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Propargyl-PEG4-thiol | CAS 1347750-80-4
| Catalog Number | R01-0129 |
| Category | Alkynes |
| Molecular Formula | C11H20O4S |
| Molecular Weight | 248.34 |
* Please be kindly noted products are not for therapeutic use. We do not sell to patients.
Product Introduction
Propargyl-PEG4-thiol is an alkyne-functionalized ADC linker with a terminal thiol for maleimide or disulfide chemistry. It enables flexible bioconjugation in antibody-drug conjugates, offering enhanced solubility, spacer length, and reduced steric hindrance.
Chemical Information
Product Specification
Computed Properties
| Synonyms | Alkyne-PEG4-thiol;Propyne-PEG4-SH; 3,6,9,12-Tetraoxapentadec-14-yne-1-thiol |
| Purity | >98.0% |
| Shelf Life | 0-4°C for short term (days to weeks), or -20°C for long term (months). |
| IUPAC Name | 2-[2-[2-(2-prop-2-ynoxyethoxy)ethoxy]ethoxy]ethanethiol |
| Canonical SMILES | C#CCOCCOCCOCCOCCS |
| InChI | InChI=1S/C11H20O4S/c1-2-3-12-4-5-13-6-7-14-8-9-15-10-11-16/h1,16H,3-11H2 |
| InChIKey | QFVYBCQBSOIWFU-UHFFFAOYSA-N |
| Solubility | 10 mm in DMSO |
| Density | 1.1±0.1 g/cm3 |
| Appearance | Colorless Liquid |
| Boiling Point | 332.9±37.0 °C at 760 mmHg |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| LogP | 0.09 |
| Storage | Store at -20 °C, keep in dry and avoid sunlight. |
| XLogP3 | 0 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 5 |
| Rotatable Bond Count | 12 |
| Exact Mass | 248.10823029 g/mol |
| Monoisotopic Mass | 248.10823029 g/mol |
| Topological Polar Surface Area | 37.9Ų |
| Heavy Atom Count | 16 |
| Formal Charge | 0 |
| Complexity | 178 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
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