Organo-Metalloid Compounds
- (1)
- (19)
- (146)
- (2)
- (10)
- (1)
- (1)
- (28)
- (21)
- (4)
- (62)
- (96)
- (14)
- (1)
- (1)
- (1)
- (1)
- (5)
- (2)
- (1)
- (3)
- (207)
- (153)
- (3)
- (25)
- (23)
- (13)
- (1)
- (3)
- (1)
- (1)
- (1)
- (1)
- (253)
- (85)
- (2)
- (1)
- (20)
- (8)
- (12)
- (30)
- (54)
- (3)
- (10)
- (1)
- (8)
- (2)
- (2)
- (8)
- (4)
- (2)
- (21)
- (2)
- (2)
- (3)
- (1)
- (5)
- (4)
- (4)
- (2)
- (1)
- (3)
- (2)
- (1)
- (5)
- (2)
- (3)
- (2)
- (2)
- (1)
- (5)
- (4)
- (1)
- (1)
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- (2)
- (2)
- (2)
- (5)
- (3)
- (3)
- (2)
- (1)
- (18)
- (3)
- (1)
- (2)
- (4)
- (3)
- (5)
- (1)
- (2)
- (2)
- (2)
- (4)
- (4)
- (1)
- (2)
- (5)
- (6)
- (2)
- (2)
- (4)
- (2)
- (3)
- (4)
- (4)
- (4)
- (3)
- (2)
- (2)
- (2)
- (1)
- (2)
- (1)
- (9)
- (3)
- (4)
- (2)
- (1)
- (1)
- (7)
- (3)
- (5)
- (9)
- (1)
- (3)
- (4)
- (1)
- (8)
- (4)
- (1)
- (4)
- (1)
- (8)
- (1)
- (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)
- (2)
- (1)
- (2)
- (2)
- (5)
- (2)
- (2)
- (1)
- (2)
- (1)
- (1)
- (6)
- (6)
- (1)
- (1)
- (2)
- (5)
- (1)
- (1)
- (1)
- (4)
- (1)
- (4)
- (10)
- (2)
- (4)
- (1)
- (3)
- (6)
- (1)
- (1)
- (2)
- (1)
- (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)
- (4)
- (1)
- (2)
- (2)
- (3)
- (1)
- (3)
- (8)
- (6)
- (1)
- (3)
- (9)
- (2)
- (2)
- (1)
- (1)
- (3)
- (1)
- (2)
- (1)
- (2)
- (3)
- (2)
- (1)
- (2)
- (1)
- (1)
- (3)
- (6)
- (5)
- (3)
- (1)
- (10)
- (2)
- (5)
- (1)
- (3)
- (2)
- (1)
- (2)
- (2)
- (2)
- (2)
- (1)
- (1)
- (2)
- (2)
- (8)
- (1)
- (2)
- (1)
- (3)
- (2)
- (1)
- (1)
- (7)
- (3)
- (2)
- (2)
- (1)
- (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)
- (5)
- (2)
- (2)
- (1)
- (2)
- (1)
- (11)
- (2)
- (1)
- (1)
- (2)
- (2)
- (5)
- (2)
- (4)
- (1)
- (1)
- (3)
- (1)
- (2)
- (1)
- (2)
- (1)
- (3)
- (1)
- (1)
- (1)
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- (1)
- (1)
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- (1)
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- (1)
- (5)
- (3)
- (3)
- (5)
- (3)
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- (2)
- (1)
- (2)
- (3)
- (1)
- (1)
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- (3)
- (2)
- (2)
- (1)
- (9)
- (2)
- (1)
- (1)
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- (1)
- (2)
- (1)
- (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)
- (4)
- (1)
- (1)
- (1)
- (3)
- (1)
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- (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)
- (2)
- (2)
- (1)
- (1)
- (2)
- (2)
- (1)
- (1)
- (2)
- (1)
- (3)
- (4)
- (2)
- (2)
- (1)
- (2)
- (2)
- (2)
- (3)
- (1)
- (2)
- (1)
- (1)
- (1)
- (1)
- (1)
- (1)
- (2)
- (1)
- (1)
- (3)
- (1)
- (1)
- (2)
- (4)
- (2)
- (3)
- (3)
- (2)
- (2)
- (2)
- (2)
- (2)
- (4)
- (2)
- (2)
- (1)
- (1)
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- (1)
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- (2)
- (1)
- (1)
- (3)
- (1)
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- (4)
- (1)
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- (2)
