Organo-Metalloid Compounds
- (1)
- (19)
- (142)
- (2)
- (10)
- (1)
- (1)
- (27)
- (21)
- (4)
- (63)
- (98)
- (12)
- (1)
- (1)
- (1)
- (1)
- (6)
- (3)
- (1)
- (3)
- (208)
- (156)
- (2)
- (25)
- (23)
- (13)
- (1)
- (3)
- (1)
- (1)
- (1)
- (1)
- (255)
- (85)
- (1)
- (1)
- (20)
- (9)
- (11)
- (30)
- (54)
- (3)
- (10)
- (1)
- (8)
- (2)
- (2)
- (8)
- (4)
- (2)
- (21)
- (2)
- (2)
- (3)
- (5)
- (4)
- (4)
- (2)
- (1)
- (1)
- (3)
- (2)
- (1)
- (1)
- (5)
- (2)
- (3)
- (2)
- (2)
- (5)
- (4)
- (1)
- (1)
- (3)
- (2)
- (2)
- (2)
- (1)
- (5)
- (3)
- (3)
- (2)
- (18)
- (3)
- (2)
- (2)
- (4)
- (4)
- (5)
- (1)
- (2)
- (2)
- (2)
- (4)
- (4)
- (1)
- (2)
- (5)
- (6)
- (2)
- (2)
- (4)
- (2)
- (3)
- (4)
- (4)
- (4)
- (3)
- (3)
- (2)
- (2)
- (1)
- (2)
- (1)
- (9)
- (3)
- (4)
- (2)
- (1)
- (1)
- (7)
- (3)
- (5)
- (9)
- (1)
- (3)
- (4)
- (1)
- (7)
- (4)
- (1)
- (4)
- (1)
- (8)
- (1)
- (10)
- (6)
- (3)
- (2)
- (2)
- (4)
- (7)
- (3)
- (2)
- (2)
- (2)
- (2)
- (5)
- (2)
- (3)
- (1)
- (1)
- (1)
- (1)
- (1)
- (2)
- (1)
- (1)
- (5)
- (9)
- (1)
- (1)
- (2)
- (1)
- (2)
- (2)
- (5)
- (2)
- (2)
- (2)
- (1)
- (1)
- (6)
- (6)
- (1)
- (1)
- (2)
- (5)
- (1)
- (1)
- (1)
- (4)
- (1)
- (4)
- (10)
- (2)
- (4)
- (1)
- (3)
- (6)
- (1)
- (1)
- (2)
- (2)
- (1)
- (2)
- (5)
- (2)
- (2)
- (2)
- (3)
- (2)
- (1)
- (2)
- (2)
- (1)
- (2)
- (4)
- (3)
- (1)
- (1)
- (3)
- (3)
- (2)
- (4)
- (2)
- (2)
- (2)
- (3)
- (1)
- (1)
- (2)
- (1)
- (1)
- (3)
- (1)
- (8)
- (3)
- (1)
- (5)
- (1)
- (2)
- (2)
- (3)
- (1)
- (3)
- (8)
- (6)
- (1)
- (3)
- (9)
- (2)
- (2)
- (1)
- (3)
- (1)
- (2)
- (1)
- (2)
- (3)
- (2)
- (1)
- (2)
- (2)
- (1)
- (3)
- (6)
- (5)
- (3)
- (1)
- (10)
- (2)
- (5)
- (1)
- (3)
- (2)
- (1)
- (2)
- (2)
- (2)
- (2)
- (1)
- (2)
- (2)
- (8)
- (2)
- (1)
- (3)
- (2)
- (1)
- (1)
- (1)
- (7)
- (3)
- (2)
- (2)
- (8)
- (15)
- (1)
- (1)
- (2)
- (2)
- (2)
- (2)
- (2)
- (3)
- (1)
- (2)
- (1)
- (2)
- (2)
- (2)
- (3)
- (1)
- (1)
- (1)
- (4)
- (2)
- (2)
- (1)
- (1)
- (2)
- (2)
- (1)
- (5)
- (2)
- (2)
- (1)
- (2)
- (1)
- (11)
- (2)
- (1)
- (2)
- (2)
- (2)
- (5)
- (2)
- (4)
- (1)
- (1)
- (3)
- (1)
- (2)
- (1)
- (2)
- (1)
- (3)
- (1)
- (1)
- (1)
- (1)
- (2)
- (1)
- (1)
- (1)
- (1)
- (2)
- (1)
- (1)
- (3)
- (2)
- (1)
- (2)
- (2)
- (3)
- (2)
- (2)
- (4)
- (5)
- (3)
- (4)
- (2)
- (1)
- (1)
- (3)
- (1)
- (2)
- (2)
- (1)
- (5)
- (3)
- (3)
- (5)
- (3)
- (2)
- (2)
- (1)
- (2)
- (3)
- (1)
- (1)
- (2)
- (2)
- (3)
- (2)
- (2)
- (1)
- (9)
- (2)
- (1)
- (1)
- (2)
- (1)
- (2)
- (1)
- (2)
- (4)
- (1)
- (2)
- (2)
- (1)
- (8)
- (2)
- (2)
- (2)
- (1)
- (3)
- (1)
- (1)
- (2)
- (2)
- (2)
- (5)
- (3)
- (1)
- (20)
- (4)
- (2)
- (2)
- (2)
- (1)
- (1)
- (1)
- (4)
- (1)
- (1)
- (1)
- (3)
- (1)
