Biotin and derivatives
Medchemexpress LLC Sulfo-TAG NHS ester disodium | 482618-42-8 | C43H39N7Na2O16RuS4 | 5 MG
Sulfo-TAG NHS ester disodium is an N-hydroxysuccinimide ester that can be coupled to proteins via primary amine groups. It can be used for antibody labeling.
- Couples to proteins via primary amine groups
- Used for antibody labeling
- Compatible with lyophilized and solution antibodies
- Can be used with protein quantification methods
- Antibody labeling performed at room temperature in the dark
- Labeling ratio can be determined spectrophotometrically
Medchemexpress LLC Cyanine5.5 NHS ester (tetrafluoroborate) | 2375105-86-3 | 98.4% | 767.66 | 25 MG
Cyanine5.5 NHS ester tetrafluoroborate belongs to the cyanine dye series and is a common fluorescent marker for biomolecules that can interact with biomolecules. Cyanine dyes may also bind to double-helical DNA through intercalation and exhibit enhanced fluorescence upon binding.
- Belongs to the cyanine dye series
- Common fluorescent marker for biomolecules
- Interacts with biomolecules
- Binds to double-helical DNA through intercalation
- Exhibits enhanced fluorescence upon binding
- For research use only
- Powder can be stored at -20°C for 3 years
- In solvent, store at -80°C for 6 months or -20°C for 1 month
- Soluble in DMSO at 50 mg/mL (65.13 mM)
Medchemexpress LLC Biotin-C5-azide (decarboxybiotin-n3) | 1260586-88-6 | C10H17N5OS | 5 MG
Biotin-C5-Azide (DecarboxyBiotin-N3) is a biotin reagent utilized for preparing biotinylated conjugates. It operates as a click chemistry reagent, incorporating an azide group. This group enables its participation in copper-catalyzed azide-alkyne cycloaddition (CuAAc) reactions with alkyne-containing molecules, and strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
- Biotin reagent
- Can be used to prepare biotinylated conjugates
- Click chemistry reagent
- Contains an azide group for CuAAc and SPAAC reactions
Medchemexpress LLC Norbornene-NHS | 1888335-48-5 | C12H13NO5 | 50 MG
Norbornene-NHS is a click chemistry reagent and a dienophile for conjugation via copper-free Click reaction with tetrazines. It is for research use only and not sold to patients.
- Purity: 92.08%
- Molecular weight: 251.24
- Appearance: Liquid
- Color: Light yellow to yellow
- Used for conjugation via copper-free click reaction
![eMolecules 58-85-5 | D-Biotin | Ochem Incorporation | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 773150948](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000482342.jpg-250.jpg)
eMolecules 58-85-5 | D-Biotin | Ochem Incorporation | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 773150948
D-Biotin | Ochem Incorporation | 58-85-5 | MFCD00005541 | 244.310 | C10H16N2O3S | 98.000 | OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 773150948
eMolecules 2207596-93-6 | M-DPEG12-NHS ESTER | AstaTech | MFCD13184970 | 685.761 | C30H55NO16 | 95.000 | COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCC(=O)ON1C(=O)CCC1=O | 1g | 441565002
M-DPEG12-NHS ESTER | AstaTech | 2207596-93-6 | MFCD13184970 | 685.761 | C30H55NO16 | 95.000 | COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCC(=O)ON1C(=O)CCC1=O | 1g | 441565002
Medchemexpress LLC Biotin-PEG3-acid 250mg | 252881-76-8 | 447.55 g·mol⁻¹ | C19H33N3O7S | 250 MG
Biotin-PEG3-acid is a biotin-labeled PEG3 linker with a terminal carboxylic acid, supplied as a solid for use in conjugation and PROTAC linker synthesis. It provides a hydrophilic spacer arm to attach biotin to small molecules or probes, enabling affinity capture, purification, and detection workflows.
- Biotin-labeled PEG3 linker with carboxylic acid terminus.
- Suitable for coupling chemistries such as amide bond formation.
- Used in PROTAC synthesis, biotinylation, pull-downs, and detection assays.
- Molecular weight 447.55 g·mol⁻¹ and CAS 252881-76-8.
- Purity 98.0%.
- Supplied as a 250 MG solid; other sizes available.
