Ascomycin (High Purity) (Immunomycin, FK520, Analog of FK-506, FR-900520, L-683590, NSC 106410, WS 7238A)

Blue Ice

792

Supplied as a white to off-white solid.

Macrolide antibiotic. Ethyl analog of FK506. Strong immunosuppressant. Binds to the FK-506-binding protein FKBP12. This complex inhibits calcineurin (protein phosphatase 2B (PP2B)). Suppresses the production of T helper type 1 (Th1) (interferon and IL-2) and Th2 (IL-4 and IL-10) cytokines in T lymphocytes and preferentially inhibits the activation of mast cells. Anti-inflammatory. Used for topical treatment of inflammatory skin diseases. Potently inhibits anti-IgE-induced histamine and cytokine release and reduces IgE-dependent p38 MAPK activation in human basophils. Inhibits basophil degranulation at the initial phase of allergic skin reactions. Antifungal. Antimalaria compound. Anticonvulsant (antiepileptic).

Synonyms:
Immunomycin; FK520; Analog of FK-506; FR-900520; L-683590; NSC 106410; WS 7238A

CAS Number:
104987-12-4

Source:
Streptomyces sp.

Formula:
C43H69NO12

Solubility:
DMSO or ethanol

Molecular Weight:
792.0

Identity:
Determined by MS and IR.

Purity:
≥98%

Appearance:
Supplied as a white to off-white solid.

Storage and Stability:
Lyophilized powder may be stored at -20°C. Stable for 12 months after receipt at -20°C. Reconstitute with sterile buffer or ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Reconstituted product is stable for 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.