Biotin and derivatives
Medchemexpress LLC Biotin-val-ala-asp(ome)-fluoromethyl ketone | 1135688-15-1 | >98.0% | 672.81 g/mol | C30H49FN6O8S | 100 MG
Biotin-VAD-FMK is a cell-permeable, irreversible, biotin-labeled caspase inhibitor used to identify active caspases in cell lysates by covalently trapping active enzymes and enabling detection or affinity enrichment via the biotin tag.
- Cell-permeable, irreversible caspase inhibitor for activity-based labeling.
- Biotin tag enables detection and streptavidin-based enrichment.
- Suitable for profiling active caspases in cell lysates and biochemical assays.
- Available as a solid white to light yellow powder for convenient handling.
- High purity (>98.0%) for reliable experimental results.
- Stable when stored as powder at -20°C (up to 3 years) or 4°C (up to 2 years).
Medchemexpress LLC Heneicosaoxa PEG diacid bis(2,5-dioxo-1-pyrrolidinyl) ester | 2221948-98-5 | MFCD21363289 | 98.0% | 1237.34 g/mol | C54H96N2O29 | 100 MG
Bis-PEG21-NHS ester is a bifunctional polyethylene glycol (PEG)-based N-hydroxysuccinimide (NHS) ester linker used for amine conjugation in the synthesis of PROTACs and antibody-drug conjugates. It provides hydrophilicity and spacing between conjugated moieties.
- Bifunctional NHS ester for amine conjugation.
- PEG21 spacer provides hydrophilicity and flexibility.
- Suitable for PROTAC and ADC linker assembly.
- High purity: 98.0%.
- Molecular weight ~1237.34 g/mol.
- Solid powder; store powder at -20°C; in solvent store at -80°C (6 months) or -20°C (1 month).
- Available in lab-scale quantities such as 100 MG.
Med Vet International Hydroxychloroquine Tablets (Generic Plaquenil), 200mg, 100ct
VET LICENSE NEEDS TO BE PROVIDED IN 3-4 BUSINESS DAYS OR ORDER WILL BE CANCELLED
Hydroxychloroquine is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus.
Medchemexpress LLC Sulfo-Cy3-NHS disodium | 865.90 g/mol | C36H41N3Na2O13S3 | 10 MG
Sulfo-Cy3-NHS disodium is a water-soluble Cyanine3 (Cy3) derivative bearing an NHS ester for amine-reactive conjugation. The sulfonate groups increase aqueous solubility, making this reagent suitable for labeling proteins, peptides, and antibodies for fluorescence detection and imaging.
- Water-soluble NHS ester for efficient labeling of primary amines.
- Improved aqueous solubility due to sulfonate groups.
- Suitable for conjugation to proteins, antibodies, and peptides.
- Enables fluorescence detection and imaging applications.
- Stable solid form for routine laboratory handling and storage per manufacturer instructions.