Medchemexpress LLC Sulfo-TAG NHS ester disodium | 482618-42-8 | C43H39N7Na2O16RuS4 | 1 MG
Sulfo-TAG NHS ester disodium is an N-hydroxysuccinimide ester designed for coupling to proteins via primary amine groups. It is effectively utilized for antibody labeling applications.
- N-hydroxysuccinimide ester
- Couples to proteins via primary amine groups
- Used for antibody labeling
- Soluble in DMSO and H2O
Biotium Dyes For Labeling Carbonyls and Carbohydrates Fluorescence Microscopy Cell and Organelle Stains Cell Surface and Membrane Dyes 1/EA
Label live cell surface glycoproteins with biotin for fixable plasma membrane staining or protein extraction GlycoLiner uses novel reactive chemistry for faster more efficient and gentler labeling compared to conventional methods Label 500 wells (200 uL) or ten T75 flasks (10 mL)
Medchemexpress LLC Nhs-peg1-ss-peg1-nhs | 1688598-83-5 | MFCD32644554 | 98.0% | 436.41 | 100 MG
NHS-PEG1-SS-PEG1-NHS is a reversible linker designed for conjugating biomacromolecules with active small molecules. It is suitable for applications involving proteins, liposomes, or nanoparticles, and is intended for research use only.
- Reversible linker for biomacromolecule conjugation
- Can be used with active small molecules
- Applicable in proteins, liposomes, or nanoparticles
- For research use only
Medchemexpress LLC Biotin methyl ester 500mg
Biotin methyl ester is a biochemical reagent that can be used as a biological material or organic compound for life science related research
Medchemexpress LLC Biotin-PFP ester | 120550-35-8 | 97.0% | 1 G
Biotin-PFP ester is a biotinylated pentafluorophenyl (PFP) ester reagent used as an alkyl/ether-based PROTAC linker for the synthesis of PROTAC molecules. It provides an activated ester for coupling to amine-containing ligands and a biotin affinity tag for purification or detection.
- Provides a biotin handle for affinity capture and detection.
- Features a PFP-activated ester for efficient coupling to amine-containing ligands.
- Suitable as an alkyl/ether-based linker in PROTAC synthesis workflows.
- Offered in multiple laboratory-scale pack sizes for convenient use.
Medchemexpress LLC DBCO-biotin | 1418217-95-4 | MFCD22380751 | 98.5% | 502.63 g·mol⁻1 | C28H30N4O3S | 10MG
DBCO-Biotin is a bifunctional click-chemistry reagent that links a dibenzocyclooctyne (DBCO) reactive moiety to a biotin affinity tag, enabling copper-free strain-promoted alkyne-azide cycloaddition (SPAAC) for bioconjugation and probe development. Supplied as a high-purity solid for laboratory research, it is commonly used in bioconjugation, affinity enrichment, and linker synthesis applications.
- Enables copper-free click chemistry via DBCO-mediated SPAAC.
- Provides a biotin tag for affinity capture and detection.
- High purity suitable for sensitive bioconjugation workflows.
- Available in small mg-scale quantities for research use.
- Stable when stored under recommended conditions; consult safety data for handling.
Medchemexpress LLC Biotin-Gastrin Releasing Peptide, human TFA | 3085.67 | 5 MG
Biotin-Gastrin Releasing Peptide, human TFA, is a biotinylated gastrin releasing peptide (GRP). Gastrin-releasing peptide (GRP) is a neuropeptide known for its growth-stimulatory and tumorigenic properties. This product is intended for research use only and is not sold to patients.
- Biotinylated gastrin releasing peptide (GRP)
- Has growth-stimulatory and tumorigenic properties
- Intended for research use only
Medchemexpress LLC DBCO-PEG12-NHS ester | 2093934-94-0 | 96.12% | C50H71N3O18 | 100 MG
DBCO-PEG12-NHS ester is a PEG-based PROTAC linker designed for the synthesis of PROTACs. It functions as a click chemistry reagent, utilizing a DBCO group to facilitate strain-promoted alkyne-azide cycloaddition (SPAAC) with azide-containing molecules. PROTACs leverage the intracellular ubiquitin-proteasome system for the selective degradation of target proteins.
- Enables synthesis of PROTACs
- Functions as a click chemistry reagent
- Utilizes DBCO group for SPAAC with azide-containing molecules
- Supports selective degradation of target proteins