Acetylides
Medchemexpress LLC E -Pent-2-enal 50g
(E)-Pent-2-enal has a pungent fruity odor This compound is commonly used in the flavor and fragrance industry because of its strong aroma often described as fresh and green Furthermore (E)-Pent-2-enal can be used as an intermediate in the synthesis of various organic compounds including pharmaceuticals and agrochemicals Its unique chemical properties make it an important ingredient in many commercial products including perfumes air fresheners and cleaners
Medchemexpress LLC Propargyl-PEG3-acid | 1347760-82-0 | 99.1% | 216.23 | C10H16O5 | 250 MG
Propargyl-PEG3-acid is a PEG-based bifunctional linker featuring a terminal propargyl (alkyne) group and a carboxylic acid; it is used as a non-cleavable three-unit PEG linker for antibody-drug conjugates and as a PEG linker for PROTACs, enabling copper-catalyzed azide-alkyne cycloaddition (CuAAC) click chemistry.
- Non-cleavable three-unit PEG linker suitable for ADC and PROTAC synthesis.
- Terminal alkyne enables copper-catalyzed azide-alkyne cycloaddition for conjugation to azide-containing molecules.
- High purity appropriate for research-scale bioconjugation workflows.
- Available in multiple pack sizes to support small-scale and larger preparative work.
eMolecules 4-Fluoro-2-(trifluoromethoxy)-DL-phenylalanine | 1435806-18-0 | MFCD19687192 | 1g
Apollo Scientific | 4-Fluoro-2-(trifluoromethoxy)-DL-phenylalanine | 1g | 562460231 | PC302877 | | 1435806-18-0 | MFCD19687192 | 267.180 | C10H9F4NO3
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Medchemexpress LLC Propargyl-PEG2-Tos | 145916-41-2 | MFCD29764327 | >98.0% | C12H14O4S | 100 MG
Propargyl-PEG2-Tos is a laboratory chemical often used as a PROTAC linker for research applications. This compound is stable under recommended storage conditions. While essential for certain laboratory procedures, it is important to note that it may cause skin irritation, serious eye irritation, and respiratory irritation, requiring careful handling. It boasts a high purity of greater than 98.0%.
- Stable under recommended storage conditions
- May cause skin and serious eye irritation
- May cause respiratory irritation
- Suitable for laboratory use
- For research use only
- Purity greater than 98.0%
Medchemexpress LLC E -Pent-2-enal 100g
(E)-Pent-2-enal has a pungent fruity odor This compound is commonly used in the flavor and fragrance industry because of its strong aroma often described as fresh and green Furthermore (E)-Pent-2-enal can be used as an intermediate in the synthesis of various organic compounds including pharmaceuticals and agrochemicals Its unique chemical properties make it an important ingredient in many commercial products including perfumes air fresheners and cleaners
eMolecules 881402-25-1 | 2-Fluoro-3-(trifluoromethoxy)benzeneboronic acid | Apollo Scientific | MFCD11045053 | 223.920 | C7H5BF4O3 | 95.000 | OB(O)c1cccc(OC(F)(F)F)c1F | 1g | 562441206
2-Fluoro-3-(trifluoromethoxy)benzeneboronic acid | Apollo Scientific | 881402-25-1 | MFCD11045053 | 223.920 | C7H5BF4O3 | 95.000 | OB(O)c1cccc(OC(F)(F)F)c1F | 1g | 562441206
Sigma Aldrich Fine Chemicals Biosciences 3-Chloro-3-methyl-1-butyne 97% | 1111-97-3 | MFCD00190221 | 25G
3-Chloro-3-methyl-1-butyne 97% | Purity: 97% | Mol Wt: 102.56 | 1111-97-3 | MFCD00190221 | 25G
eMolecules 1072951-56-4 | (5-Bromo-2-(trifluoromethoxy)phenyl)boronic acid | MFCD11504857 | 1g
ChemScene | 2-Fluoro-4-hydroxybenzamide | 250mg | 632274220 | CS-0149671 | 1133122-96-9 | MFCD09999525 | 155.128 | C7H6FNO2
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eMolecules 207226-02-6 | 3-Ethynylaniline hydrochloride | MFCD12913913 | 1g
Ambeed | 3-((2-Hydroxyethyl)dimethylammonio)propane-1-sulfonate | 1g | 571785508 | A705705 | 38880-58-9 | MFCD01320397 | 211.280 | C7H17NO4S
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![Medchemexpress LLC 2-[2-(2-propynyloxy)ethoxy]ethanamine | 944561-44-8 | MFCD19160595 | 98.9% | 143.18 g/mol | C7H13NO2 | 25 G](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000202930.png-250.jpg)
Medchemexpress LLC 2-[2-(2-propynyloxy)ethoxy]ethanamine | 944561-44-8 | MFCD19160595 | 98.9% | 143.18 g/mol | C7H13NO2 | 25 G
Propargyl-PEG2-amine is a propargyl-terminated polyethylene glycol (PEG2) amine linker used for bioconjugation and synthetic chemistry. It is commonly used as a non-cleavable ADC linker, as a PEG-based PROTAC linker, and as a terminal alkyne reagent for copper-catalyzed azide-alkyne cycloaddition (click chemistry).