- (2)
- (1)
- (2)
- (1)
- (1)
- (2)
- (2)
- (2)
- (2)
- (1)
- (1)
- (1)
- (4)
- (3)
- (1)
- (3)
- (2)
- (5)
- (1)
- (2)
- (1)
- (4)
- (2)
- (2)
- (2)
- (2)
- (1)
- (2)
- (2)
- (2)
- (1)
- (1)
- (2)
- (2)
- (1)
- (1)
- (2)
- (2)
- (1)
- (1)
- (2)
- (3)
- (4)
- (2)
- (2)
- (1)
- (2)
- (2)
- (2)
- (3)
- (1)
- (2)
- (1)
- (1)
- (1)
- (1)
- (1)
- (1)
- (2)
- (1)
- (1)
- (3)
- (1)
- (2)
- (4)
- (2)
- (3)
- (3)
- (2)
- (2)
- (2)
- (2)
- (2)
- (4)
- (2)
- (2)
- (1)
- (1)
- (2)
- (2)
- (1)
- (2)
- (2)
- (1)
- (2)
- (1)
- (2)
- (1)
- (2)
- (1)
- (2)
- (1)
- (2)
- (1)
- (1)
- (3)
- (1)
- (2)
- (4)
- (1)
- (2)
- (2)
- (2)
- (1)
- (2)
- (1)
- (1)
- (2)
- (1)
- (1)
- (1)
- (2)
- (2)
- (1)
- (3)
- (2)
- (4)
- (1)
- (14)
- (2)
- (12)
- (1)
- (3)
- (11)
- (2)
- (1)
- (115)
- (4)
- (1)
- (4)
- (2)
- (61)
- (5)
- (1)
- (2)
- (120)
- (15)
- (16)
- (4)
- (2)
- (3)
- (17)
- (177)
- (12)
- (3)
- (1)
- (30)
- (1)
- (3)
- (3)
- (9)
- (1)
- (7)
- (3)
- (3)
- (3)
- (2)
- (2)
- (3)
- (1)
- (1)
- (8)
- (9)
- (1)
- (19)
- (4)
- (59)
- (5)
- (1)
- (21)
- (3)
- (140)
- (7)
- (125)
- (23)
- (31)
- (5)
- (1)
- (2)
- (6)
- (8)
- (1)
- (68)
- (2)
- (3)
- (6)
- (5)
- (2)
- (8)
- (2)
- (886)
- (1)
- (1)
- (2)
- (14)
- (2)
- (1)
- (6)
- (9)
- (2)
- (4)
- (3)
- (8)
- (3)
- (1)
- (1)
- (3)
- (12)
- (1)
- (5)
- (2)
- (4)
- (3)
- (10)
- (4)
- (3)
- (5)
- (2)
- (4)
- (7)
- (8)
- (1)
- (1)
- (1)
- (2)
- (3)
- (3)
- (6)
- (6)
- (3)
- (3)
- (3)
- (10)
- (2)
- (2)
- (6)
- (2)
- (1)
- (4)
- (5)
- (2)
- (4)
- (4)
- (2)
- (4)
- (5)
- (7)
- (5)
- (4)
- (2)
- (6)
- (3)
- (11)
- (12)
- (1)
- (5)
- (2)
- (5)
- (2)
- (10)
- (2)
- (1)
- (3)
- (2)
- (2)
- (2)
- (1)
- (3)
- (6)
- (3)
- (1)
- (2)
- (4)
- (3)
- (4)
- (2)
- (1)
- (2)
- (10)
- (3)
- (3)
- (2)
- (3)
- (2)
- (12)
- (1)
- (3)
- (7)
- (1)
- (1)
- (4)
- (3)
- (3)
- (2)
- (2)
- (4)
- (6)
- (2)
- (2)
- (5)
- (2)
- (3)
- (2)
- (1)
- (2)
- (4)
- (5)
- (4)
- (1)
- (4)
- (2)
- (2)
- (2)
- (8)
- (7)
- (2)
- (3)
- (2)
- (1)
- (7)
- (11)
- (3)
- (2)
- (1)
- (9)
- (2)
- (1)
- (2)
- (3)
- (2)
- (6)
- (2)
- (2)
- (2)
- (1)
- (4)
- (4)
- (10)
- (1)
- (2)
- (2)
- (3)
- (3)
- (3)
- (1)
- (2)
- (4)
- (3)
- (5)
- (3)
- (2)
- (7)
- (3)
- (2)
- (2)
- (2)
- (5)
- (2)
- (2)
- (3)
- (1)
- (7)
- (2)
- (4)
- (4)
- (1)
- (4)
- (5)
- (3)
- (6)
- (3)
- (2)
- (2)
- (3)
- (4)
- (3)
- (3)
- (2)
- (3)
- (2)
- (1)
- (3)
- (2)
- (2)
- (2)
- (3)
- (3)
- (4)
- (2)
- (1)
- (2)
- (1)
- (1)
- (1)
- (1)
- (1)
- (3)
- (5)
- (1)
- (2)
- (2)
- (2)
- (4)
- (2)
- (2)
- (2)
- (1)
- (5)
- (1)
- (8)
- (2)
- (2)
- (2)
- (2)
- (2)
- (3)
- (3)
- (4)
- (2)
- (3)
- (2)
- (3)
- (7)
- (5)
- (4)
- (2)
- (3)
- (2)
- (2)
- (7)
- (3)
- (1)
- (2)
- (3)
