Propargyl-Tos

SKU:BHB21902600
Overview
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Propargyl-Tos (CAS 23418-85-1) is an ADC linker supplied as a liquid. Relevant to Antibody-Drug Conjugate/ADC Related research. Molecular formula C11H12O3S, molecular weight 224.28 g/mol.
Purity 98.74%
CAS Number 23418-85-1
Molecular Weight 224.28 g/mol
Form Liquid
Storage -20°C as supplied; in solvent -80°C
Options selector
Catalog no. Size
HY-79584-1G 1 g
HY-79584-5G 5 g
HY-79584-10G 10 g
HY-79584-50G 50 g
Available Options

Select the variant that best fits your experiment. Availability and lead time may vary by option.

  • Options: Size: 1 g, 5 g, 10 g, 50 g
  • Lead time: varies by selected option.
  • Storage: Pure form: -20°C, 3 years; 4°C, 2 years. In solvent: -80°C, 6 months; -20°C, 1 month.
  • Shipping: Room temperature in continental US; may vary elsewhere.
  • Upon receipt: transfer to -20°C as soon as possible.
Field Specification
CAS no. 23418-85-1
Applications
  • Functional Assay (In Vitro)
Molecular weight 224.28
Molecular formula C11H12O3S
Purity 98.74%
Activity
  • Cleavable Linker
SMILES C#CCCOS(C1=CC=C(C)C=C1)(=O)=O
Form Liquid
Storage Pure form: -20°C, 3 years; 4°C, 2 years. In solvent: -80°C, 6 months; -20°C, 1 month.
Shipping Room temperature in continental US; may vary elsewhere.
Catalog no. (Mfr.) HY-79584
Main SKU BHB21902600
ADC Linkers & Payloads

Compound Overview

Propargyl-Tos is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. It is also a click chemistry reagent that contains an alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAC) with molecules bearing azide groups. It is supplied as a colorless to light yellow liquid (C11H12O3S, MW 224.28) at 98.74% purity.

Physical & Chemical Properties

CAS Number 23418-85-1
Molecular Formula C11H12O3S
Molecular Weight 224.28 g/mol
Purity 98.74%
Appearance Liquid
Color Colorless to light yellow
Density 1.27 g/cm3
SMILES C#CCCOS(C1=CC=C(C)C=C1)(=O)=O
Signaling Pathway Antibody-Drug Conjugate/ADC Related
Bioactivity Class Cleavable Linker
Storage Pure form: -20°C, 3 years; 4°C, 2 years. In solvent: -80°C, 6 months; -20°C, 1 month.
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.

[1]. Beck A, et al. Strategies and challenges for the next generation of antibody-drug conjugates. Nat Rev Drug Discov. 2017 May;16(5):315-337.

Safety

For Research Use Only. Not for use in diagnostic or therapeutic procedures, and not for human or veterinary use. Handle in accordance with the Safety Data Sheet and your institution's chemical hygiene plan.

Q.Why is there no price on some sizes?
A.Availability and lead time for those sizes are confirmed on inquiry. Send us the size you need and we will come back with price and lead time.
Q.Can this be used in humans or for diagnostics?
A.No. This product is supplied For Research Use Only. It is not for diagnostic or therapeutic procedures and not for human or veterinary use.

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

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