Biotin and derivatives
Chemscene ChemScene | Azido-PEG11-amine | 100MG | CS-0114594 | 0.95 | 1800414-71-4| MFCD08274605 | 570.67
ChemScene | Azido-PEG11-amine | 100MG | CS-0114594 | 0.95 | 1800414-71-4| MFCD08274605 | 570.67
Medchemexpress LLC BHQ-1 NHS | 916753-61-2 | C30H31N7O7 | 5 MG
BHQ-1 NHS is a fluorescent dye used for research purposes. It is directly labeled by fluorescently labeled nucleotide and is not intended for patient use.
- Fluorescent dye
- Purity 96.65%
- Solid appearance
- Brown to black color
- Molecular weight 601.61
- Used in cell staining analysis
- Used in cell function analysis
- Applicable in nucleic acid dyes
Medchemexpress LLC Cyclooctyne-O-NHS ester | 1425803-45-7 | 95.0% | 279.29 g/mol | C14H17NO5 | 25 MG
Cyclooctyne-O-NHS ester is an NHS-activated cyclooctyne reagent used for bioconjugation and antibody-drug conjugate synthesis. It couples to primary amines to form stable amide bonds and participates in strain-promoted azide-alkyne cycloaddition (click chemistry) workflows.
- N-hydroxysuccinimide (NHS) activated ester for efficient amide coupling.
- Strained cyclooctyne enables copper-free click reactions with azides.
- Molecular formula C14H17NO5 and molecular weight 279.29 g/mol.
- High purity for research use (95.0%).
- White to off-white solid; store at -20°C under nitrogen.
Medchemexpress LLC Azido-PEG3-O-NHS ester | 2110448-98-9 | C13H20N4O8 | 25 MG
Azido-PEG3-O-NHS ester | 2110448-98-9 | C13H20N4O8 | 25 MG
Medchemexpress LLC DOTA-NHS-ester | 170908-81-3 | MFCD23381190 | >97.0% | 501.49 g/mol | C20H31N5O10 | 50 MG
DOTA-NHS-ester is an activated N-hydroxysuccinimide (NHS) ester of the DOTA chelator used to conjugate DOTA to amine-containing molecules for radiolabeling and imaging applications. It is intended for research use and is typically used to prepare peptide or antibody conjugates for small-animal PET, SPECT, and CT studies.
- Activated NHS-ester for amine conjugation.
- Used to prepare conjugates for PET, SPECT, and CT imaging.
- Suitable for labeling radiotherapeutic agents and imaging probes.
- Molecular weight approximately 501.49 g/mol.
- Stored sealed and away from moisture; in solvent: -80°C for 6 months, -20°C for 1 month.
Medchemexpress LLC Bis-PEG6-NHS ester | 1526718-98-8 | 98.0% | 576.55 g/mol | C24H36N2O14 | 50 MG
Bis-PEG6-NHS ester is a PEG-based bifunctional linker bearing two N-hydroxysuccinimide (NHS) ester termini separated by a six-unit polyethylene glycol spacer. It is used to conjugate amine-containing ligands in the synthesis of PROTACs and as a cleavable linker for antibody-drug conjugates (ADCs).
- High purity (98.0%).
- Two NHS ester termini for efficient amine coupling.
- PEG6 spacer provides aqueous solubility and conformational flexibility.
- Suitable as a cleavable linker in ADC construction and for PROTAC linker design.
- Store sealed at -20 °C, away from moisture; unstable in solution, prepare fresh as needed.
eMolecules 1353016-71-3 | DBCO-NHS ester | Knight Chemicals, Inc. | MFCD24386367 | 402.406 | C23H18N2O5 | 99.000 | O=C(CCC(=O)N1Cc2ccccc2C#Cc2ccccc12)ON1C(=O)CCC1=O | 5g | 894265339
DBCO-NHS ester | Knight Chemicals, Inc. | 1353016-71-3 | MFCD24386367 | 402.406 | C23H18N2O5 | 99.000 | O=C(CCC(=O)N1Cc2ccccc2C#Cc2ccccc12)ON1C(=O)CCC1=O | 5g | 894265339
eMolecules 1353016-71-3 | DBCO-NHS ester | Knight Chemicals, Inc. | MFCD24386367 | 402.406 | C23H18N2O5 | 99.000 | O=C(CCC(=O)N1Cc2ccccc2C#Cc2ccccc12)ON1C(=O)CCC1=O | 1g | 894265338
DBCO-NHS ester | Knight Chemicals, Inc. | 1353016-71-3 | MFCD24386367 | 402.406 | C23H18N2O5 | 99.000 | O=C(CCC(=O)N1Cc2ccccc2C#Cc2ccccc12)ON1C(=O)CCC1=O | 1g | 894265338
Medchemexpress LLC Biotin-Gastrin Releasing Peptide, human TFA | 3085.67 | 10 MG
Biotin-Gastrin Releasing Peptide, human TFA is a biotinylated gastrin releasing peptide (GRP). Gastrin-releasing peptide (GRP) is a neuropeptide with growth-stimulatory and tumorigenic properties.
- Molecular weight: 3085.67
- Chemical formula: C140H218N40O33S3.xC2HF3O2
- Appearance: Solid
- Soluble in DMSO at 100 mg/mL
- Shipping: Room temperature
- Storage (powder): -80°C for 2 years, -20°C for 1 year
- Storage (in solvent): -80°C for 6 months, -20°C for 1 month
eMolecules 1807518-72-4 | Mal-PEG1-NHS ester | Medchem Express | MFCD26127783 | 310.262 | C13H14N2O7 | 98.000 | O=C(CCOCCN1C(=O)C=CC1=O)ON1C(=O)CCC1=O | 10mg | 795391586
Mal-PEG1-NHS ester | Medchem Express | 1807518-72-4 | MFCD26127783 | 310.262 | C13H14N2O7 | 98.000 | O=C(CCOCCN1C(=O)C=CC1=O)ON1C(=O)CCC1=O | 10mg | 795391586
eMolecules 1807518-72-4 | Mal-PEG1-NHS ester | Medchem Express | MFCD26127783 | 310.262 | C13H14N2O7 | 98.000 | O=C(CCOCCN1C(=O)C=CC1=O)ON1C(=O)CCC1=O | 250mg | 527575115
Mal-PEG1-NHS ester | Medchem Express | 1807518-72-4 | MFCD26127783 | 310.262 | C13H14N2O7 | 98.000 | O=C(CCOCCN1C(=O)C=CC1=O)ON1C(=O)CCC1=O | 250mg | 527575115
Medchemexpress LLC Bis-PEG25-NHS ester | 2221948-96-3 | 99.8% | 1413.55 g/mol | C62H112N2O33 | 250 MG
Bis-PEG25-NHS ester is a homobifunctional polyethylene glycol (PEG) linker bearing two N-hydroxysuccinimide (NHS) ester groups, used for amine-directed bioconjugation in PROTAC and ADC synthesis. It provides a hydrophilic spacer to improve solubility and facilitates cleavable linker chemistry.
- High purity (99.8%).
- Homobifunctional PEG linker with two NHS ester groups.
- Molecular weight 1413.55 g/mol and formula C62H112N2O33.
- Suitable for PROTAC and ADC linker chemistry and general amine-directed conjugation.
- Available in multiple pack sizes including 25 mg, 50 mg, 100 mg, 250 mg, 500 mg, and 1 g.
- Store sealed, away from moisture at -20°C; in solvent store at -80°C (up to 6 months) or -20°C (up to 1 month).