Acetylides

Medchemexpress LLC Propargyl-PEG3-OCH2-Boc | 888010-02-4 | >95.0% | 302.36 g/mol | C15H26O6 | 5 MG

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Propargyl-PEG3-OCH2-Boc is a Boc-protected PEG3 linker bearing a terminal propargyl (alkyne) group. It is a click-chemistry building block used for copper-catalyzed azide-alkyne cycloaddition (CuAAC) and is commonly applied in PROTAC synthesis, bioconjugation, and small-molecule linker assembly. The PEG3 spacer improves solubility and provides flexibility for efficient conjugation.

• Boc-protected terminal alkyne suitable for CuAAC click reactions.
• Three-unit PEG spacer enhances solubility and conformational flexibility.
• Suitable for PROTAC linker synthesis and general bioconjugation.
• Compatible with common organic solvents such as DMSO and DMF.
• Available in research-scale quantities for synthesis and optimization.

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eMolecules​ 1066-54-2 | Trimethylsilylacetylene | Combi-Blocks | MFCD00008569 | 98.220 | C5H10Si | 95.000 | C[Si](C)(C)C#C | 100g | 267169362

Trimethylsilylacetylene | Combi-Blocks | 1066-54-2 | MFCD00008569 | 98.220 | C5H10Si | 95.000 | C[Si](C)(C)C#C | 100g | 267169362

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Medchemexpress LLC FMOC-AMINO-PEG3-CH2C 250MG | 250MG

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FMOC-AMINO-PEG3-CH2C 250MG | 250MG

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Chemscene ChemScene | 4-Chloro-2-(trifluoromethoxy)aniline | 10G | CS-W015037 | 0.98 | 175205-77-3| MFCD00153102 | 211.57

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ChemScene | 4-Chloro-2-(trifluoromethoxy)aniline | 10G | CS-W015037 | 0.98 | 175205-77-3| MFCD00153102 | 211.57

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Aobchem AOBCHEM

5000873458 1- M-TOLYL PENT-1-YN-3-OL 250M

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eMolecules​ 22287-32-7 | (BICYCLO[1.1.1]PENT-1-YL)METHANOL | AstaTech | MFCD28040494 | 98.145 | C6H10O | 95.000 | OCC12CC(C1)C2 | 0.25g | 624132233

(BICYCLO[1.1.1]PENT-1-YL)METHANOL | AstaTech | 22287-32-7 | MFCD28040494 | 98.145 | C6H10O | 95.000 | OCC12CC(C1)C2 | 0.25g | 624132233

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eMolecules​ 764-37-4 | (E)-Pent-3-en-1-ol | Combi-Blocks, Inc. | MFCD07636756 | 86.134 | C5H10O | 95.000 | C\C=C\CCO | 10g | 854189544

(E)-Pent-3-en-1-ol | Combi-Blocks, Inc. | 764-37-4 | MFCD07636756 | 86.134 | C5H10O | 95.000 | C\C=C\CCO | 10g | 854189544

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eMolecules​ 1066-54-2 | Trimethylsilylacetylene | Combi-Blocks | MFCD00008569 | 98.220 | C5H10Si | 95.000 | C[Si](C)(C)C#C | 25g | 267169361

Trimethylsilylacetylene | Combi-Blocks | 1066-54-2 | MFCD00008569 | 98.220 | C5H10Si | 95.000 | C[Si](C)(C)C#C | 25g | 267169361

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Medchemexpress LLC MEDCHEMEXPRESS LLC

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5000377187 NST-628 50MG

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Medchemexpress LLC Bis-propargyl-PEG6 250mg | 400775-35-1 | 358.43 g/mol | C18H30O7 | 250 MG

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Bis-propargyl-PEG6 is a PEG-based bifunctional linker with terminal propargyl (alkyne) groups used in bioconjugation and PROTAC synthesis for research purposes. It provides a short PEG spacer with reactive alkynes for modular assembly in medicinal chemistry and chemical biology workflows.

• Bifunctional propargyl termini enable copper-catalyzed azide-alkyne cycloaddition (click chemistry).
• PEG6 spacer improves solubility and imparts conformational flexibility.
• Suitable for linker installation in PROTACs and conjugation strategies.
• Supplied for research use only; not intended for pharmaceutical, food, or household use.
• Available in small research pack sizes (commonly 250 MG).

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eMolecules​ 927-74-2 | 3-Butyn-1-ol | Oakwood Chemicals | MFCD00002955 | 70.091 | C4H6O | 98.000 | OCCC#C | 5g | 480108297

3-Butyn-1-ol | Oakwood Chemicals | 927-74-2 | MFCD00002955 | 70.091 | C4H6O | 98.000 | OCCC#C | 5g | 480108297

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Medchemexpress LLC MEDCHEMEXPRESS LLC

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5000701132 TOS-PEG2-O-PROPARGYL 100MG

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Medchemexpress LLC MEDCHEMEXPRESS LLC

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5000379125 BIS-PROPARGYL-PEG2 1G

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Medchemexpress LLC MEDCHEMEXPRESS LLC

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5000369402 O-PROPARGYL-PUROMYCI 500MG

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eMolecules​ 1351373-47-1 | Bis-propargyl-PEG10 | Broadpharm | MFCD28976686 | 490.590 | C24H42O10 | 95.000 | C#CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCC#C | 250mg | 296213608

Bis-propargyl-PEG10 | Broadpharm | 1351373-47-1 | MFCD28976686 | 490.590 | C24H42O10 | 95.000 | C#CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCC#C | 250mg | 296213608

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