- (3)
- (1)
- (1)
- (1)
- (2)
- (1)
- (4)
- (2)
- (5)
- (2)
- (3)
- (4)
- (2)
- (3)
- (2)
- (1)
- (1)
- (2)
- (6)
- (3)
- (1)
- (1)
- (2)
- (2)
- (3)
- (3)
- (5)
- (3)
- (3)
- (4)
- (2)
- (2)
- (2)
- (2)
- (4)
- (4)
- (1)
- (6)
- (2)
- (2)
- (10)
- (2)
- (2)
- (2)
- (8)
- (2)
- (1)
- (11)
- (3)
- (2)
- (1)
- (1)
- (2)
- (2)
- (8)
- (2)
- (1)
- (3)
- (6)
- (1)
- (1)
- (2)
- (7)
- (3)
- (3)
- (3)
- (3)
- (3)
- (4)
- (4)
- (5)
- (2)
- (3)
- (3)
- (2)
Filtered Search Results
Medchemexpress LLC MEDCHEMEXPRESS LLC
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
5000357217 TRI AMINO-PEG3-AMIDE 50MG
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
Medchemexpress LLC MEDCHEMEXPRESS LLC
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
5000357012 BROMOACETAMIDO-PEG3- 500MG
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
![Medchemexpress LLC Hydroxylamine, O-[2-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]ethyl] | 1306615-51-9 | 95.0% | 234.25 g/mol | C8H18N4O4 | 100 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000202344.png-250.jpg)
Medchemexpress LLC Hydroxylamine, O-[2-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]ethyl] | 1306615-51-9 | 95.0% | 234.25 g/mol | C8H18N4O4 | 100 MG
Aminooxy-PEG3-azide is a PEG-based bifunctional linker containing an aminooxy (hydroxylamine) group and an azide group for orthogonal bioconjugation. It enables oxime formation with aldehydes or ketones and azide-alkyne click chemistry, and is supplied as a liquid at high purity for lab-scale synthesis.
- Contains aminooxy and azide functional groups for orthogonal conjugation
- Enables oxime ligation and azide-alkyne click reactions
- Suitable for ADC, PROTAC, and general bioconjugation workflows
- Supplied as a liquid with high laboratory-grade purity
- Available in small-scale pack sizes for research use
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
![Medchemexpress LLC Hydroxylamine, o-[2-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]ethyl]- | 1306615-51-9 | 95.0% | 234.25 | C8H18N4O4 | 25 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000202345.png-250.jpg)
Medchemexpress LLC Hydroxylamine, o-[2-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]ethyl]- | 1306615-51-9 | 95.0% | 234.25 | C8H18N4O4 | 25 MG
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
Aminooxy-PEG3-azide is a bifunctional PEG-based linker bearing an aminooxy group and an azide group, suitable for conjugation chemistry. It serves as a non-cleavable three-unit PEG spacer for synthesis of antibody-drug conjugates and PROTACs, and enables click chemistry reactions such as CuAAC and SPAAC.
