Biotin and derivatives
Medchemexpress LLC PC azido-PEG3-NHS carbonate ester | 1802907-96-5 | MFCD29052189 | 98.7% | 640.60 | C26H36N6O13 | 10 MG
PC Azido-PEG3-NHS carbonate ester is a photocleavable linker used to attach an azido-terminated PEG3 spacer to primary amines on proteins, amine-modified oligonucleotides, and other amine-containing molecules via an NHS carbonate ester, enabling bioorthogonal click chemistry and light-triggered release.
- Photocleavable linker for light-triggered release
- Labels primary amines on proteins and oligonucleotides
- Installs azido-terminated PEG3 spacer via NHS carbonate chemistry
- Enables copper-catalyzed azide-alkyne click reactions
- High purity suitable for bioconjugation (≈98.7%)
- Soluble in DMSO at ≥116.67 mg/mL
- Store at -20 °C in pure form for long-term stability
Medchemexpress LLC 2-iminobiotin hydrobromide | 76985-52-9 | MFCD00066150 | 324.24 | C10H18BrN3O2S | 50 MG
2-Iminobiotin hydrobromide is a biotin analogue and a reversible inhibitor of nitric oxide synthases (NOS), used in research to probe NOS-related pathways and neuroprotection mechanisms. It is supplied as the hydrobromide salt and is intended for laboratory research use only.
- Reversible nitric oxide synthase inhibitor for iNOS and n-cNOS.
- Used in neuroscience and neuromodulation research.
- Supplied as a hydrobromide salt for the active molecule.
- Molecular weight 324.24 g/mol; formula C10H18BrN3O2S.
- Available in small research pack sizes, including 50 MG.
Medchemexpress LLC Bis-PEG13-NHS ester | 2221949-00-2 | 98.0% | 884.92 | C38H64N2O21 | 100 MG
Bis-PEG13-NHS ester is a polyethylene glycol (PEG)-based NHS ester linker supplied for research use in bioconjugation, antibody-drug conjugate (ADC) synthesis, and PROTAC linker construction. It reacts with primary amines to form amide bonds, enabling stable attachment of payloads to biomolecules.
- Peg/alkyl/ether-based linker suitable for conjugation chemistry.
- Reactive NHS ester functional group for coupling to primary amines.
- Cleavable linker properties useful for ADC and PROTAC designs.
- Available in multiple pack sizes, including a 100 MG option.
- High purity, typically around 98.0%.
TARGETMOL CHEMICALS INC Biotin LC hydrazide 50MG
Also available in 1 mL, 5 mg, 10 mg, 25 mg, 100 mg, 200 mg and bulk. Please contact Fisher for quotes. Biotin LC hydrazide (BACH) is a modification reagent of long-chain protein. Biotin LC hydrazide transforms periodate-oxidized glycoproteins and can be used to target glycoproteins and glycans. Purity 99.4%