| Field | Specification |
|---|---|
| CAS no. | |
| Applications | |
| Molecular weight | |
| Molecular formula | C18H26N2O9 |
| SMILES | |
| Storage | |
| Shipping | |
| Catalog no. (Mfr.) | |
| Main SKU |
Compound Overview
Propargyl-O-C1-amido-PEG3-C2-NHS ester functions as a non-cleavable, 3-unit PEG linker in the synthesis of antibody-drug conjugates (ADCs)[1]. As a click chemistry reagent, it carries an alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAC) with molecules bearing azide groups. It has the molecular formula C18H26N2O9 and a molecular weight of 414.41 g/mol.
Physical & Chemical Properties
| CAS Number | 2101206-78-2 |
|---|---|
| Molecular Formula | C18H26N2O9 |
| Molecular Weight | 414.41 g/mol |
| SMILES | C#CCOCC(NCCOCCOCCOCCC(ON1C(CCC1=O)=O)=O)=O |
| Signaling Pathway | Antibody-Drug Conjugate/ADC Related |
| Storage | Please store the product under the recommended conditions in the Certificate of Analysis. |
| Shipping | Room temperature in continental US; may vary elsewhere. |
Literature Cited
Sources cited in this description. Peer-reviewed publications that used this product are listed under References.
Safety
For Research Use Only. Not for use in diagnostic or therapeutic procedures, and not for human or veterinary use. Handle in accordance with your institution's chemical hygiene plan.
Need this compound in a format that drops straight into your assay? We can tailor formulation, chemistry, and documentation so your results stay consistent across runs and re-orders.
- Format options: solid or pre-dissolved solution (choose solvent), target concentration, aliquots, light/moisture-protected packaging
- Chemistry options: free base/acid vs salt forms, hydrate/solvate preference, stereoisomer control (single enantiomer or racemate), close analogs
- Add-on labels & handles: D/¹³C/¹⁵N isotopes (LC-MS/internal standards), azide/alkyne or other functional handles for conjugation
- QC & documentation: standard COA or enhanced analytical pack (HPLC/LC-MS/NMR), chiral purity, residual solvents, water content (KF), method-specific specs
- Scale & continuity: mg to gram scale, bulk pricing, lot reservation, repeat-order continuity
To quote quickly, tell us: compound name + CAS/structure (SMILES or mol file), intended assay context, solvent preference, salt/stereochemistry requirements, purity/QC level, and the amount (mg–g).
Can’t find the compound you’re looking for?
Send the CAS or structure and your specs. We can help source it, suggest close equivalents, or discuss custom synthesis with the right QC documentation (RUO).