- Used as a non-cleavable three-unit PEG linker for conjugation chemistry
- Contains aminooxy and azide functional groups for orthogonal conjugation
- Compatible with CuAAC and SPAAC click reactions
- Molecular weight 234.25 and formula C8H18N4O4
- Typical purity 95.0% (NMR)
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
Medchemexpress LLC Tr-PEG3-OH | 133699-09-9 | MFCD22574815 | 99.6% | 392.49 g/mol | C25H28O4 | 1 G
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
Tr-PEG3-OH is a non-cleavable three-unit polyethylene glycol (PEG) linker used in the synthesis of antibody-drug conjugates (ADCs) and PROTACs. It acts as a short, hydrophilic spacer to improve payload solubility and control spacing between payload and antibody or ligand, supporting efficient conjugation chemistry.
- Non-cleavable three-unit PEG linker suitable for ADC and PROTAC synthesis.
- Provides a short, hydrophilic spacer to improve solubility and reduce aggregation.
- High purity for consistent conjugation performance.
- Compatible with standard organic synthesis and conjugation workflows.
- Available in small research quantities for laboratory use.
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
Medchemexpress LLC Bis-PEG3-NHS ester | 1314378-16-9 | MFCD20227484 | 97.0% | 444.39 g·mol⁻¹ | C18H24N2O11 | 100 MG
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
Bis-PEG3-NHS ester is a noncleavable, three-unit polyethylene glycol (PEG) linker bearing two N-hydroxysuccinimide (NHS) ester termini for amine coupling. It is intended for antibody-agent conjugation and related bioconjugation chemistries, enabling formation of stable amide bonds to primary amines on proteins or small molecules.
- Noncleavable three-unit PEG spacer suitable for antibody-agent conjugation and bioconjugation.
- Two NHS ester reactive termini for efficient amine coupling to primary amines.
- White to off-white solid, convenient for bench handling.
- High purity (97.0%) with CAS 1314378-16-9 and formula C18H24N2O11.
- Storage: powder at -20°C (stable up to 3 years); in solvent at -80°C (6 months) or -20°C (1 month).
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
Medchemexpress LLC Pc biotin-PEG3-azide | 1937270-46-6 | 97.8% | 825.93 g/mol | C35H55N9O12S | 10 MG
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
PC Biotin-PEG3-azide is a cleavable three-unit polyethylene glycol (PEG3) biotinylated azide linker used for bioconjugation and the synthesis of antibody-drug conjugates. It contains an azide functional group for click chemistry and reacts in copper-catalyzed azide-alkyne cycloaddition (CuAAC) and strain-promoted alkyne-azide cycloaddition (SPAAC) reactions.
- Cleavable three-unit PEG linker.
- Contains an azide functional group for click chemistry.
- Suits copper-catalyzed and strain-promoted azide-alkyne cycloadditions.
- High research-grade purity.
- Available in small-scale quantities for conjugation workflows.
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
Medchemexpress LLC N3-peg3-ch2ch2-boc | 252881-73-5 | MFCD22201543 | ≥98.0% | 303.35 g/mol | C13H25N3O5 | 1 G
N3-PEG3-CH2CH2-Boc is an azide-functionalized, Boc-protected PEG3 cleavable linker used for bioconjugation and click chemistry applications such as ADC and PROTAC synthesis.
- Azide functional group enables CuAAC and SPAAC click reactions.
- Boc-protected terminus allows orthogonal deprotection strategies.
- Three-unit PEG spacer improves solubility and flexibility in conjugates.
- High purity suitable for synthesis and analytical workflows.
- Available in multiple packaging sizes for lab-scale use.