- (1)
- (2)
- (1)
- (1)
- (2)
- (1)
- (1)
- (1)
- (3)
- (2)
- (4)
- (1)
- (14)
- (2)
- (12)
- (1)
- (3)
- (11)
- (2)
- (1)
- (115)
- (4)
- (1)
- (5)
- (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)
- (7)
- (9)
- (19)
- (4)
- (62)
- (5)
- (1)
- (21)
- (3)
- (137)
- (6)
- (125)
- (22)
- (33)
- (5)
- (1)
- (2)
- (6)
- (8)
- (68)
- (2)
- (3)
- (6)
- (5)
- (2)
- (8)
- (2)
- (877)
- (1)
- (1)
- (2)
- (14)
- (2)
- (1)
- (6)
- (8)
- (2)
- (4)
- (3)
- (8)
- (3)
- (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)
- (1)
- (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)
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- (2)
- (2)
- (8)
- (7)
- (2)
- (3)
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- (1)
- (7)
- (11)
- (3)
- (2)
- (1)
- (9)
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- (10)
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Filtered Search Results
Medchemexpress LLC MEDCHEMEXPRESS LLC
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5000744490 BIS-AMINOOXY-PEG3 250MG
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Medchemexpress LLC MEDCHEMEXPRESS LLC
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5000758275 NH2-PEG3 HYDROCHLOR 250MG
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Medchemexpress LLC 4,7,10-trioxa-3-siladodecan-12-ol, 2,2,3,3-tetramethyl- | 201037-95-8 | MFCD30471718 | ≥98.0% | 264.43 g/mol | C12H28O4Si | 10 G
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TBDMS-PEG3-OH is a polyethylene glycol (PEG) derivative used in chemical and pharmaceutical research, commonly as a linker or modifier in drug-delivery constructs and PROTAC synthesis. It is supplied as a colorless to light-yellow liquid and is typically provided at research-grade purity.
- Has a molecular weight of 264.43 g/mol.
- Chemical formula C12H28O4Si.
- CAS number 201037-95-8.
- Purity ≥98.0%.
- Supplied as a colorless to light-yellow liquid.
- Typical pack size 10 g.
- Useful as a PEG linker or modifier in drug-delivery and PROTAC synthesis.
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eMolecules 867062-95-1 | Fmoc-NH-PEG3-CH2CH2COOH | ChemScene | MFCD06656471 | 443.496 | C24H29NO7 | 96.000 | OC(=O)CCOCCOCCOCCNC(=O)OCC1c2ccccc2-c2ccccc12 | 1g | 486162535
Fmoc-NH-PEG3-CH2CH2COOH | ChemScene | 867062-95-1 | MFCD06656471 | 443.496 | C24H29NO7 | 96.000 | OC(=O)CCOCCOCCOCCNC(=O)OCC1c2ccccc2-c2ccccc12 | 1g | 486162535
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Medchemexpress LLC Bis-PEG3-NHS ester | 1314378-16-9 | 97.0% | 444.39 g/mol | C18H24N2O11 | 500 MG
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Bis-PEG3-NHS ester is a non-cleavable PEG-based bifunctional linker containing two N-hydroxysuccinimide (NHS) ester reactive groups used for bioconjugation and antibody-drug conjugate (ADC) construction. The three-unit PEG spacer increases hydrophilicity and solubility, while the NHS esters enable efficient coupling to primary amines on proteins and peptides.
- Non-cleavable 3-unit PEG linker for stable conjugation.
