/mol |
| Compound Type | Protected amino-acid / peptidomimetic building block |
| Primary Research Use | Peptide, peptidomimetic and medicinal-chemistry synthesis |
Application in Peptide and Peptidomimetic Design
N-Cbz-DL-His-OH expands accessible chemical space through a noncanonical or specially protected residue used to expand peptide and small-molecule chemical space. This makes the product most relevant to sequence-defined SAR, conformational studies or specialized synthetic targets.
What to Check Before Incorporation
Confirm stereochemistry, free versus protected functional groups and the planned cleavage sequence. These details affect activation choice, solubility and the identity of the final residue.
Procurement Relevance
Use CAS 19728-57-5 together with the full product name when comparing suppliers. Similar shorthand names can refer to different positional isomers or protection states.
Additional chemistry is available in the specialty amino acid set. For synthesis planning beyond the building block, see specialty SPPS building blocks.
Product Documents
MSDS - N-Cbz-DL-His-OH (AS4240)
The Safety Data Sheet provides product identification, hazard information, handling and storage guidance, exposure controls, transport information, and regulatory information for laboratory use.
Certificates of Analysis (COAs) are batch-specific. Please contact us to request the COA for your product, and we will provide it by email.
Frequently Asked Questions
Why does the exact derivative matter?
N-Cbz-DL-His-OH is selected for its defined functional groups and protection pattern; related forms can require different coupling or deprotection conditions.
Can a close analog replace N-Cbz-DL-His-OH?
Not safely by name alone. For N-Cbz-DL-His-OH, compare stereochemistry, protecting groups, salt/ester form and the intended downstream transformation.
What should procurement verify?
Match the product to CAS 19728-57-5 and the lot-specific COA rather than relying only on a shorthand chemical name.