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
eMolecules Ambeed / tert-Butyl 3-(2-(2-(2-aminoethoxy)ethoxy)ethoxy)propanoate / 100mg / 506388578 / A154148 / / 252881-74-6 / MFCD06201017 / 277.361 / C13H27NO5
Ambeed / tert-Butyl 3-(2-(2-(2-aminoethoxy)ethoxy)ethoxy)propanoate / 100mg / 506388578 / A154148 / / 252881-74-6 / MFCD06201017 / 277.361 / C13H27NO5
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
eMolecules 4-(Bromodifluoromethyl)-1-(difluoromethyl)benzene | 2250-36-4 | MFCD03094540 | 250mg
Oakwood Chemical | 4-(Bromodifluoromethyl)-1-(difluoromethyl)benzene | 250mg | 537671596 | 010249 | | 2250-36-4 | MFCD03094540 | 257.026 | C8H5BrF4
If you are unable to find the chemical you are looking for, make sure you are logged into your fishersci.com account and click on the following link:
eMolecules Building Block Tool
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
Medchemexpress LLC Tert-butyl 3-(2-(2-(2-azidoethoxy)ethoxy)ethoxy)propanoate | 252881-73-5 | 303.3547 g/mol | C13H25N3O5 | 50 MG
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
N3-PEG3-CH2CH2-Boc is an azido-terminated PEG3 linker with a tert-butyl (Boc) protected carboxylic acid end, used as a cleavable PEG-based linker in antibody-drug conjugate and PROTAC synthesis, and as an azide reagent for click chemistry.
- Azide-terminated PEG3 linker suitable for click chemistry.
- tert-Butyl (Boc) protected carboxyl end for orthogonal deprotection.
- Used in ADC and PROTAC linker assembly.
- Available as a small pre-weighed laboratory pack for synthetic use.
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
Medchemexpress LLC 4,7,10,13-tetraoxatetradecanoic acid | 67319-28-2 | 97.0% | 236.26 | C10H20O6 | 1 G
m-PEG3-CH2CH2COOH is a monomethyl-terminated PEG3 linker bearing a terminal carboxylic acid, used as a non-cleavable linker in antibody-drug conjugate and PROTAC synthesis. It is supplied as a colorless to light yellow liquid with a high NMR purity and defined molecular properties.
- Monomethyl-terminated PEG3 linker
- Terminal carboxylic acid functionality for conjugation
- Suitable for ADC and PROTAC synthesis
- Colorless to light yellow liquid form
- 97.0% purity (NMR)
- Molecular weight 236.26; formula C10H20O6
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
Medchemexpress LLC Mal-PEG3-NH2 TFA | 2830214-77-0 | 99.1% | 386.32 g·mol⁻¹ | C14H21F3N2O7 | 10 MG
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
Mal-PEG3-NH2 TFA is a linear heterobifunctional polyethylene glycol crosslinker supplied as the trifluoroacetic acid (TFA) salt. It contains a maleimide group at one end and a primary amine at the other, enabling selective conjugation to thiols and amines. It is provided as a non-degradable (non-cleavable) linker commonly used in PROTAC and ADC linker design and general bioconjugation.
- Maleimide and primary amine functional groups for thiol and amine conjugation.
- Non-degradable, non-cleavable linker suitable for PROTAC and ADC applications.
- High reported purity of 99.07%.
- Molecular weight 386.32 g·mol⁻¹.
- Available in multiple sizes including 5 mg, 10 mg, 25 mg, 50 mg, 100 mg, 200 mg.
- Supplied as the trifluoroacetic acid (TFA) salt.
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
Medchemexpress LLC MEDCHEMEXPRESS LLC
Small and Specialty Supplier Partner
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
Small and/or specialty supplier based on Federal laws and SBA requirements.
Learn More
5000354997 BOC-NH-PEG3-PROPARGY 100MG
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More
Medchemexpress LLC (E)-Cyclooct-2-en-1-yl (2-(2-(2-(2-aminoethoxy)ethoxy)ethoxy)ethyl)carbamate | 98.4% | 344.45 | C17H32N2O5 | 10 MG
TCO-PEG3-NH2 is a click-chemistry reagent composed of a trans-cyclooctene (TCO) group linked to a three-unit polyethylene glycol spacer terminating in a primary amine. It enables fast bioorthogonal inverse-electron-demand Diels-Alder (iEDDA) reactions with tetrazine-functionalized partners and amine-mediated conjugation for site-specific labeling of biomolecules.
- Enables rapid iEDDA bioorthogonal chemistry for fast conjugation.
- Terminal primary amine allows amide bond formation with carboxyl groups.
- Three-unit PEG spacer improves aqueous solubility and reduces steric hindrance.
- Suitable for site-specific labeling and bioconjugation workflows.
- Typically supplied as a small solid quantity for laboratory use.
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
Learn More