- Contains two NHS ester groups for bioconjugation to primary amines.
- Improves solubility and hydrophilicity of conjugates.
- Available in multiple package sizes, including 500 mg.
- Provided with SDS, COA, and product data sheet for quality and safety information.
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Medchemexpress LLC Calcein tetraethyl ester | 1170856-93-5 | MFCD14586332 | 99.5% | 734.75 | C38H42N2O13 | 10 MG
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Calcein (tetraethyl ester) is a membrane-permeant fluorescent dye used to label live cells in viability assays, cell tracing, and fluorescence microscopy. The esterified form crosses cell membranes and is hydrolyzed intracellularly to fluorescent calcein, producing strong green fluorescence for imaging and quantitative measurements.
- Membrane-permeant fluorescent dye for live-cell labeling
- Intracellular conversion yields bright green fluorescence
- High purity suitable for research use (99.5%)
- Molecular weight 734.75 g/mol
- CAS number 1170856-93-5 for identification
- Available in small quantities for laboratory assays
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Medchemexpress LLC Bis-PEG3-NHS ester | 1314378-16-9 | 97.0% | 444.39 g·mol-1 | C18H24N2O11 | 250 MG
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Bis-PEG3-NHS ester is a noncleavable, three-unit polyethylene glycol (PEG) linker bearing N-hydroxysuccinimide (NHS) ester termini for amine-directed bioconjugation and antibody-agent conjugation applications.
- Provides two NHS ester termini for efficient amine coupling.
- Three-unit PEG spacer increases hydrophilicity and reduces steric hindrance.
- Noncleavable design yields stable conjugation in antibody-drug conjugate constructs.
- High purity suitable for research applications.
- Stable as a powder at -20°C for long-term storage; limited stability in solution.
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eMolecules 77544-68-4 | Tos-PEG3 | Medchem Express | MFCD18433414 | 304.360 | C13H20O6S | 98.000 | Cc1ccc(cc1)S(=O)(=O)OCCOCCOCCO | 100mg | 515744325
Tos-PEG3 | Medchem Express | 77544-68-4 | MFCD18433414 | 304.360 | C13H20O6S | 98.000 | Cc1ccc(cc1)S(=O)(=O)OCCOCCOCCO | 100mg | 515744325
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Medchemexpress LLC N-(Azido-PEG3)-N-(PEG2-NH-Boc)-PEG3-acid | 2183440-74-4 | 98.1% | C29H55N5O13 | 100 MG
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N-(Azido-PEG3)-N-(PEG2-NH-Boc)-PEG3-acid is a PEG-based PROTAC linker that can be utilized in the synthesis of PROTACs. It also functions as a click chemistry reagent, enabling copper-catalyzed azide-alkyne cycloaddition (CuAAc) and strain-promoted alkyne-azide cycloaddition (SPAAC) reactions.
- PEG-based PROTAC linker for PROTAC synthesis
- Functions as a click chemistry reagent
- Azide group facilitates copper-catalyzed azide-alkyne cycloaddition (CuAAc)
- Participates in strain-promoted alkyne-azide cycloaddition (SPAAC) with DBCO or BCN groups
- PROTACs leverage the ubiquitin-proteasome system for selective protein degradation
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eMolecules 31127-85-2 | HOOCCH2CH2O-PEG3-CH2CH2COOH | Acrotein ChemBio Inc. | MFCD22201545 | 294.300 | C12H22O8 | 97.000 | OC(=O)CCOCCOCCOCCOCCC(O)=O | 1g | 487537378
HOOCCH2CH2O-PEG3-CH2CH2COOH | Acrotein ChemBio Inc. | 31127-85-2 | MFCD22201545 | 294.300 | C12H22O8 | 97.000 | OC(=O)CCOCCOCCOCCOCCC(O)=O | 1g | 487537378
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Medchemexpress LLC Ms-PEG5-t-butyl ester | 870487-48-2 | C16H32O9S | 50 MG
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Ms-PEG5-t-butyl ester is a PEG-based PROTAC linker primarily used in the synthesis of PROTACs.
