Biotin and derivatives
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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).
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Medchemexpress LLC Af647-nhs ester tritea | 407627-61-6 | 99.7% | 1259.66 | 5 MG
AF647-NHS ester is an analogue of Alexa Fluor 647 (AF647) with an excitation wavelength (λex) of 635 nm (conventional fluorescence detection) / 620 nm (instantaneous detection). The NHS ester can covalently bind to molecules with amino groups, such as proteins and antibodies.
- Analogue of Alexa Fluor 647 (AF647)
- Excitation wavelength (λex) of 635 nm (conventional fluorescence detection) / 620 nm (instantaneous detection)
- NHS ester can covalently bind to molecules with amino groups (e.g., proteins, antibodies)
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