| Identification | Back Directory |  [Name]
  42-O-[(1,1-Dimethylethyl)dimethylsilyl]rapamycin |  [CAS]
  143030-02-8 |  [Synonyms]
  Rapamycin Impurity 32 42-O-[(1,1-Dimethylethyl)dimethylsilyl]rapamycin Rapamycin, 42-O-[(1,1-dimethylethyl)dimethylsilyl]- Clobetasone Butyrate Impurity 9 (Clobetasone Butyrate EP Impurity I) |  [Molecular Formula]
  C57H93NO13Si |  [MOL File]
  143030-02-8.mol |  [Molecular Weight]
  1028.45 |  
 | Chemical Properties | Back Directory |  [Boiling point ]
  977.0±75.0 °C(Predicted) |  [density ]
  1.12±0.1 g/cm3(Predicted) |  [storage temp. ]
  -20°C Freezer |  [solubility ]
  Dichloromethane, Methanol |  [form ]
  Solid |  [pka]
  10.40±0.70(Predicted) |  [color ]
  White |  
 | Hazard Information | Back Directory |  [Uses]
  42-O-[(1,1-Dimethylethyl)dimethylsilyl]rapamycin is an intermediate in the synthesis of 8-O-Methyl-rapamycin which is a derivative of Rapamycin (R124000), a triene macrolide antibiotic isolated from Streptomyces hygroscopicus. Name derived from the native word for Easter Island, Rapa’Nui. Used as an immunosuppressant; antirestenotic. Sirolimus (INN/USAN), also known as rapamycin, is an immunosuppressant drug used to prevent rejection in organ transplantation; it is especially useful in kidney transplants. |  
  
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