- PROTACs contain two different ligands connected by a linker.
- One ligand is for an E3 ubiquitin ligase, and the other is for the target protein.
- PROTACs exploit the intracellular ubiquitin-proteasome system.
- Used to selectively degrade target proteins.
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Medchemexpress LLC 4,7,10-trioxa-3-siladodecan-12-ol, 2,2,3,3-tetramethyl- | 201037-95-8 | >=98.0% | 264.43 g/mol | C12H28O4Si | 1 G
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Small and/or specialty supplier based on Federal laws and SBA requirements.
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TBDMS-PEG3-OH is a tert-butyldimethylsilyl-protected PEG3 linker with a terminal hydroxyl group. It is supplied as a colorless to light yellow liquid and is used as a short, flexible spacer in medicinal chemistry, linker synthesis, and drug-delivery research.
- tert-butyldimethylsilyl-protected terminal hydroxyl
- three ethylene glycol units (PEG3)
- molecular weight 264.43 g/mol
- chemical formula C12H28O4Si
- CAS number 201037-95-8
- purity >=98.0% (1H NMR)
- appearance colorless to light yellow liquid
- storage: pure form -20°C for 3 years; 4°C for 2 years
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![eMolecules 546-68-9 | Tetraisopropyl orthotitanate | Chem-Impex | MFCD00008871 | 284.219 | C12H28O4Ti | 27.000 | [Ti+4].CC(C)[O-].CC(C)[O-].CC(C)[O-].CC(C)[O-] | 1kg | 686070057](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000126441.jpg-250.jpg)
eMolecules 546-68-9 | Tetraisopropyl orthotitanate | Chem-Impex | MFCD00008871 | 284.219 | C12H28O4Ti | 27.000 | [Ti+4].CC(C)[O-].CC(C)[O-].CC(C)[O-].CC(C)[O-] | 1kg | 686070057
Tetraisopropyl orthotitanate | Chem-Impex | 546-68-9 | MFCD00008871 | 284.219 | C12H28O4Ti | 27.000 | [Ti+4].CC(C)[O-].CC(C)[O-].CC(C)[O-].CC(C)[O-] | 1kg | 686070057
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Medchemexpress LLC N-(Aminooxy-PEG3)-N-bis(PEG4-Boc) | 2112737-19-4 | > 96% | C38H76N2O16 | 100 MG
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Small and/or specialty supplier based on Federal laws and SBA requirements.
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N-(Aminooxy-PEG3)-N-bis(PEG4-Boc) is a PEG-based PROTAC linker that can be utilized in the synthesis of PROTACs. PROTACs consist of two distinct ligands connected by a linker, with one ligand targeting an E3 ubiquitin ligase and the other targeting a specific protein. These molecules function by exploiting the intracellular ubiquitin-proteasome system to selectively degrade target proteins. This product is for research use only and not sold to patients.
- Peg-based PROTAC linker
- Utilized in the synthesis of PROTACs
- Exploits the intracellular ubiquitin-proteasome system
- Selectively degrades target proteins
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
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Medchemexpress LLC N-(Amino-PEG3)-N-bis(PEG4-Boc) | 2353409-57-9 | MFCD29267156 | >98% | C38H77NO17 | 50 MG
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Small and/or specialty supplier based on Federal laws and SBA requirements.
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N-(Amino-PEG3)-N-bis(PEG4-Boc) is a building block and PEG linker used to synthesize various PEG-based linkers. It can easily react with activated NHS esters or carboxylic acid in the presence of EDC or HATU. The t-butyl group can be deprotected under acidic conditions, and it is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.
- Easily reacts with activated NHS esters or carboxylic acid in the presence of EDC or HATU.
- t-butyl group can be deprotected under acidic conditions.
- Functions as a PEG-based PROTAC linker.
Non-distribution item offered as a customer accommodation; additional freight charges may apply.
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