- Non-cleavable ADC linker for antibody-drug conjugate synthesis.
- Suitable as a PEG-based PROTAC linker.
- Terminal alkyne enables CuAAC click reactions with azides.
- Primary amine allows amide coupling and NHS-ester chemistry.
- Molecular formula C7H13NO2 and molecular weight 143.18 g/mol.
- High reported purity (manufacturer batch example ~98.9%), batch-dependent.
- Available in multiple pack sizes, including 25 G and larger quantities.
Medchemexpress LLC Propargyl-PEG3-methane | 89635-82-5 | 98.0% | 202.25 | 25 G
Propargyl-PEG3-methane is a PEG-based PROTAC linker utilized in the synthesis of PROTACs. It functions as a click chemistry reagent, containing an Alkyne group that can participate in copper-catalyzed azide-alkyne cycloaddition (CuAAc) reactions with molecules possessing Azide groups. For research use only. Not sold to patients.
- Click chemistry reagent
- Alkynes
- PROTAC synthesis
- PROTAC linkers
- Used in cancer research
- Applied in cancer targeted therapy
Medchemexpress LLC Propargyl-PEG5-Br | 1287660-83-6 | 339.22 | 100 MG
Propargyl-PEG5-Br is a PEG-based PROTAC linker used in the synthesis of PROTACs. It functions as a click chemistry reagent, containing an alkyne group that enables copper-catalyzed azide-alkyne cycloaddition (CuAAc) with azide-containing molecules. This mechanism exploits the intracellular ubiquitin-proteasome system to selectively degrade target proteins.
- Utilized in the synthesis of PROTACs
- Functions as a click chemistry reagent
- Contains an alkyne group
- Enables copper-catalyzed azide-alkyne cycloaddition (CuAAc) with azide groups
- Exploits the intracellular ubiquitin-proteasome system
- Selectively degrades target proteins
![Medchemexpress LLC Propanoic acid, 3-[2-[[2-(2-propyn-1-yloxy)ethyl]dithio]ethoxy]- | 1807503-85-0 | ≥95.0% | 264.36 g/mol | C10H16O4S2 | 50 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000203722.png-250.jpg)
Medchemexpress LLC Propanoic acid, 3-[2-[[2-(2-propyn-1-yloxy)ethyl]dithio]ethoxy]- | 1807503-85-0 | ≥95.0% | 264.36 g/mol | C10H16O4S2 | 50 MG
Cleavable two-unit polyethylene glycol (PEG) linker with a terminal propargyl (alkyne) group for click chemistry and antibody-drug conjugate (ADC) synthesis. It contains a reducible disulfide linkage and is suitable for copper-catalyzed azide-alkyne cycloaddition (CuAAC). Supplied with ≥95.0% purity; molecular weight 264.36 g/mol; CAS 1807503-85-0.
- Cleavable disulfide linker enabling cytosolic release
- Terminal alkyne for copper-catalyzed azide-alkyne cycloaddition
- Two-unit PEG spacer improves solubility and linker flexibility
- High purity suitable for conjugation reactions
- Available in multiple package sizes for research use