Biochemikalien

Astaxanthin is a carotenoid pigment found primarily in marine animals including shrimp and salmon. It is a potent lipid-soluble antioxidant.

Purity: >96.5%, A reversible inhibitor of trypsin-like proteases and cysteine proteases. Soluble in water, ethanol, acetic acid and DMF. Stock solution: 10 mM in water, stable for 1 month at -20 °C. Effective conc.: 1-10 µM.

Soluble in DMF, hardly soluble in water. Use as alkaline phosphatase substrate forming a water insoluble blue reaction product. Often used together with NBT (Art.-Nr. 06428) for immunocytochemistry.

Assay: >85% enzymatically

Used in transfection studies.

Purity: >=99.5%. Suitable for electrophoresis

Purity: >99.9% (HPLC). Cell-permeable and irreversible inhibitor of calpain and other cystein proteases. Soluble in aqueous solutions. Stock solution: 1 mM, stable for months at -20 °C. Effective concentration: 1-10 µM.

Purity: >99%.

The water soluble MTT yields a yellowish solution. It is converted by mitochondrial dehydrogenases of metabolically active cells to an insoluble formazan product, which can be solubilized with DMSO. Read at 510 nm.

Ex: 354 nm. Em: 525 nm. Soluble in: Water. Although Fura-2 has been widely used as the preferred excitation-ratioable calcium indicator it has certain limitations, e.g., lower sensitivity compared to the single wavelength calcium dyes such as Fluo-8® and Cal-520®. AAT has recently developed Fura-8T to further improve the calcium response of Fura-2. Fura-8 has its emission...